Abstract
C14H12O4, orthorhombic, Pca21 (no. 29), a = 22.6015(12) Å, b = 7.1344(4) Å, c = 7.3789(4) Å, V = 1189.83(11) Å3, Z = 4, Rgt(F) = 0.065, wRref(F2) = 0.186, T = 298 K.

The crystal structure is shown in the figure, Tables 1–3 contain details of the measurement method and a list of the atoms including atomic coordinates and displacement parameters.
Data collection and handling.
| Crystal: | Yellow, block, size 0.25×0.30×0.40 mm |
| Wavelength: | Mo Kα radiation (0.71073 Å) |
| μ: | 1.00 cm−1 |
| Diffractometer, scan mode: | Bruker AXS D8-Venture, Triumph-IμS-Cu, φ |
| 2θmax: | 80.57° |
| N(hkl)measured, N(hkl)unique: | 39770, 7393 |
| N(param)refined: | 166 |
| Programs: | SHELXL [1], OLEX2 [2] |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).
| Atom | Site | x | y | z | Uiso |
|---|---|---|---|---|---|
| H(9) | 4a | −0.7900 | −0.8724 | −0.4803 | 0.083 |
| H(8) | 4a | −0.6984 | −0.0679 | −0.5395 | 0.099 |
| H(6') | 4a | −0.6367 | −0.6927 | −0.6763 | 0.034 |
| H(5') | 4a | −0.5581 | −0.9021 | −0.6775 | 0.035 |
| H(6) | 4a | −0.7076 | −0.6821 | −0.4700 | 0.036 |
| H(2') | 4a | −0.5494 | −0.3644 | −0.3240 | 0.042 |
| H(3') | 4a | −0.4727 | −0.5755 | −0.3172 | 0.042 |
| H(3) | 4a | −0.8398 | −0.1921 | −0.5543 | 0.054 |
| H(7'A) | 4a | −0.4599 | −0.9999 | −0.7232 | 0.075 |
| H(7'B) | 4a | −0.4908 | −1.1150 | −0.5689 | 0.075 |
| H(7'C) | 4a | −0.4215 | −1.1030 | −0.5769 | 0.075 |
| H(4) | 4a | −0.8740 | −0.4956 | −0.5285 | 0.047 |
Atomic displacement parameters (Å2).
| Atom | Site | x | y | z | U11 | U22 | U33 | U12 | U13 | U23 |
|---|---|---|---|---|---|---|---|---|---|---|
| O(11) | 4a | −0.45915(6) | −0.8726(2) | −0.4869(3) | 0.0269(5) | 0.0457(7) | 0.0553(9) | 0.0077(5) | −0.0074(7) | −0.0069(8) |
| O(9) | 4a | −0.81691(7) | −0.7953(2) | −0.4795(4) | 0.0267(6) | 0.0305(6) | 0.108(2) | −0.0043(5) | 0.0141(9) | −0.0087(9) |
| O(8) | 4a | −0.73449(8) | −0.0729(2) | −0.5487(4) | 0.0420(8) | 0.0234(6) | 0.133(3) | 0.0061(5) | 0.007(1) | 0.0059(9) |
| O(10) | 4a | −0.63125(8) | −0.1933(2) | −0.4939(5) | 0.0375(7) | 0.0244(6) | 0.138(2) | −0.0057(5) | 0.001(1) | −0.002(1) |
| C(6') | 4a | −0.60369(7) | −0.6687(2) | −0.6049(3) | 0.0212(5) | 0.0302(6) | 0.0347(7) | −0.0028(5) | −0.0031(5) | −0.0029(6) |
| C(5') | 4a | −0.55664(7) | −0.7950(2) | −0.6058(3) | 0.0240(5) | 0.0290(6) | 0.0335(6) | −0.0029(5) | −0.0014(5) | −0.0045(6) |
| C(1') | 4a | −0.60204(6) | −0.5073(2) | −0.4990(3) | 0.0225(5) | 0.0263(5) | 0.0400(7) | −0.0035(4) | 0.0012(6) | −0.0027(7) |
| C(6) | 4a | −0.73381(6) | −0.5838(2) | −0.4902(3) | 0.0222(5) | 0.0217(5) | 0.0471(8) | 0.0020(4) | 0.0027(6) | −0.0014(7) |
| C(2') | 4a | −0.55160(8) | −0.4731(3) | −0.3933(3) | 0.0281(7) | 0.0330(7) | 0.0441(9) | −0.0058(6) | −0.0018(7) | −0.0100(7) |
| C(5) | 4a | −0.79390(7) | −0.6195(2) | −0.4991(3) | 0.0230(5) | 0.0273(6) | 0.0488(9) | 0.0008(4) | 0.0039(7) | −0.0048(7) |
| C(2) | 4a | −0.75257(9) | −0.2537(3) | −0.5320(4) | 0.0325(7) | 0.0241(6) | 0.068(2) | 0.0071(6) | 0.0032(9) | 0.0011(8) |
| C(4') | 4a | −0.50726(6) | −0.7589(2) | −0.4977(3) | 0.0206(5) | 0.0322(6) | 0.0338(7) | −0.0018(4) | −0.0020(6) | −0.0009(7) |
| C(1) | 4a | −0.71184(7) | −0.4010(2) | −0.5113(3) | 0.0237(5) | 0.0205(5) | 0.050(1) | 0.0024(4) | 0.0017(6) | −0.0017(7) |
| C(3') | 4a | −0.50535(8) | −0.5982(3) | −0.3906(3) | 0.0255(6) | 0.0395(9) | 0.0412(9) | −0.0048(6) | −0.0069(6) | −0.0075(7) |
| C(3) | 4a | −0.81314(9) | −0.2902(3) | −0.5389(4) | 0.0295(7) | 0.0327(8) | 0.072(2) | 0.0107(6) | −0.0003(8) | 0.0021(9) |
| C(7') | 4a | −0.4577(1) | −1.0360(4) | −0.5980(5) | 0.041(1) | 0.042(1) | 0.067(2) | 0.0115(9) | −0.004(1) | −0.011(1) |
| C(4) | 4a | −0.83357(8) | −0.4717(3) | −0.5231(4) | 0.0238(6) | 0.0366(8) | 0.057(1) | 0.0047(5) | 0.0007(7) | −0.0024(8) |
