Abstract
C14H25CuNO5, triclinic, P1̄ (no. 2), a = 7.7319(3) Å, b = 9.9198(5) Å, c = 11.6827(5) Å, α = 81.866(4)°, β = 75.576(4)°, γ = 74.562(4)°, V = 833.78(7) Å3, Z = 2, Rgt(F) = 0.0287, wRref(F2) = 0.0807, T = 100(2) K.

The molecular structure is shown in the figure. Table 1 contains crystallographic data and Table 2 contains the list of the atoms including atomic coordinates and displacement parameters.
Data collection and handling.
| Crystal: | Blue prism |
| Size: | 0.20 × 0.15 × 0.05 mm |
| Wavelength: | Mo Kα radiation (0.71073 Å) |
| μ: | 1.33 mm−1 |
| Diffractometer, scan mode: | XtaLAB Synergy, ω |
| θmax, completeness: | 25.2°, >99% |
| N(hkl)measured, N(hkl)unique, Rint: | 6693, 2993, 0.020 |
| Criterion for Iobs, N(hkl)gt: | Iobs > 2 σ(Iobs), 2850 |
| N(param)refined: | 199 |
| Programs: | CrysAlisPRO [1], SHELX [2], [3], WinGX/ORTEP [4] |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).
| Atom | x | y | z | Uiso*/Ueq |
|---|---|---|---|---|
| Cu | 0.56895(3) | 0.51741(3) | 0.76281(2) | 0.01278(11) |
| O1 | 0.7586(2) | 0.44364(16) | 0.61990(12) | 0.0138(3) |
| O2 | 0.6933(2) | 0.35962(16) | 0.86834(12) | 0.0128(3) |
| O3 | 0.4413(2) | 0.67769(16) | 0.66269(13) | 0.0138(3) |
| O4 | 0.7137(2) | 0.64086(16) | 0.80112(13) | 0.0147(3) |
| O5 | 0.3553(2) | 0.58506(17) | 0.90843(13) | 0.0143(3) |
| H5O | 0.362(4) | 0.604(3) | 0.9729(13) | 0.021* |
| N1 | 0.3764(2) | 0.40014(19) | 0.74762(15) | 0.0125(4) |
| C1 | 0.8800(3) | 0.3304(2) | 0.61609(19) | 0.0139(4) |
| C2 | 0.9146(3) | 0.2362(2) | 0.71505(19) | 0.0157(5) |
| H2 | 1.006858 | 0.151833 | 0.699858 | 0.019* |
| C3 | 0.8259(3) | 0.2559(2) | 0.83238(19) | 0.0134(4) |
| C4 | 0.9971(3) | 0.2949(3) | 0.49525(19) | 0.0187(5) |
| H4A | 0.917539 | 0.298797 | 0.440763 | 0.028* |
| H4B | 1.076697 | 0.200235 | 0.500969 | 0.028* |
| H4C | 1.073127 | 0.362632 | 0.465428 | 0.028* |
| C5 | 0.8881(3) | 0.1479(2) | 0.9273(2) | 0.0198(5) |
| H5A | 0.943719 | 0.189436 | 0.975965 | 0.030* |
| H5B | 0.979090 | 0.067826 | 0.890309 | 0.030* |
| H5C | 0.782131 | 0.116078 | 0.977387 | 0.030* |
| C6 | 0.4456(3) | 0.8044(2) | 0.66060(18) | 0.0148(4) |
| C7 | 0.5564(3) | 0.8541(2) | 0.7141(2) | 0.0187(5) |
| H7 | 0.544212 | 0.952659 | 0.706524 | 0.022* |
| C8 | 0.6836(3) | 0.7722(2) | 0.77759(19) | 0.0155(5) |
| C9 | 0.3184(3) | 0.9088(2) | 0.5933(2) | 0.0223(5) |
| H9A | 0.347115 | 0.884856 | 0.510966 | 0.033* |
| H9B | 0.334657 | 1.003191 | 0.594665 | 0.033* |
| H9C | 0.190644 | 0.906364 | 0.630368 | 0.033* |
| C10 | 0.7988(4) | 0.8448(3) | 0.8233(2) | 0.0244(5) |
| H10A | 0.763133 | 0.840837 | 0.910104 | 0.037* |
| H10B | 0.778927 | 0.942971 | 0.790957 | 0.037* |
| H10C | 0.929183 | 0.797575 | 0.798602 | 0.037* |
| C11 | 0.2038(3) | 0.5221(2) | 0.92577(19) | 0.0160(5) |
| H11A | 0.087672 | 0.588187 | 0.960320 | 0.019* |
| H11B | 0.220929 | 0.436283 | 0.980597 | 0.019* |
| C12 | 0.1966(3) | 0.4859(2) | 0.80598(19) | 0.0148(4) |
| H12A | 0.100775 | 0.433255 | 0.815897 | 0.018* |
| H12B | 0.163003 | 0.573248 | 0.755372 | 0.018* |
| C13 | 0.4072(3) | 0.2570(2) | 0.8052(2) | 0.0187(5) |
| H13A | 0.307256 | 0.215299 | 0.801758 | 0.028* |
| H13B | 0.410027 | 0.259934 | 0.888204 | 0.028* |
| H13C | 0.524775 | 0.200327 | 0.764110 | 0.028* |
| C14 | 0.3749(3) | 0.3929(3) | 0.62278(19) | 0.0187(5) |
| H14A | 0.492150 | 0.333995 | 0.583543 | 0.028* |
| H14B | 0.357440 | 0.487526 | 0.582496 | 0.028* |
| H14C | 0.273952 | 0.352278 | 0.619282 | 0.028* |
Source of material
All chemicals and solvents were used as purchased without further purification. The melting point of the complex was measured on a Mel-Temp II digital melting point apparatus and was uncorrected. The IR spectrum was measured on a Bruker Vertex 70v FTIR spectrophotometer from 4000 to 400 cm−1.