| C(7) | 4a | −0.64826(7) | −0.3600(2) | −0.5016(4) | 0.0272(6) | 0.0227(5) | 0.063(1) | −0.0019(5) | 0.0023(9) | −0.0011(8) |
Source of material
A 100 mL benzene solution of the 1,4-benzoquinone (1 mmol) and 4-methoxybenzaldehyde (7.5 mmol), was placed into the outer jacket of a Liebig condenser. The solution was bubbled with nitrogen (2 min), the flask was sealed with a septum and then irradiated for six days (total illumination time of 30 h), under solar radiation conditions in the range 800–1100 Watts/m2 (November–March). The solvent was evaporated under reduced pressure and the residue was chromatographed on silica gel (3:1 petroleum ether/ethyl acetate) obtaining yellow crystals with 79% of yield. Analysis: Solid crystalline m.p. 144–145 °C. IR (KBr) ν (cm−1): 3343 (O—H), 1631 (C=O). 1H-NMR (400 MHz, CDCl3): δ 3.87 (s, 3H, OMe), 6.90 (d, 1H, J = 8.8 Hz, 3-H or 4-H), 6.97 (d, 2H, J=8.8 Hz, 2′-H + 3′-H or 5′-H + 6′-H), 7.08 (m, 2H, 4-H or 3-H + 6-H), 7.72 (d, 2H, J = 8.8 Hz, 6′-H + 5′-H or 3′-H + 2′-H), 8.32 (s, 1H, 5-OH), 11.38 (s, 1H, 2-OH); 13C-NMR (100 MHz, CDCl3): δ 55.5, 113.6, 115.9, 118.1, 118.7, 119.2, 122.4, 124.4, 130.4, 131.8, 148.7, 155.9, 162.8, 199.7; HRMS (APCI): [M+H]+ calcd for C14H12O4: 244.07356; found: 244.07360.
Experimental details
H atoms were located in the difference Fourier map, but refined with fixed individual displacement parameters, using a riding mode with C—H distances of 0.93 Å (for aromatic rings), 0.96 Å (for CH3), with Uiso(H) values of 1.2Ueq(C) (for CH in aromatic), and 1.5Ueq(C) (for methyl group), O—H distances are 0.82 Å with Uiso(H) values of 1.5Ueq(O).
Discussion
Acylated quinones and their derivatives serve as valuable and versatile precursors for the construction of numerous biologically active natural products [3]. Various synthetic routes to such acyl quinone building blocks have been described. Common methods, such as the Friedel–Crafts acylation and the Fries rearrangement are often inefficient and require the use of corrosive reagents such as Lewis acids and acyl chlorides [4]. Recently, research has shifted towards the implementation of greener synthetic protocols throughout organic synthesis [5, 6]. One such example is the photochemical reaction between a 1,4-benzoquinone and 4-methoxybenzaldehyde, often termed the ``photo Friedel-Crafts acylation'', a reaction that be carried out in sunlight.
The fragments 2,5-dihydroxyphenyl and 4′-methoxy-phenyl make angle of 43.5(2)°. One intramolecular hydrogen bond is observed between O(8)—H(8)⋯O(10) atoms. The crystal packing is stabilized by an intermolecular O—H⋯O hydrogen bond, between hydroxyl groups O(9)—H(9)⋯Oi(8) [symmetry code: (i) x, 1−y, z] which links the molecules into chains with graph-set notation C(8) running parallel to the b axis, further π–π stacking interactions are observed between the phenyl ring of the 2,5-dihydroxyphenyl fragment with centroid–centroid distance of 3.835 Å. All distances and angles are in the normal range.
Acknowledgements:
This work was supported by Fondo Nacional de Ciencia y Tecnología (Grant No. 1120050). I.B. thank to CONICYT, FONDEQUIP program/single crystal diffractometer/EQM130021.
References
1. Sheldrick, G. M.: A short history of SHELX. Acta Cryst. A64 (2008) 112–122.10.1107/S0108767307043930Suche in Google Scholar PubMed
2. Dolomanov, O. V.; Bourhis, L. J.; Gildea, R. J.; Howard, J. A. K.; Puschmann, H.: OLEX2: A complete structure solution, refinement and analysis program. J. Appl. Crystallogr. 42 (2009) 339–341.10.1107/S0021889808042726Suche in Google Scholar
3. Mitchell, L. J.; Lewis, W.; Moody Ch. J.: Solar photochemistry: optimisation of the photo Friedel-Crafts acylation of naphthoquinones. Green Chem. 15 (2013) 2830–2842.10.1039/c3gc41477aSuche in Google Scholar
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©2016 Julio Benites et al., published by De Gruyter.
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Artikel in diesem Heft
- Cover and Frontmatter
- Crystal structure of rac-4,4,4-trifluoro-3-hydroxy-3-methylbutanoic acid, C5H7O2F3
- Crystal structure of 5-methyl-2-phenyl-1,3-dioxane-5-carboxylic acid, C12H14O4
- Crystal structure of ethyl 2-(2-(2-(4-chlorophenyl)-3-methylbutanamido)thiazol-4-yl)acetate, C18H21ClN2O3S
- The crystal structure of (4E,11E,31E,38E)-1,4,12,15,18,26,31,39-Octaaza-7,21,24-trihydroxy-penta-cyclo[13·13·13·16,10·120,24·133,37]tetratetraconta-4,6(44),7,9,11,18,20(43),21,23,25,31,33(42),34,36,38-pentadecaene, C36H42N8O3
- Crystal structure of poly[diaqua-μ5-4-(3,5-dicarboxylato-κ3O1:O2:O3-phenoxy)phthalato-κ3O5,O7:O8)(μ2-4-(1H-pyrazol-5-yl)pyridine-κ2N:N′)dicobalt(II)] C24H16N3O11Co2
- Crystal structure of catena-poly[(μ2-acetamido-benzoato-κ2O:O′)triphenyltin(IV)], C27H23NO3Sn
- Crystal structure of chlorido(2,2′-((1E,1′E)-(((1R,2R)-cyclohexane-1,2-diyl)bis(azanylylidene))bis(methylylidene))diphenolato-κ4N,N′,O,O′)iron(III), C20H20ClFeN2O2
- Crystal structure of (E)-3-(4-tert-butyl)phenyl)-1-(3-chlorophenyl)prop-2-en-1-one, C18H17CIO
- Crystal structure of trans-1,2-bis(pyridinium-4-yl)ethylene–2-carboxy-4-methylbenzoate (1/2), C30H26N2O8
- Crystal structure of poly[aqua-ethylenediamine-tetraacetatolead(II)zinc(II)]
- Crystal structure of (E)-2-((2-(2,4-dinitrophenyl)hydrazono)methyl)-4-nitrophenol — triethylamine (2/1), C32H33N11O14
- Crystal structure of catena-poly[diaqua-bis-(μ2-5-carboxy-2-(pyridin-4-yl)benzoato-κ2O:N)cadmium(II)] dihydrate, C26H24N2O12Cd
- Crystal structure of 2-(ethoxycarbonyl)-2-(2-nitro-1-phenylethyl)-3-oxopyrrolidinium chloride, C15H19N2O5Cl
- Crystal structure of 4-((pyridin-4-ylmethyl)sulfinyl)pyridine, C11H10N2OS
- Crystal structure of 2,5-diethoxy-1,4-bis[2-(quinoline)ethenyl]benzene, C32H28N2O2
- Crystal structure of diaqua(μ2-1,1′-biphenyl-4,4′-diylbis(1H-imidazole)-κ2N:N′)tetrakis(3-carboxy-5-ethylpyridine-2-carboxylato-κ2N,O)dizinc(II), C54H50N8O18Zn2
- Crystal structure of a poly[bis(3,4,5,6-tetrachlorophthalato)neodym(III)potassium(I)] — 4,4′-bipyridine — water (1/1/5.5)
- The second polymorph of triethylammonium 2,4,6-trisulfanylidene-1,3,5-triazinan-1-ide, C9H18N4S3
- Crystal structure of 2,2′-diamino-[1,1′-biphenyl]-4,4′-dicarboxylic acid dihydrate, C14H16N2O6
- Crystal structure of the catena-poly[bis(1H-imidazole-κN)-(μ2-furan-2,5-dicarboxylato-κ2O1:O4)manganese(II)]monohydrate, C12H12MnN4O6
- Crystal structure of (acetylacetonato-κ2O:O′)bis-((1-(2-hydroxyphenyl)-3-(pyridin-2-yl)prop-2-en-1-one)-κ2C,N)iridium(III), C33H27IrN2O6
- Crystal structure of 1-benzyl-3-(4-methylpyridin-2-yl)-1H-imidazol-3-ium hexafluorophosphate, C16H16F6N3P
- Crystal structure of tetraethylammonium 3,5-dinitrosalicylate, C15H23N3O7
- Crystal structure of 4-[5-(4-fluorophenyl)-3-(4-hydroxyphenyl)-4,5-dihydropyrazol-1-yl] benzenesulfonamide, C21H18FN3O3S
- Crystal structure of 2,4-dichlorobenzene anhydride, C14H6Cl4O3
- Crystal structure of bis(2-hydroxy-2-phenylacetato-κ2O,O′)bis(pyridine-κN)nickel(II), C26H24N2NiO6
- Crystal structure of (E)-4-nitro-2-(((3-(tetrahydro-8λ4-[1,3,2]oxazaborolo[2,3-b][1,3,2]oxaborol-8-yl)phenyl)imino)methyl)phenol – water (1/2), C17H18BN3O5·2H2O
- Crystal structure of 5-(4-carboxyphenoxy)-nicotinic acid, C13H9NO5
- Crystal structure of catena-poly[hexaaquabis(μ2-3-nitrophthalate-κ2O:O′)-(μ2-1,4-bis(4-pyridylmethyl)piperazine-κ2N:N′)dimanganese(II)] dihydrate, C32H42Mn2N6O20
- Crystal structure of diaquabis(bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate-κ4O, O′:/O′′,O′′′)bis-(2,2′-bipyridine-κ2N, N′)dicadmium(II) hydrate
- Crystal structure of (R)-1-(1-(6-fluorobenzo[d]thiazol-2-yl)ethyl)-3-phenylthiourea
- Crystal structure of poly[(μ2-1,4-bis((1H-imidiazol-1-yl)methyl)benzene-κ2N:N′)-(μ2-4,4′-(1,2-phenylenebis(oxy)dibenzoato-κ4O,O′:O′′,O′′′)nickel(II)], C34H26O6N4Ni
- Crystal structure of 3′,4′,5-trihydroxy-3,7-dimethoxyflavone, C17H14O7