Bis(acetylacetonato)copper(II) was synthesized according to the literature method [5]. Bis(acetylacetonato)copper(II) (0.26 g, 1 mmol) and N,N-dimethylaminoethanol (Sigma-Aldrich, 0.18 g, 2 mmol) were dissolved in ethanol (25 mL) and refluxed for 3 h. The filtrate was evaporated until a light-blue precipitate was obtained. The precipitate was washed with n-hexane and recrystallised from its methanol solution. Light-blue crystals were obtained upon slow evaporation of the filtrate. Yield: 0.28 g (34%). M.pt: >573 K. IR (cm−1) 1576 (s) ν(C—N), 1521 (m) ν(C—O), 1066 (s) ν(C—O), 1017 (m) ν(C—O).
Experimental details
The C-bound H atoms were geometrically placed (C—H = 0.95–0.99 Å) and refined as riding with Uiso(H) = 1.2–1.5Ueq(C). The O-bound H-atom was located from difference Fourier maps and then refined with O—H = 0.84 ± 0.01 Å, and with Uiso(H) = 1.5Ueq(O).
Comment
Bis(acetylacetonato)copper(II), Cu(acac)2, and derivatives have been long known to form stable 5- and 6-coordinate complexes when also complexed with monodentate nitrogen donor ligands [6]. In the case of bidentate ligands, there are at least two possible reaction outcomes, namely i) the formation of a six-coordinate copper complex by the addition of the bidentate ligand or ii) the replacement of the acetylacetonato ligand(s) resulting in the formation of a new copper complex [6], [7]. The reactions of Cu(acac)2, and derivatives, with bidentate N,N ligands have been the most frequently investigated, with very few examples of analogous reactions with potentially N,O bidentate ligands found in the literature. A relevant example of the latter is the bis(hexafluoroacetylacetonato) copper(II) complex with N-,O-chelating ethanolamine, which was prepared to evaluate its suitability as a synthetic precursor for copper thin films in the absence of an external reductant [8]. Herein, we report the synthesis and X-ray structure determination of the parent Cu(acac)2 complex with ethanolamine, (I).
The molecular structure of (I) is shown in the figure (70% displacement ellipsoids). The copper(II) atom is bis-chelated by two acac anions and a N-,O-chelating ethanolamine molecule. The Cu—O(acac) bond lengths formed by the O1-acac ligand are not equivalent, indicating an asymmetric mode of coordination, i.e. Cu—O1, O2 = 2.0070(15) and 2.0340(15) Å. These differences are also reflected in the associated C—O bond lengths with the shorter C1—O1 bond [1.256(3) Å] involving the more tightly bound O1 atom and the longer C3—O2 bond [1.278(3) Å] involving the less tightly bound O3 atom. This disparity in the Cu—O1, O2 bond lengths can be traced, in part, to the weak trans influence exerted by the weakly bound hydroxy-O5 donor atom of the neutral ethanolamine ligand; the O2 atom also participates in a hydrogen bonding interaction in the crystal (see below). For the O3-acac ligand the Cu—O3, O4 bond lengths are 2.0207(15) and 2.0216(15) Å, respectively, indicating a symmetric mode of coordination. For the ethanolamine ligand, the hydroxy-O5 atom forms the longest Cu—O distance in (I), i.e. 2.0992(15) Å; the Cu—N bond length is 2.1710(18) Å. The N2O4 donor set defines a distorted octahedral geometry with the three O1—Cu—O5, O2—Cu—O3 and O4—Cu—N1 trans angles being 174.91(6), 178.13(6) and 169.98(6)°, respectively. The mode of coordination of the acac ligands leads to the formation of six-membered chelate rings, neither of which is strictly planar. The best description of the configuration in each case in an envelope with the Cu atom being the flap atom, i.e. for the O1-chelate ring, the Cu atom lies 0.170(2) Å out of the plane through the remaining five atoms (O1, O2, C1—C3) which has a r.m.s. deviation = 0.0087 Å; the equivalent values for the O3-chelate are 0.238(2) and 0.0094 Å, respectively. The five-membered chelate ring defined by the chelating ethanolamine ligand, comprising the Cu, O5, N1, C11 and C12 atoms, has the most pronounced envelope configuration in (I) with the C12 atom lying 0.642(3) Å out of the plane through the remaining four atoms (r.m.s. deviation = 0.0102 Å).
The most prominent feature of the supramolecular association in the crystal is the formation of centrosymmetric dimeric aggregates sustained by hydroxy-O—H⋯O(acac) hydrogen bonding [O5—H5O⋯O2i: H5O⋯O2i = 1.862(16) Å, O5⋯O2i = 2.655(2) Å with angle at H5O = 163(3)° for symmetry operation (i) 1 − x, 1 − y, 2 − z]. These interactions involve the less tightly coordinating O2 atom (see above) and give rise to a non-planar eight-membered {⋯OHCuO}2 synthon. The dimeric aggregates are connected into a supramolecular chain approximately parallel to [1̄ 0 3] by methyl-C—H⋯O(acac) interactions [C4—H4c⋯O1ii: H4c⋯O1ii = 2.55 Å, C4⋯O1ii = 3.530(3) Å with angle at H4c = 174° for (ii) 2 − x, 1 − y, 1 − z]. The chains assemble in the crystal without directional interactions between them.
A further analysis of the supramolecular association was performed by calculating the Hirshfeld surfaces and two-dimensional fingerprint plots, i.e. both full and delineated plots, using established protocols [9] and Crystal Explorer [10]. The consideration of the supramolecular association described in detail above leads to supramolecular chains, surface contacts of the type O⋯H/H⋯O [14.3%] make a significant contribution. The most dominant surface contacts are H⋯H contacts, contributing in total 78.8% of all contacts in the crystal of (I) with the only other contribution to the surface contacts being from C⋯H/H⋯C contacts [6.9%].
Acknowledgements
Sunway University Sdn Bhd is thanked for financial support of this work through Grant no. STR-RCTR-RCCM-001-2019.
References
1. Agilent Technologies: CrysAlisPRO. Agilent Technologies, Santa Clara, CA, U.S.A. (2010).Search in Google Scholar
2. Sheldrick, G. M.: A short history of SHELX. Acta Crystallogr. A64 (2008) 112–122.10.1107/S0108767307043930Search in Google Scholar PubMed
3. Sheldrick, G. M.: Crystal structure refinement with SHELXL. Acta Crystallogr. C71 (2015) 3–8.10.1107/S2053229614024218Search in Google Scholar PubMed PubMed Central
4. Farrugia, L. J.: WinGX and ORTEP for Windows: an update. J. Appl. Crystallogr. 45 (2012) 849–854.10.1107/S0021889812029111Search in Google Scholar
5. Holtzclaw Jr, H. F.; Carlson, A. H.; Collman, J. P.: Polarographic reduction of copper chelates of 1,3-diketones. J. Am. Chem. Soc. 78 (1956) 1838–1840.10.1021/ja01590a018Search in Google Scholar
6. Bacchi, A.; Pelizzi, G.: Synthesis and structural characterization of copper(II) complexes with the 2′-[1-(2-pyridinyl)ethylidene]oxalohydrazide ligand. Trans. Metal Chem. 28 (2003) 935–938.10.1023/A:1026316611296Search in Google Scholar
7. Kurauchi, T.; Matsui, M.; Nakamura, Y.; Ooi, S.; Kawaguchi, S.; Kuroya, H.: Six-coordinate copper(II) complexes derived from the reactions of bis(acetylacetonato)- and bis(ethylacetoacetate)-copper(II) with some bidentate nitrogen bases. Bull. Chem. Soc. Japan 47 (1974) 3049–3056.10.1246/bcsj.47.3049Search in Google Scholar
8. Pinkas, J.; Huffman, J. C.; Bollinger, J. C.; Streib, W. E.; Baxter, D. V.; Chisholm, M. H.; Caulton, K. G.: Syntheses, structures, and thermal behavior of Cu(hfacac) complexes derived from ethanolamines. Inorg. Chem. 36 (1997) 2930–2937.10.1021/ic960370hSearch in Google Scholar PubMed
9. Tan, S. L.; Jotani, M. M.; Tiekink, E. R. T.: Utilizing Hirshfeld surface calculations, non-covalent interaction (NCI) plots and the calculation of interaction energies in the analysis of molecular packing. Acta Crystallogr. E75 (2019) 308–318.10.1107/S2056989019001129Search in Google Scholar PubMed PubMed Central
10. Turner, M. J.; McKinnon, J. J.; Wolff, S. K.; Grimwood, D. J.; Spackman, P. R.; Jayatilaka, D.; Spackman, M. A.: Crystal Explorer v17. The University of Western Australia, Australia (2017).Search in Google Scholar
©2019 Kong Mun Lo et al., published by De Gruyter, Berlin/Boston
This work is licensed under the Creative Commons Attribution 4.0 Public License.
Articles in the same Issue
- 10.1515/ncrs-2020-frontmatter1
- The crystal structure of 3,5-dicarboxybenzenaminium perchlorate monohydrate, C8H8ClNO9
- The crystal structure of poly[(m4-4-bromoisophthalato-κ4O: O′:O′′:O′′′)zinc(II)], C8H3BrO4Zn
- Crystal structure of (E)-2-(2-chloro-6-hydroxybenzylidene)hydrazine-1-carbothioamide, C8H8ClN3O4S
- Crystal structure of 1,1′-methylenebis(3-ethyl-1H-imidazol-3-ium) bis(hexafluorophosphate(V)), C11H18F12N4P2
- The crystal structure of hexakis(1-isopropyl-1H-imidazole-κ1N)copper(II) dichloride, C36H58Cl2CuN12
- Crystal structure of catena-poly[μ2-4,4′-bipyridine-κ2N:N′)-tetrakis(μ2-2-((3,5,6-trichloropyridin-2-yl)oxy)acetato-κ2O:O′)dicobalt(II)], C19H10Cl6CoN3O6