- Crystal structure of n-butyl-chlorido-bis[N-sec-butyl,N-n-propyl-carbamodithioato κ2S,S′]-tin(IV), C20H41ClN2S4Sn
- Crystal structure of poly[bis(μ4-4,4′-(1,2-phenylenebis(oxy))dibenzoato-κ4O:O′:O′′:O′′′)bis(μ3-4,4′-(1,2-phenylenebis(oxy))dibenzoato–κ3O:O′:O′′)(μ2-1-(4-((1H-imidazol-1-yl)methyl)benzyl)-1H-imidazole-κ2N:N′)tetracobalt(II)], C94H62O24N4Co4
- Crystal structure of catenapoly[diaqua-(μ24,4′-bipyridine)-κ2N:N′)-bis(2,6-difluorobenzoate)-κO)nickel(II)] ethanol monosolvate, C28H30F4N2O8Ni
- Crystal structure of 2-(9H-fluoren-9-ylidene)hydrazine-1-carbothioamide, C14H11N3S
- Crystal structure of 2-(4-methoxyphenyl)-2,3-dihydro-1H-perimidine, C18H16N2O
- Crystal structure of catena-poly[diaquabis(μ2-3-carboxybenzene-1,2-dicarboxylato-1:2κ2O:O′)-(μ2-1,4-bis(2-ethylbenzimidazol-1-ylmethyl)-benzene-1:1′κ2N:N′)dizinc(II)], [Zn2(C26H26N4)(C9H4O6)2(H2O)2]
- Crystal structure of diaquabis(phenoxyacetato-κ2O,O′)-zinc(II), C16H18O8Zn
- Crystal structure of 4-(1H-imidazol-1-yl)-6-pyrimidinylferrocene, C17H14FeN4
- Crystal structure of [2-(4-methoxyphenyl)pyrazine-κ2C,N) chlorido[N,N′-bis-(2,6-diisopropyl-phenyl)imidazol-2-ylidene-κC)] palladium(II), C38H45ClN4OPd
- Crystal structure of 2-(4-acetyl-2,6-dimethyl-phenyl)-5,6-dichloro-isoindole-1,3-dione, C18H13Cl2NO3
- Crystal structure of 4,4′-bipyridin-1-ium 3,3′,5′-tricarboxy-[1,1′-biphenyl]-2-carboxylate, (C26H18N2O8)
- Crystal structure of catena-poly[diaqua-μ2-4,4′-biphenyl-4,4′-diyldipyridine-κ2N:N′-bis(5-carboxy-2,6-dimethylpyridine-3-carboxylato-κO)nickel(II)] dihydrate, C40H40N4O12Ni
- Crystal structure of poly-[μ2-4,4′-bipyridine-κ2N:N′−μ3-thiophene-2,3-di-carboxylato-κ4O,O′, O′′:O′′′ -cadmium(II)]
- Crystal structure of hexaaquamanganese(II) bis(3-carboxythiophene-2-carboxylate) C12H18MnO14S2
- Crystal structure of 4-(3-(pyridin-3-yl)-1H-1,2,4-triazol-5-yl)benzoic acid, C14H10N4O2
- Crystal structure of (E)-2-(benzo[d]thiazol-2-yl)-3-(pyridin-3-yl)acrylonitrile)
- Crystal structure of catena-poly[2,2′-bipyridinyl-6,6′-dicarboxylato-κ4N,N′,O,O′)-(μ2-2,2′-bipyridinyl-6′-carboxyl-6-carboxylato-κ5N,N′,O,O′:O′′)samarium(III)] monohydrate, C24H13N4O8Sm · H2O
- Crystal structure of catena-poly[bis(μ2-4-(3-(pyridin-3-yl)-1H-1,2,4-triazol-5-yl)benzoato)-κ2N:O)copper(II)] dihydrate, C28H22N8O6Cu
- Crystal structure of catena-poly[tetraaqua-(μ2-4,4′-bipyridine-k2N:N′)-zinc(II)] fumarate tetrahydrate, C14H26N2O12Zn
- Crystal structure of triaqua-(1,10-phenanthroline)-(dihydrogen-3,3′,3′′-(2,4,6-trioxo-1,3,5-triazinane-1,3,5-triyl)tripropanoato) cobalt(II)dihydrogen-3,3′,3′′-(2,4,6-trioxo-1,3,5-triazinane-1,3,5-triyl)tripropanoate, C72H82Co2N16O42
- Crystal structure of poly[dibromido-(μ2–4,4′-bis-(pyrid-4-yl)biphenyl-κ2N:N′)lead(II)], C22H16N2PbBr2
- Crystal structure of catena-poly[diaqua-bis(μ2-5-carboxy-2-(pyridin-4-yl)benzoato-κ2O:N)-cobalt(II)]dihydrate, C26H24N2O12Co
- Crystal structure of 5-(4-pyridyl)pyrimidine–4,4′-bipyridine–1,3,5-benzenetriol–water (1:1:1:1), C25H23N5O4
- Crystal structure of 5-hydroxy-4-((4-hydroxyphenyl)imino)naphthalen-1(4H)-one monohydrate, C16H11NO3 · 0.5H2O
- Crystal structure of 2-amino-N-(4-methoxyphenyl)benzamide, C14H14N2O2
- Crystal structure of (2,5-dihydroxyphenyl)-(4-hydroxy-3,5-dimethoxyphenyl)methanone, C15H14O6
- Crystal structure of dichlorido[bis(2-hydroxyethyl)5′-([2,2′:6′,2′′-terpyridin]-4′-yl)-[1,1′:3′,1′′-terphenyl]-4,4′′-dicarboxylato]zinc(II), C39H31Cl2N3O6Zn
- Crystal structure of bis[4-(3-carboxy-6-fluoro-1-(4-fluorophenyl)-4-oxo-1,4-dihydroquinolin-7-yl)piperazin-1-ium] benzene-1,4-dicarboxylate (C20H18F2N3O3)2(C8H4O4), C48H40F4N6O10
- Crystal structure of (2,5-dihydroxyphenyl)-(4-methoxyphenyl)methanone, C14H12O4
- Crystal structure of photochromic 1-(2-methyl-5-phenyl-3-thienyl-2-[2-methyl-5-(4-ethoxylphenyl)-3-thienyl] 3,3,4,4,5,5-hexafluoro-cyclopent-1-ene, C29H22F6OS2