- Crystal structure of (E)-1-(4-(((E)-2-bromo-6-hydroxybenzylidene)amino)phenyl)ethan-1-one O-methyl oxime, C16H15BrN2O2
- Crystal structure of ethyl 2-methyl-4-(5-methylthiophen-2-yl)-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, C18H21NO3S
- The crystal structure of 5-bromo-2-(1-methyl-1H-tetrazol-5-yl)pyridine, C7H6BrN5
- Crystal structure of Bis(acetato-κ2O,O′)-bis[4-(dimethylamino)pyridine-κN]nickel(II), C18H26N4NiO4
- Crystal structure of (E)-3-chloro-2-(((4-chlorophenyl)imino)methyl)phenol, C13H9Cl2NO
- The co-crystal structure of (17b)-estra-1,3,5(10)-triene-3,17diol – acetamide (1/1), a Z′ = 4 structure, C20H29NO3
- Crystal structure of 3-(3-(pyridin-3-yl)ureido)benzoic acid, C13H11N3O3
- The crystal structure of 1,1′-(9-ethyl-9H-carbazole-3,6-diyl)bis(3-ethyl-1H-imidazol-3-ium) bis(hexafluorophosphate(IV)), C24H27N5F12P2
- The crystal structure of 2-bromoisophthalic acid, C8H5BrO4
- The crystal structure of 13-ethoxycarbonyl-9-methyl-4-chlor-11-thioxo-8-oxa-10,12-diazatricyclo[7.3.1.02,7]trideca-2,4,6-triene, C14H15ClN2O3S
- The crystal structure of (E)-4-((4-(diethylamino)benzylidene)amino)-N,N-diphenylaniline, C29H29N3
- Crystal structure of 2-(3-(2-(4-phenylpiperazin-1-yl)ethyl)benzyl)isoindoline-1,3-dione, C27H27N3O2
- Crystal structure of 2-ethoxy-6-((E)-((3-(((E)-3-ethoxy-2-hydroxybenzylidene)amino)-2-hydroxypropyl)iminio)methyl)phenolate, C21H26N2O5
- The crystal structure of catena-poly(μ2-4,4′-bipyridine-κ2N:N′)-tetrakis(μ2-2-((3,5,6-trichloropyridin-2-yl)oxy)acetato-κ2O:O′)dinickel(II)], C19H10Cl6N3NiO6
- Crystal structure of hexakis(μ2-azido-κ2N:N)-diazido-κ1N-tetrakis(phenanthroline-κ2N,N′)tetrazinc(II), C48H32N32Zn4
- Synthesis and crystal structure of bis{2-bromo-6-(((4-(1-(methoxyimino)ethyl)phenyl)imino)methyl)phenolato-κ2N,O}cobalt(II)–dichloromethane(1/1), C34H32Br2Cl4CoN4O4
- Crystal structure of (E)-3-chloro-2-(((4-nitrophenyl)imino)methyl)phenol, C13H9ClN2O3
- Crystal structure of aqua-bis(5-bromo-6-methyl-picolinato-κ2N,O)zinc(II) dihydrate, C14H16Br2N2O7Zn
- Crystal structure of biaqua(2,2′-bipyridine-4,4′-dicarboxylato-κ2N,N′)(pyridine-2,6-dicarboxylato-κ3O,N,O′)nickel(II) hydrate, C19H15N3NiO10
- Synthesis and crystal structure of bis(2-(((4-(1-(ethoxyimino)ethyl)phenyl)imino)methyl)-5-fluorophenolato-κ2N,O)zinc(II) - methanol (1/1), C33H32F2N4O4Zn
- Crystal structure of tetraaqua-bis(μ2-5-aminoisophthalato-κ3N:O,O′)-bis(4,4′-dipyridylsulfide-κ1N)dizinc(II), C36H34N6O12S2Ni2
- Crystal structure of (1,4,8,11-tetraazacyclotetradecane-κ4N,N′,N′′,N′′′)palladium(II) tetracyanonickelate(II), C14H24N8NiPd
- The crystal structure of 3-benzyl-1-((8-(benzyloxy)quinolin-2-yl)methyl)-1H-imidazol-3-ium hexafluorophosphate, C27H24N3OF6P
- Crystal structure of 1-(4-chloro-2-hydroxy-5-iodophenyl)ethan-1-one, C8H6ClIO2
- Crystal structure of hexaaquamagnesium(II) bis((E)-4-((4-(dimethylamino)phenyl)diazenyl)benzenesulfonate), C28H40MgN6O12S2
- Crystal structure of the coordination polymer catena-poly[(1,2-di(pyridin-4-yl)ethane-κN)-(μ2-2-nitroisophthalato-κ2O:O′)zinc(II)], C20H17N3O7Zn
- Crystal structure of catena-{[tri-aqua-di-sodium bis(2-{[n-butyl(methyl)carbamothioyl]sulfanyl}acetate)]}n, [C16H34N2Na2O7S4]n
- The crystal structure of diaqua-bis(μ2-3-((3-acetyl-5-carboxyphenyl)oxidophosphoryl)-5-carboxybenzoato-κ2O:O′)bis(5,5′-dimethyl-2,2′-bipyridine-k2N,N′)zinc(II), C56H46N4O22P2Zn2
- Crystal structure of N′,2-bis((E)-2-chloro-6-hydroxybenzylidene)hydrazine-1-carbothiohydrazide, C15H12Cl2N4O2S
- Crystal structure of 2-[(1E)-{[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]iminiumyl}methyl]-5-(dodecyloxy)benzen-1-olate, C23H39NO5
- Crystal structure of 12-(2-hydroxybenzoyl)benzo[f]pyrido[1,2-a]indole-6,11-dione, C23H13NO4