- Crystal structure of poly[diaquabis(μ2-biphenyl-2,4′-dicarboxylato-κ2O:O′)tris(μ2-1,1′-biphenyl-4,4′-diylbis(1H-imidazole)-κ2N:N′)dicobalt(II)] monohydrat, C82H64N12O11Co2
- Crystal structure of 2-amino-4-(3,4-difluorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C16H12N2O2F2
- Crystal structure of poly[(di-μ2-aqua-κ2O:O)bis(μ5-oxalato-1:2κ2O1; 1κ1O2; 3:4:5κ3O3; 3κ1O4)(μ4-oxalato-1:2κ2O1; 2:3κ2O2; 3:4κ2O3; 4:1κ2O4)dizinc(II)disodium(I)]
- Crystal structure of tetraethylammonium hexachloridotantalate(V), C8H20Cl6NTa
- Crystal structure of (E)-2,4-dibromo-6-(((2-nitrophenyl)imino)methyl)phenol, C13H8Br2N2O3
- The crystal structure of 6-chloro-2,4-diphenylquinoline
- Crystal structure of (E)-2-(((1,10-phenanthrolin-5-yl)imino)methyl)-5-methylphenol monohydrate, C20H15N3O·H2O
- Crystal structure of tris(3-(2-pyridyl)pyrazole)zinc(II)tetrachlorido zincate(II), C24H21Cl4N9Zn2
- Crystal structure of 4-chloro-N,N-diethyl-6-(piperidin-1-yl)-1,3,5-triazin-2-amine, C12H20ClN5
- The crystal structure of 4-allyl-5-benzyl-2,4-dihydro-3H-1,2,4-triazol-3-one, C12H13N3O
- Crystal structure of diethyl 2-(((2-(pyridin-3-ylthio)phenyl)amino)methylene)malonate, C19H20N2O4S
- Crystal structure of fac-tricarbonyl(2-(isopropylimino)methyl-5-methylphenolatido-κ2N,O)(pyridine-κN)rhenium(I), C19H19N2O4Re
- Crystal structure of 1,3,6,8-tetrakis(p-tolylthio)pyrene, C44H34S4
- Crystal structure of catena-poly-(diaqua-(μ2-1,2-bis(4-pyridyl)ethene-κ2N:N′)-(4-methylphthalato-κ2O,O′)-cobalt(II)trihydrate, C21H26CoN2O9
- Crystal structure of tetraethylammonium fac-tricarbonyl(hexafluoroacetylacetonato-κ2O,O′)-(nitrato-κO)rhenium(I), C16H21O8N2F6Re
- Crystal structure of 3-(thiophen-2-yl)-5-(p-tolyl)-4,5-dihydro-1H-pyrazole-1-carboxamide
- Crystal structure of bis(1-ethyl-3-methylimidazolium) tetrabromidocadmate(II), [C6H11N2]2[CdBr4]
- Crystal structure of N′-(adamantan-2-ylidene)-isonicotinohydrazide, C16H19N3O
- Crystal structure of trans-tetraaquabis(4-(pyridin-4-ylsulfonyl)pyridine-κN)cobalt(II) diperchlorate dihydrate, C20H28Cl2CoN4O18S2
- Crystal structure of (Z)-4-(furan-2-yl(p-tolylamino)methylene)-3-methyl-1-p-tolyl-1H-pyrazol-5(4H)-one, C23H21N3O2
- Crystal structure of 2-[(4-fluorobenzyl)sulfanyl]-4-(2-methylpropyl)-6-oxo-1,6-dihydropyrimidine-5-carbonitrile, C16H16FN3OS
- Crystal structure of poly[octaaqua-tris(benzene-1,2,4,5-tetracarboxylato)tetralanthanum(III)] hexahydrate, C30H34La4O38
- Crystal structure of trans-tetraaqua-bis(4,4′-sulfonyldipyridine-κN)zinc(II) diperchlorate dihydrate, C20H28Cl2ZnN4O18S2
- Crystal structure of 4-nitro-thiophene-2-carboxylic acid, a structure with a Z′ = 4, C5H3NO4S
- Crystal structure of dirubidium trimercury(II) tetraselenide, Rb2Hg3Se4
- Crystal structure of 5-(adamantan-1-yl)-3-[(4-chloroanilino)methyl]-2,3-dihydro-1,3,4-oxadiazole-2-thione, C19H22ClN3OS
- Crystal structure of hexaaquamagnesium(II) 5,5′-bitetrazole-1,1′-diolate, C2H12N8O8Mg
- The crystal structure of catena-poly[(μ2-1,1′-benzene-1,4-diylbis(1H-benzimidazole-κ2N:N′)silver(I)] nitrate, C20H14N5AgO3
- The crystal structure of 1-(2-(4-chlorophenoxy)-4-chlorophenyl)ethanone, C14H10Cl2O2
- The crystal structure of 3,5-dinitro-1,3,5-oxadiazinane, C3H6N4O5
- Crystal structure of methyl 5-methoxy 1H-indole-2-carboxylate, C11H11NO3
- Crystal structure of (Z)-1-(((3-acetyl-2-hydroxyphenyl)amino)methylene)naphthalen-2(1H)-one, C19H15NO3
- Crystal structure of (Z)-5-(4-chlorobenzylidene)-2-thioxothiazolidin-4-one —dimethylsulfoxide (1:1), C12H12ClNO2S3
- Crystal structure of 5,5′-((4-(trifluoromethyl)phenyl)methylene)bis(1,3-dimethylpyrimidine-2,4,6(1H,3H,5H)-trione) – diethylamine – dichloromethane (1/1/1) C25H32Cl2F3N5O6
- Crystal structure of 2-(dimethylsulfanylidene)-N-(4-methoxyphenyl)-3-oxo-3-phenylpropanamide
- Crystal structure of (1,10-phenanthroline-κ2N,N′)bis(thiocyanato-κN)platinum(II), C14H8N4PtS2
- Crystal structure of di(μ2-chlorido)bis[2-(2-pyridyl)phenyl-κ2N,C1]dipalladium(II), C22H16Cl2N2Pd2
- Crystal structure of trans-dibromidodi(pyridine-κN)palladium(II), PdBr2(C5H5N)2