- Crystal structure of chlorido-(4-chloro-6-(p-tolyl)pyrimidine-κ2C,N)-(triphenylphosphane-κP)palladium(II), C29H23Cl2N2PPd
- Crystal structure of catena-poly[diaqua-bis(3,4,5,6-tetrabromo-carboxybenzoato-κ1O)-(μ2-4,4′-bipyridine-κ2N:N′)cobalt(II)], C26H14Br8CoN2O10
- Crystal structure of catena-poly[dibenzyl-dichlorido-(μ2-[4,4′-bipyridine]1,1′-dioxide-κ2O:O′)tin(IV)], C24H22Cl2N2O2Sn
- Crystal structure of benzyl-chlorido-(4-chloro-N-[(2-oxidophenyl)methylidene]benzenecarbohydrazonato)-methanol-tin(IV), C22H20Cl2N2O3Sn
- Crystal structure of catena-poly[triaqua-(1,3-di(1H-imidazol-1-yl)benzene-κ2N:N′)-(3-nitrophthalato-κ1O)cobalt(II)] — water (2/3), C20H22N5O10.5Co
- Crystal structure of (3R,5R,8R,9R,10R,12R,13R,14R)-4,4,8,10,14-pentamethyl-17-((R)-2,6,6-trimethyltetrahydro-2H-pyran-2-yl)hexadecahydro-1H-cyclopenta[a]phenanthrene-3,12-diol, C30H52O3
- Crystal structure of 3-(3-(4-carboxyphenyl)ureido)pyridin-1-ium perchlorate, C26H24Cl2N6O14
- Crystal structure of 8-hydroxy-2-methylquinolin-1-ium chloride dihydrate, C10H14ClNO3
- Crystal structure of (dibenzyl sulphoxide-κO)dibromido-bis(4-bromobenzyl-κC)tin(IV), C28H26Br4OSSn
- Crystal structure of bromido-tri(4-chlorophenyl-κ1C)-(ethanol-κ1O)tin(IV) — 4,4′-dimethyl-2,2′-bipyridine (2/1), C52H48Br2Cl6N2O2Sn2
- Crystal structure of 2-butyl-6-(ethylamino)-1H-benzo[de]isoquinoline-1,3(2H)-dione, C18H20N2O2
- Crystal structure of (4-chloro-N-[(2-oxido-5-chlorophenyl)methylidene] benzene-carbohydrazonato-κ3N,O,O′)bis(2-fluorobenzyl)tin(IV), C28H20Cl2F2N2O2Sn
- Crystal structure of aqua-chlorido-(4-fluorobenzyl-κC)-(N′-(4-methoxy-2-oxidobenzylidene)-3-hydroxy-2-naphthohydrazidato-κ3N,O,O′)tin(IV), C26H22ClFN2O5Sn
- Crystal structure of catena-poly[tri(4-chlorophenyl)-(μ2-hydroxido)tin(IV)] – 2-propanol (1/1), C21H21Cl3O2Sn
- Crystal structure of bromido-dimethyl-4-tolyl-(triphenylphosphine oxide)tin(IV), C27H28BrOPSn
- Crystal structure of 2-(bis(2-hydroxyethyl)ammonio)ethane-1-sulfonate, C6H15NO5S
- Crystal structure of bis[triaqua-(μ2-1,2-di(4-pyridyl)ethylene-κ2N:N′)-(4-sulfonatobenzoato-κ2O,O′)zinc(II)], C13H15NO8SZn
- Crystal structure of 2-((2-(3-hydroxy-7-methylene-2,3-dihydro-7H-furo[3,2-g]chromen-2-yl)propan-2-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol – a marmesin derivative, C20H24O10
- Crystal structure of octa(4-chlorobenzyl)-dichlorido-bis(μ2-methanolato)-bis(μ3-oxo)-tetratin(IV), C58H54Cl10O4Sn4
- Crystal structure of iodido-triphenyl-(triphenylphosphine oxide)tin(IV), C36H30IOPSn
- Crystal structure of dichlorido-bis(4-methylphenyl-κC)-bis(triphenylarsine oxide-κO)tin(IV), C50H44As2Cl2O2Sn
- Crystal structure of 4-benzyl-1-oxo-N-phenethyl-1H-[1,4]oxazino [4,3-b]indazole-3-carboxamide, C26H21N3O3
- Crystal structure of bis{(N-[(5-chloro-2-oxidophenyl)methylidene]-2-hydroxybenzenecarbohydrazonato)-dioxo-molybdenum(VI)}(μ2-4,4′-bipyridine), C38H26Cl2Mo2N6O10
- Crystal structure of dichlorido-octamethyl-bis(μ3-oxido)-bis(μ2-2-(phenylamino)ethanolato-κ2O:O)tetratin(IV), C24H44Cl2N2O4Sn4
- The crystal structure of 1-(2-(2-(imidazo[1,5-a]pyridine-4-ium)ethoxy)ethyl)-imidazo[1,5-a]pyridine-4-ium bis(hexafluorophosphate) — acetonitrile (1/1), C18H20ON4F12P2
- Crystal structure of cyclo[tetra(μ2-cyanido)-tetracyanido-bis(1,4,7,10-tetraazacyclododecane-κ4N,N′,N′′,N′′′)dinickel(II)dipalladium(II)] hexahydrate, C24H52N16Ni2O6Pd2
- Crystal structure of (dimethyl sulfoxide)-dioxido-[2-hydroxy-N′-(4-oxo-4-phenylbutan-2-ylidene)benzohydrazidato κ3N,O,O′]molybdenum(VI), C19H20MoN2O6S
- Crystal structure of bis(acetylacetonato-κ2O,O′)-(ethanolamine-κ2N,O)copper(II), C14H25CuNO5
- Crystal structure of chlorido-diphenyl-(isopropyl(propyl)carbamodithioato-κ2S,S′)tin(IV), C19H24ClNS2Sn