Artikel in diesem Heft
- Cover and Frontmatter
- Crystal structure of rac-4,4,4-trifluoro-3-hydroxy-3-methylbutanoic acid, C5H7O2F3
- Crystal structure of 5-methyl-2-phenyl-1,3-dioxane-5-carboxylic acid, C12H14O4
- Crystal structure of ethyl 2-(2-(2-(4-chlorophenyl)-3-methylbutanamido)thiazol-4-yl)acetate, C18H21ClN2O3S
- The crystal structure of (4E,11E,31E,38E)-1,4,12,15,18,26,31,39-Octaaza-7,21,24-trihydroxy-penta-cyclo[13·13·13·16,10·120,24·133,37]tetratetraconta-4,6(44),7,9,11,18,20(43),21,23,25,31,33(42),34,36,38-pentadecaene, C36H42N8O3
- Crystal structure of poly[diaqua-μ5-4-(3,5-dicarboxylato-κ3O1:O2:O3-phenoxy)phthalato-κ3O5,O7:O8)(μ2-4-(1H-pyrazol-5-yl)pyridine-κ2N:N′)dicobalt(II)] C24H16N3O11Co2
- Crystal structure of catena-poly[(μ2-acetamido-benzoato-κ2O:O′)triphenyltin(IV)], C27H23NO3Sn
- Crystal structure of chlorido(2,2′-((1E,1′E)-(((1R,2R)-cyclohexane-1,2-diyl)bis(azanylylidene))bis(methylylidene))diphenolato-κ4N,N′,O,O′)iron(III), C20H20ClFeN2O2
- Crystal structure of (E)-3-(4-tert-butyl)phenyl)-1-(3-chlorophenyl)prop-2-en-1-one, C18H17CIO
- Crystal structure of trans-1,2-bis(pyridinium-4-yl)ethylene–2-carboxy-4-methylbenzoate (1/2), C30H26N2O8
- Crystal structure of poly[aqua-ethylenediamine-tetraacetatolead(II)zinc(II)]
- Crystal structure of (E)-2-((2-(2,4-dinitrophenyl)hydrazono)methyl)-4-nitrophenol — triethylamine (2/1), C32H33N11O14
- Crystal structure of catena-poly[diaqua-bis-(μ2-5-carboxy-2-(pyridin-4-yl)benzoato-κ2O:N)cadmium(II)] dihydrate, C26H24N2O12Cd
- Crystal structure of 2-(ethoxycarbonyl)-2-(2-nitro-1-phenylethyl)-3-oxopyrrolidinium chloride, C15H19N2O5Cl
- Crystal structure of 4-((pyridin-4-ylmethyl)sulfinyl)pyridine, C11H10N2OS
- Crystal structure of 2,5-diethoxy-1,4-bis[2-(quinoline)ethenyl]benzene, C32H28N2O2
- Crystal structure of diaqua(μ2-1,1′-biphenyl-4,4′-diylbis(1H-imidazole)-κ2N:N′)tetrakis(3-carboxy-5-ethylpyridine-2-carboxylato-κ2N,O)dizinc(II), C54H50N8O18Zn2
- Crystal structure of a poly[bis(3,4,5,6-tetrachlorophthalato)neodym(III)potassium(I)] — 4,4′-bipyridine — water (1/1/5.5)
- The second polymorph of triethylammonium 2,4,6-trisulfanylidene-1,3,5-triazinan-1-ide, C9H18N4S3
- Crystal structure of 2,2′-diamino-[1,1′-biphenyl]-4,4′-dicarboxylic acid dihydrate, C14H16N2O6
- Crystal structure of the catena-poly[bis(1H-imidazole-κN)-(μ2-furan-2,5-dicarboxylato-κ2O1:O4)manganese(II)]monohydrate, C12H12MnN4O6
- Crystal structure of (acetylacetonato-κ2O:O′)bis-((1-(2-hydroxyphenyl)-3-(pyridin-2-yl)prop-2-en-1-one)-κ2C,N)iridium(III), C33H27IrN2O6
- Crystal structure of 1-benzyl-3-(4-methylpyridin-2-yl)-1H-imidazol-3-ium hexafluorophosphate, C16H16F6N3P
- Crystal structure of tetraethylammonium 3,5-dinitrosalicylate, C15H23N3O7
- Crystal structure of 4-[5-(4-fluorophenyl)-3-(4-hydroxyphenyl)-4,5-dihydropyrazol-1-yl] benzenesulfonamide, C21H18FN3O3S
- Crystal structure of 2,4-dichlorobenzene anhydride, C14H6Cl4O3
- Crystal structure of bis(2-hydroxy-2-phenylacetato-κ2O,O′)bis(pyridine-κN)nickel(II), C26H24N2NiO6
- Crystal structure of (E)-4-nitro-2-(((3-(tetrahydro-8λ4-[1,3,2]oxazaborolo[2,3-b][1,3,2]oxaborol-8-yl)phenyl)imino)methyl)phenol – water (1/2), C17H18BN3O5·2H2O
- Crystal structure of 5-(4-carboxyphenoxy)-nicotinic acid, C13H9NO5
- Crystal structure of catena-poly[hexaaquabis(μ2-3-nitrophthalate-κ2O:O′)-(μ2-1,4-bis(4-pyridylmethyl)piperazine-κ2N:N′)dimanganese(II)] dihydrate, C32H42Mn2N6O20
- Crystal structure of diaquabis(bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate-κ4O, O′:/O′′,O′′′)bis-(2,2′-bipyridine-κ2N, N′)dicadmium(II) hydrate
- Crystal structure of (R)-1-(1-(6-fluorobenzo[d]thiazol-2-yl)ethyl)-3-phenylthiourea
- Crystal structure of poly[(μ2-1,4-bis((1H-imidiazol-1-yl)methyl)benzene-κ2N:N′)-(μ2-4,4′-(1,2-phenylenebis(oxy)dibenzoato-κ4O,O′:O′′,O′′′)nickel(II)], C34H26O6N4Ni
- Crystal structure of 3′,4′,5-trihydroxy-3,7-dimethoxyflavone, C17H14O7