- The crystal structure of bis(imidazole-1-yl)methane monohydrate, C7H10N4O
- The crystal structure of bis(4-nitroimidazole-1-1yl)methane, C7H6N6O4
- Crystal structure of di(naphthalen-2-yl)sulfane, C20H14S
- Crystal structure of 3-acetyl-6-bromo-4-hydroxy-2H-chromen-2-one, C11H7BrO4
- Crystal structure of N′2,N′6-bis((E)-1-(pyrazin-2-yl)ethylidene)pyridine-2,6-dicarbohydrazide — methanol (1/2), C21H25N9O4
- The crystal structure of 3-nitro-4-(p-tolylamino)-2H-chromen-2-one, C16H12N2O4
- The crystal structure of 1,2-bis((4-methoxyphenyl)ethynyl)benzene, C24H18O2
- Crystal structure of a low-temperature (100 K) polymorph of catena-poly[(μ2-4,4′-bipyridine-κ2N,N′)-bis(O,O′-diethyldithiophosphato-κ1S)zinc(II)], C18H28N2O4P2S4Zn
- The pseudosymmetric low temperature polymorph of catena-poly[(μ2-4,4′-bipyridyl-κN,N′)-bis(O,O′-diethyldithiophosphato-κS)-cadmium(II)], {C18H28CdN2O4P2S4}n
- Crystal structure of 3-iodophthalic acid, C8H5IO4
- The crystal structure of tert-butyl (tert-butoxy(oxo)methyl)(5-bromo-2-fluorophenyl)carbamate, C16H21BrFNO4
- The crystal structure of bis(μ2-5,7-dichloroquinolin-8-olato-κ3N,O:O)-tetrakis(5,7-dichloroquinolin-8-olato-κ2N,O)bis(methanol-κ1O)dieuropium(III) — toluene (1/1), C63H39Cl12Eu2N6O8
- Crystal structure of dichlorido-(N′-(1-(3-ethylpyrazin-2-yl)ethylidene)-4-methoxybenzohydrazide-κ3N,N′,O)cadmium(II), C16H18N4O2Cl2Cd
- A redetermination of the crystal structure of catena-poly[(bis(O,O′-isopropyl dithiophosphato-κ2S,S′)-(μ2-1,2-bis(3-pyridylmethylene)hydrazine-κ2N,N′)cadmium(II)], {C24H38CdN4O4P2S4}n
Articles in the same Issue
- 10.1515/ncrs-2020-frontmatter1
- The crystal structure of 3,5-dicarboxybenzenaminium perchlorate monohydrate, C8H8ClNO9
- The crystal structure of poly[(m4-4-bromoisophthalato-κ4O: O′:O′′:O′′′)zinc(II)], C8H3BrO4Zn
- Crystal structure of (E)-2-(2-chloro-6-hydroxybenzylidene)hydrazine-1-carbothioamide, C8H8ClN3O4S
- Crystal structure of 1,1′-methylenebis(3-ethyl-1H-imidazol-3-ium) bis(hexafluorophosphate(V)), C11H18F12N4P2
- The crystal structure of hexakis(1-isopropyl-1H-imidazole-κ1N)copper(II) dichloride, C36H58Cl2CuN12
- Crystal structure of catena-poly[μ2-4,4′-bipyridine-κ2N:N′)-tetrakis(μ2-2-((3,5,6-trichloropyridin-2-yl)oxy)acetato-κ2O:O′)dicobalt(II)], C19H10Cl6CoN3O6
- Crystal structure of (E)-1-(4-(((E)-2-bromo-6-hydroxybenzylidene)amino)phenyl)ethan-1-one O-methyl oxime, C16H15BrN2O2
- Crystal structure of ethyl 2-methyl-4-(5-methylthiophen-2-yl)-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, C18H21NO3S
- The crystal structure of 5-bromo-2-(1-methyl-1H-tetrazol-5-yl)pyridine, C7H6BrN5
- Crystal structure of Bis(acetato-κ2O,O′)-bis[4-(dimethylamino)pyridine-κN]nickel(II), C18H26N4NiO4
- Crystal structure of (E)-3-chloro-2-(((4-chlorophenyl)imino)methyl)phenol, C13H9Cl2NO
- The co-crystal structure of (17b)-estra-1,3,5(10)-triene-3,17diol – acetamide (1/1), a Z′ = 4 structure, C20H29NO3
- Crystal structure of 3-(3-(pyridin-3-yl)ureido)benzoic acid, C13H11N3O3
- The crystal structure of 1,1′-(9-ethyl-9H-carbazole-3,6-diyl)bis(3-ethyl-1H-imidazol-3-ium) bis(hexafluorophosphate(IV)), C24H27N5F12P2
- The crystal structure of 2-bromoisophthalic acid, C8H5BrO4
- The crystal structure of 13-ethoxycarbonyl-9-methyl-4-chlor-11-thioxo-8-oxa-10,12-diazatricyclo[7.3.1.02,7]trideca-2,4,6-triene, C14H15ClN2O3S
- The crystal structure of (E)-4-((4-(diethylamino)benzylidene)amino)-N,N-diphenylaniline, C29H29N3
- Crystal structure of 2-(3-(2-(4-phenylpiperazin-1-yl)ethyl)benzyl)isoindoline-1,3-dione, C27H27N3O2
- Crystal structure of 2-ethoxy-6-((E)-((3-(((E)-3-ethoxy-2-hydroxybenzylidene)amino)-2-hydroxypropyl)iminio)methyl)phenolate, C21H26N2O5
- The crystal structure of catena-poly(μ2-4,4′-bipyridine-κ2N:N′)-tetrakis(μ2-2-((3,5,6-trichloropyridin-2-yl)oxy)acetato-κ2O:O′)dinickel(II)], C19H10Cl6N3NiO6