- Crystal structure of n-butyl-chlorido-bis[N-sec-butyl,N-n-propyl-carbamodithioato κ2S,S′]-tin(IV), C20H41ClN2S4Sn
- Crystal structure of poly[bis(μ4-4,4′-(1,2-phenylenebis(oxy))dibenzoato-κ4O:O′:O′′:O′′′)bis(μ3-4,4′-(1,2-phenylenebis(oxy))dibenzoato–κ3O:O′:O′′)(μ2-1-(4-((1H-imidazol-1-yl)methyl)benzyl)-1H-imidazole-κ2N:N′)tetracobalt(II)], C94H62O24N4Co4
- Crystal structure of catenapoly[diaqua-(μ24,4′-bipyridine)-κ2N:N′)-bis(2,6-difluorobenzoate)-κO)nickel(II)] ethanol monosolvate, C28H30F4N2O8Ni
- Crystal structure of 2-(9H-fluoren-9-ylidene)hydrazine-1-carbothioamide, C14H11N3S
- Crystal structure of 2-(4-methoxyphenyl)-2,3-dihydro-1H-perimidine, C18H16N2O
- Crystal structure of catena-poly[diaquabis(μ2-3-carboxybenzene-1,2-dicarboxylato-1:2κ2O:O′)-(μ2-1,4-bis(2-ethylbenzimidazol-1-ylmethyl)-benzene-1:1′κ2N:N′)dizinc(II)], [Zn2(C26H26N4)(C9H4O6)2(H2O)2]
- Crystal structure of diaquabis(phenoxyacetato-κ2O,O′)-zinc(II), C16H18O8Zn
- Crystal structure of 4-(1H-imidazol-1-yl)-6-pyrimidinylferrocene, C17H14FeN4
- Crystal structure of [2-(4-methoxyphenyl)pyrazine-κ2C,N) chlorido[N,N′-bis-(2,6-diisopropyl-phenyl)imidazol-2-ylidene-κC)] palladium(II), C38H45ClN4OPd
- Crystal structure of 2-(4-acetyl-2,6-dimethyl-phenyl)-5,6-dichloro-isoindole-1,3-dione, C18H13Cl2NO3
- Crystal structure of 4,4′-bipyridin-1-ium 3,3′,5′-tricarboxy-[1,1′-biphenyl]-2-carboxylate, (C26H18N2O8)
- Crystal structure of catena-poly[diaqua-μ2-4,4′-biphenyl-4,4′-diyldipyridine-κ2N:N′-bis(5-carboxy-2,6-dimethylpyridine-3-carboxylato-κO)nickel(II)] dihydrate, C40H40N4O12Ni
- Crystal structure of poly-[μ2-4,4′-bipyridine-κ2N:N′−μ3-thiophene-2,3-di-carboxylato-κ4O,O′, O′′:O′′′ -cadmium(II)]
- Crystal structure of hexaaquamanganese(II) bis(3-carboxythiophene-2-carboxylate) C12H18MnO14S2
- Crystal structure of 4-(3-(pyridin-3-yl)-1H-1,2,4-triazol-5-yl)benzoic acid, C14H10N4O2
- Crystal structure of (E)-2-(benzo[d]thiazol-2-yl)-3-(pyridin-3-yl)acrylonitrile)
- Crystal structure of catena-poly[2,2′-bipyridinyl-6,6′-dicarboxylato-κ4N,N′,O,O′)-(μ2-2,2′-bipyridinyl-6′-carboxyl-6-carboxylato-κ5N,N′,O,O′:O′′)samarium(III)] monohydrate, C24H13N4O8Sm · H2O
- Crystal structure of catena-poly[bis(μ2-4-(3-(pyridin-3-yl)-1H-1,2,4-triazol-5-yl)benzoato)-κ2N:O)copper(II)] dihydrate, C28H22N8O6Cu
- Crystal structure of catena-poly[tetraaqua-(μ2-4,4′-bipyridine-k2N:N′)-zinc(II)] fumarate tetrahydrate, C14H26N2O12Zn
- Crystal structure of triaqua-(1,10-phenanthroline)-(dihydrogen-3,3′,3′′-(2,4,6-trioxo-1,3,5-triazinane-1,3,5-triyl)tripropanoato) cobalt(II)dihydrogen-3,3′,3′′-(2,4,6-trioxo-1,3,5-triazinane-1,3,5-triyl)tripropanoate, C72H82Co2N16O42
- Crystal structure of poly[dibromido-(μ2–4,4′-bis-(pyrid-4-yl)biphenyl-κ2N:N′)lead(II)], C22H16N2PbBr2
- Crystal structure of catena-poly[diaqua-bis(μ2-5-carboxy-2-(pyridin-4-yl)benzoato-κ2O:N)-cobalt(II)]dihydrate, C26H24N2O12Co
- Crystal structure of 5-(4-pyridyl)pyrimidine–4,4′-bipyridine–1,3,5-benzenetriol–water (1:1:1:1), C25H23N5O4
- Crystal structure of 5-hydroxy-4-((4-hydroxyphenyl)imino)naphthalen-1(4H)-one monohydrate, C16H11NO3 · 0.5H2O
- Crystal structure of 2-amino-N-(4-methoxyphenyl)benzamide, C14H14N2O2
- Crystal structure of (2,5-dihydroxyphenyl)-(4-hydroxy-3,5-dimethoxyphenyl)methanone, C15H14O6
- Crystal structure of dichlorido[bis(2-hydroxyethyl)5′-([2,2′:6′,2′′-terpyridin]-4′-yl)-[1,1′:3′,1′′-terphenyl]-4,4′′-dicarboxylato]zinc(II), C39H31Cl2N3O6Zn
- Crystal structure of bis[4-(3-carboxy-6-fluoro-1-(4-fluorophenyl)-4-oxo-1,4-dihydroquinolin-7-yl)piperazin-1-ium] benzene-1,4-dicarboxylate (C20H18F2N3O3)2(C8H4O4), C48H40F4N6O10
- Crystal structure of (2,5-dihydroxyphenyl)-(4-methoxyphenyl)methanone, C14H12O4
- Crystal structure of photochromic 1-(2-methyl-5-phenyl-3-thienyl-2-[2-methyl-5-(4-ethoxylphenyl)-3-thienyl] 3,3,4,4,5,5-hexafluoro-cyclopent-1-ene, C29H22F6OS2
- Crystal structure of poly[diaquabis(μ2-biphenyl-2,4′-dicarboxylato-κ2O:O′)tris(μ2-1,1′-biphenyl-4,4′-diylbis(1H-imidazole)-κ2N:N′)dicobalt(II)] monohydrat, C82H64N12O11Co2