- Crystal structure of hexakis(μ2-azido-κ2N:N)-diazido-κ1N-tetrakis(phenanthroline-κ2N,N′)tetrazinc(II), C48H32N32Zn4
- Synthesis and crystal structure of bis{2-bromo-6-(((4-(1-(methoxyimino)ethyl)phenyl)imino)methyl)phenolato-κ2N,O}cobalt(II)–dichloromethane(1/1), C34H32Br2Cl4CoN4O4
- Crystal structure of (E)-3-chloro-2-(((4-nitrophenyl)imino)methyl)phenol, C13H9ClN2O3
- Crystal structure of aqua-bis(5-bromo-6-methyl-picolinato-κ2N,O)zinc(II) dihydrate, C14H16Br2N2O7Zn
- Crystal structure of biaqua(2,2′-bipyridine-4,4′-dicarboxylato-κ2N,N′)(pyridine-2,6-dicarboxylato-κ3O,N,O′)nickel(II) hydrate, C19H15N3NiO10
- Synthesis and crystal structure of bis(2-(((4-(1-(ethoxyimino)ethyl)phenyl)imino)methyl)-5-fluorophenolato-κ2N,O)zinc(II) - methanol (1/1), C33H32F2N4O4Zn
- Crystal structure of tetraaqua-bis(μ2-5-aminoisophthalato-κ3N:O,O′)-bis(4,4′-dipyridylsulfide-κ1N)dizinc(II), C36H34N6O12S2Ni2
- Crystal structure of (1,4,8,11-tetraazacyclotetradecane-κ4N,N′,N′′,N′′′)palladium(II) tetracyanonickelate(II), C14H24N8NiPd
- The crystal structure of 3-benzyl-1-((8-(benzyloxy)quinolin-2-yl)methyl)-1H-imidazol-3-ium hexafluorophosphate, C27H24N3OF6P
- Crystal structure of 1-(4-chloro-2-hydroxy-5-iodophenyl)ethan-1-one, C8H6ClIO2
- Crystal structure of hexaaquamagnesium(II) bis((E)-4-((4-(dimethylamino)phenyl)diazenyl)benzenesulfonate), C28H40MgN6O12S2
- Crystal structure of the coordination polymer catena-poly[(1,2-di(pyridin-4-yl)ethane-κN)-(μ2-2-nitroisophthalato-κ2O:O′)zinc(II)], C20H17N3O7Zn
- Crystal structure of catena-{[tri-aqua-di-sodium bis(2-{[n-butyl(methyl)carbamothioyl]sulfanyl}acetate)]}n, [C16H34N2Na2O7S4]n
- The crystal structure of diaqua-bis(μ2-3-((3-acetyl-5-carboxyphenyl)oxidophosphoryl)-5-carboxybenzoato-κ2O:O′)bis(5,5′-dimethyl-2,2′-bipyridine-k2N,N′)zinc(II), C56H46N4O22P2Zn2
- Crystal structure of N′,2-bis((E)-2-chloro-6-hydroxybenzylidene)hydrazine-1-carbothiohydrazide, C15H12Cl2N4O2S
- Crystal structure of 2-[(1E)-{[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]iminiumyl}methyl]-5-(dodecyloxy)benzen-1-olate, C23H39NO5
- Crystal structure of 12-(2-hydroxybenzoyl)benzo[f]pyrido[1,2-a]indole-6,11-dione, C23H13NO4
- Crystal structure of chlorido-(4-chloro-6-(p-tolyl)pyrimidine-κ2C,N)-(triphenylphosphane-κP)palladium(II), C29H23Cl2N2PPd
- Crystal structure of catena-poly[diaqua-bis(3,4,5,6-tetrabromo-carboxybenzoato-κ1O)-(μ2-4,4′-bipyridine-κ2N:N′)cobalt(II)], C26H14Br8CoN2O10
- Crystal structure of catena-poly[dibenzyl-dichlorido-(μ2-[4,4′-bipyridine]1,1′-dioxide-κ2O:O′)tin(IV)], C24H22Cl2N2O2Sn
- Crystal structure of benzyl-chlorido-(4-chloro-N-[(2-oxidophenyl)methylidene]benzenecarbohydrazonato)-methanol-tin(IV), C22H20Cl2N2O3Sn
- Crystal structure of catena-poly[triaqua-(1,3-di(1H-imidazol-1-yl)benzene-κ2N:N′)-(3-nitrophthalato-κ1O)cobalt(II)] — water (2/3), C20H22N5O10.5Co
- Crystal structure of (3R,5R,8R,9R,10R,12R,13R,14R)-4,4,8,10,14-pentamethyl-17-((R)-2,6,6-trimethyltetrahydro-2H-pyran-2-yl)hexadecahydro-1H-cyclopenta[a]phenanthrene-3,12-diol, C30H52O3
- Crystal structure of 3-(3-(4-carboxyphenyl)ureido)pyridin-1-ium perchlorate, C26H24Cl2N6O14
- Crystal structure of 8-hydroxy-2-methylquinolin-1-ium chloride dihydrate, C10H14ClNO3
- Crystal structure of (dibenzyl sulphoxide-κO)dibromido-bis(4-bromobenzyl-κC)tin(IV), C28H26Br4OSSn
- Crystal structure of bromido-tri(4-chlorophenyl-κ1C)-(ethanol-κ1O)tin(IV) — 4,4′-dimethyl-2,2′-bipyridine (2/1), C52H48Br2Cl6N2O2Sn2
- Crystal structure of 2-butyl-6-(ethylamino)-1H-benzo[de]isoquinoline-1,3(2H)-dione, C18H20N2O2
- Crystal structure of (4-chloro-N-[(2-oxido-5-chlorophenyl)methylidene] benzene-carbohydrazonato-κ3N,O,O′)bis(2-fluorobenzyl)tin(IV), C28H20Cl2F2N2O2Sn
- Crystal structure of aqua-chlorido-(4-fluorobenzyl-κC)-(N′-(4-methoxy-2-oxidobenzylidene)-3-hydroxy-2-naphthohydrazidato-κ3N,O,O′)tin(IV), C26H22ClFN2O5Sn
- Crystal structure of catena-poly[tri(4-chlorophenyl)-(μ2-hydroxido)tin(IV)] – 2-propanol (1/1), C21H21Cl3O2Sn
- Crystal structure of bromido-dimethyl-4-tolyl-(triphenylphosphine oxide)tin(IV), C27H28BrOPSn
- Crystal structure of 2-(bis(2-hydroxyethyl)ammonio)ethane-1-sulfonate, C6H15NO5S
- Crystal structure of bis[triaqua-(μ2-1,2-di(4-pyridyl)ethylene-κ2N:N′)-(4-sulfonatobenzoato-κ2O,O′)zinc(II)], C13H15NO8SZn
- Crystal structure of 2-((2-(3-hydroxy-7-methylene-2,3-dihydro-7H-furo[3,2-g]chromen-2-yl)propan-2-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol – a marmesin derivative, C20H24O10
- Crystal structure of octa(4-chlorobenzyl)-dichlorido-bis(μ2-methanolato)-bis(μ3-oxo)-tetratin(IV), C58H54Cl10O4Sn4
- Crystal structure of iodido-triphenyl-(triphenylphosphine oxide)tin(IV), C36H30IOPSn
- Crystal structure of dichlorido-bis(4-methylphenyl-κC)-bis(triphenylarsine oxide-κO)tin(IV), C50H44As2Cl2O2Sn
- Crystal structure of 4-benzyl-1-oxo-N-phenethyl-1H-[1,4]oxazino [4,3-b]indazole-3-carboxamide, C26H21N3O3
- Crystal structure of bis{(N-[(5-chloro-2-oxidophenyl)methylidene]-2-hydroxybenzenecarbohydrazonato)-dioxo-molybdenum(VI)}(μ2-4,4′-bipyridine), C38H26Cl2Mo2N6O10
- Crystal structure of dichlorido-octamethyl-bis(μ3-oxido)-bis(μ2-2-(phenylamino)ethanolato-κ2O:O)tetratin(IV), C24H44Cl2N2O4Sn4
- The crystal structure of 1-(2-(2-(imidazo[1,5-a]pyridine-4-ium)ethoxy)ethyl)-imidazo[1,5-a]pyridine-4-ium bis(hexafluorophosphate) — acetonitrile (1/1), C18H20ON4F12P2
- Crystal structure of cyclo[tetra(μ2-cyanido)-tetracyanido-bis(1,4,7,10-tetraazacyclododecane-κ4N,N′,N′′,N′′′)dinickel(II)dipalladium(II)] hexahydrate, C24H52N16Ni2O6Pd2
- Crystal structure of (dimethyl sulfoxide)-dioxido-[2-hydroxy-N′-(4-oxo-4-phenylbutan-2-ylidene)benzohydrazidato κ3N,O,O′]molybdenum(VI), C19H20MoN2O6S
- Crystal structure of bis(acetylacetonato-κ2O,O′)-(ethanolamine-κ2N,O)copper(II), C14H25CuNO5
- Crystal structure of chlorido-diphenyl-(isopropyl(propyl)carbamodithioato-κ2S,S′)tin(IV), C19H24ClNS2Sn
- The crystal structure of bis(imidazole-1-yl)methane monohydrate, C7H10N4O
- The crystal structure of bis(4-nitroimidazole-1-1yl)methane, C7H6N6O4
- Crystal structure of di(naphthalen-2-yl)sulfane, C20H14S
- Crystal structure of 3-acetyl-6-bromo-4-hydroxy-2H-chromen-2-one, C11H7BrO4
- Crystal structure of N′2,N′6-bis((E)-1-(pyrazin-2-yl)ethylidene)pyridine-2,6-dicarbohydrazide — methanol (1/2), C21H25N9O4
- The crystal structure of 3-nitro-4-(p-tolylamino)-2H-chromen-2-one, C16H12N2O4
- The crystal structure of 1,2-bis((4-methoxyphenyl)ethynyl)benzene, C24H18O2
- Crystal structure of a low-temperature (100 K) polymorph of catena-poly[(μ2-4,4′-bipyridine-κ2N,N′)-bis(O,O′-diethyldithiophosphato-κ1S)zinc(II)], C18H28N2O4P2S4Zn
- The pseudosymmetric low temperature polymorph of catena-poly[(μ2-4,4′-bipyridyl-κN,N′)-bis(O,O′-diethyldithiophosphato-κS)-cadmium(II)], {C18H28CdN2O4P2S4}n
- Crystal structure of 3-iodophthalic acid, C8H5IO4
- The crystal structure of tert-butyl (tert-butoxy(oxo)methyl)(5-bromo-2-fluorophenyl)carbamate, C16H21BrFNO4
- The crystal structure of bis(μ2-5,7-dichloroquinolin-8-olato-κ3N,O:O)-tetrakis(5,7-dichloroquinolin-8-olato-κ2N,O)bis(methanol-κ1O)dieuropium(III) — toluene (1/1), C63H39Cl12Eu2N6O8
- Crystal structure of dichlorido-(N′-(1-(3-ethylpyrazin-2-yl)ethylidene)-4-methoxybenzohydrazide-κ3N,N′,O)cadmium(II), C16H18N4O2Cl2Cd
- A redetermination of the crystal structure of catena-poly[(bis(O,O′-isopropyl dithiophosphato-κ2S,S′)-(μ2-1,2-bis(3-pyridylmethylene)hydrazine-κ2N,N′)cadmium(II)], {C24H38CdN4O4P2S4}n