- Crystal structure of 2-amino-4-(3,4-difluorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C16H12N2O2F2
- Crystal structure of poly[(di-μ2-aqua-κ2O:O)bis(μ5-oxalato-1:2κ2O1; 1κ1O2; 3:4:5κ3O3; 3κ1O4)(μ4-oxalato-1:2κ2O1; 2:3κ2O2; 3:4κ2O3; 4:1κ2O4)dizinc(II)disodium(I)]
- Crystal structure of tetraethylammonium hexachloridotantalate(V), C8H20Cl6NTa
- Crystal structure of (E)-2,4-dibromo-6-(((2-nitrophenyl)imino)methyl)phenol, C13H8Br2N2O3
- The crystal structure of 6-chloro-2,4-diphenylquinoline
- Crystal structure of (E)-2-(((1,10-phenanthrolin-5-yl)imino)methyl)-5-methylphenol monohydrate, C20H15N3O·H2O
- Crystal structure of tris(3-(2-pyridyl)pyrazole)zinc(II)tetrachlorido zincate(II), C24H21Cl4N9Zn2
- Crystal structure of 4-chloro-N,N-diethyl-6-(piperidin-1-yl)-1,3,5-triazin-2-amine, C12H20ClN5
- The crystal structure of 4-allyl-5-benzyl-2,4-dihydro-3H-1,2,4-triazol-3-one, C12H13N3O
- Crystal structure of diethyl 2-(((2-(pyridin-3-ylthio)phenyl)amino)methylene)malonate, C19H20N2O4S
- Crystal structure of fac-tricarbonyl(2-(isopropylimino)methyl-5-methylphenolatido-κ2N,O)(pyridine-κN)rhenium(I), C19H19N2O4Re
- Crystal structure of 1,3,6,8-tetrakis(p-tolylthio)pyrene, C44H34S4
- Crystal structure of catena-poly-(diaqua-(μ2-1,2-bis(4-pyridyl)ethene-κ2N:N′)-(4-methylphthalato-κ2O,O′)-cobalt(II)trihydrate, C21H26CoN2O9
- Crystal structure of tetraethylammonium fac-tricarbonyl(hexafluoroacetylacetonato-κ2O,O′)-(nitrato-κO)rhenium(I), C16H21O8N2F6Re
- Crystal structure of 3-(thiophen-2-yl)-5-(p-tolyl)-4,5-dihydro-1H-pyrazole-1-carboxamide
- Crystal structure of bis(1-ethyl-3-methylimidazolium) tetrabromidocadmate(II), [C6H11N2]2[CdBr4]
- Crystal structure of N′-(adamantan-2-ylidene)-isonicotinohydrazide, C16H19N3O
- Crystal structure of trans-tetraaquabis(4-(pyridin-4-ylsulfonyl)pyridine-κN)cobalt(II) diperchlorate dihydrate, C20H28Cl2CoN4O18S2
- Crystal structure of (Z)-4-(furan-2-yl(p-tolylamino)methylene)-3-methyl-1-p-tolyl-1H-pyrazol-5(4H)-one, C23H21N3O2
- Crystal structure of 2-[(4-fluorobenzyl)sulfanyl]-4-(2-methylpropyl)-6-oxo-1,6-dihydropyrimidine-5-carbonitrile, C16H16FN3OS
- Crystal structure of poly[octaaqua-tris(benzene-1,2,4,5-tetracarboxylato)tetralanthanum(III)] hexahydrate, C30H34La4O38
- Crystal structure of trans-tetraaqua-bis(4,4′-sulfonyldipyridine-κN)zinc(II) diperchlorate dihydrate, C20H28Cl2ZnN4O18S2
- Crystal structure of 4-nitro-thiophene-2-carboxylic acid, a structure with a Z′ = 4, C5H3NO4S
- Crystal structure of dirubidium trimercury(II) tetraselenide, Rb2Hg3Se4
- Crystal structure of 5-(adamantan-1-yl)-3-[(4-chloroanilino)methyl]-2,3-dihydro-1,3,4-oxadiazole-2-thione, C19H22ClN3OS
- Crystal structure of hexaaquamagnesium(II) 5,5′-bitetrazole-1,1′-diolate, C2H12N8O8Mg
- The crystal structure of catena-poly[(μ2-1,1′-benzene-1,4-diylbis(1H-benzimidazole-κ2N:N′)silver(I)] nitrate, C20H14N5AgO3
- The crystal structure of 1-(2-(4-chlorophenoxy)-4-chlorophenyl)ethanone, C14H10Cl2O2
- The crystal structure of 3,5-dinitro-1,3,5-oxadiazinane, C3H6N4O5
- Crystal structure of methyl 5-methoxy 1H-indole-2-carboxylate, C11H11NO3
- Crystal structure of (Z)-1-(((3-acetyl-2-hydroxyphenyl)amino)methylene)naphthalen-2(1H)-one, C19H15NO3
- Crystal structure of (Z)-5-(4-chlorobenzylidene)-2-thioxothiazolidin-4-one —dimethylsulfoxide (1:1), C12H12ClNO2S3
- Crystal structure of 5,5′-((4-(trifluoromethyl)phenyl)methylene)bis(1,3-dimethylpyrimidine-2,4,6(1H,3H,5H)-trione) – diethylamine – dichloromethane (1/1/1) C25H32Cl2F3N5O6
- Crystal structure of 2-(dimethylsulfanylidene)-N-(4-methoxyphenyl)-3-oxo-3-phenylpropanamide
- Crystal structure of (1,10-phenanthroline-κ2N,N′)bis(thiocyanato-κN)platinum(II), C14H8N4PtS2
- Crystal structure of di(μ2-chlorido)bis[2-(2-pyridyl)phenyl-κ2N,C1]dipalladium(II), C22H16Cl2N2Pd2
- Crystal structure of trans-dibromidodi(pyridine-κN)palladium(II), PdBr2(C5H5N)2