Abstract
C10H6N4Cu2O4Br, orthorhombic, Pnma (no. 62), a = 6.7680(10) Å, b = 23.693(2) Å, c = 7.7301(11) Å, V = 1239.5(3) Å3, Z = 4, Rgt(F) = 0.0473, wRref(F2) = 0.1293, T = 298(2) K.

A part of the polymeric title crystal structure is shown in the figure (A = −x, 2 − y, 2 − z). Tables 1 and 2 contain details on crystal structure and measurement conditions and a list of the atoms including atomic coordinates and displacement parameters.
Data collection and handling.
| Crystal: | Red block |
| Size: | 0.46 × 0.45 × 0.25 mm |
| Wavelength: | Mo Kα radiation (0.71073 Å) |
| μ: | 6.68 mm−1 |
| Diffractometer, scan mode: | Bruker SMART, φ and ω-scans |
| θmax, completeness: | 25°, >99% |
| N(hkl)measured, N(hkl)unique, Rint: | 4841, 1095, 0.107 |
| Criterion for Iobs, N(hkl)gt: | Iobs > 2 σ(Iobs), 933 |
| N(param)refined: | 101 |
| Programs: | Bruker programs [1], SHELX [2], [3] |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).
| Atom | x | y | z | Uiso*/Ueq |
|---|---|---|---|---|
| Cu1 | 0.000000 | 1.000000 | 1.000000 | 0.0276(4) |
| Br1 | 0.82422(14) | 0.750000 | 0.96768(11) | 0.0395(4) |
| N1 | 0.1513(7) | 0.9285(2) | 1.0243(5) | 0.0275(11) |
| N2 | 0.3354(7) | 0.8248(2) | 0.9913(6) | 0.0332(12) |
| Cu2 | 0.47001(19) | 0.750000 | 0.96815(16) | 0.0448(4) |
| O1 | 0.0675(6) | 0.99214(16) | 0.7565(5) | 0.0310(9) |
| O2 | 0.2178(6) | 0.93310(18) | 0.5733(5) | 0.0390(10) |
| C1 | 0.1608(7) | 0.9476(2) | 0.7192(6) | 0.0269(12) |
| C2 | 0.2063(8) | 0.9091(2) | 0.8692(7) | 0.0276(12) |
| C3 | 0.2965(8) | 0.8572(2) | 0.8535(8) | 0.0320(13) |
| H3 | 0.331341 | 0.844318 | 0.744021 | 0.038* |
| C4 | 0.2860(8) | 0.8455(2) | 1.1470(8) | 0.0348(13) |
| H4 | 0.314624 | 0.824568 | 1.245711 | 0.042* |
| C5 | 0.1928(8) | 0.8975(2) | 1.1638(7) | 0.0326(13) |
| H5 | 0.159048 | 0.910797 | 1.273086 | 0.039* |
Source of material
A mixture of CuBr (28.69 mg,0.4 mmol), pyrazine-2-carboxylic acid (49.64 mg,0.4 mmol) and distilled water (10 mL) was sealed in a 23 mL Teflon-lined steel vessel (solution pH 2.5) and heated at 160 °C for 72 h, and then cooled to room temperature at a rate of 0.05 °C min−1. The resulting light turquoise block crystals of the compound were obtained and washed with distilled water. The yield is ca 37%. IR(KBr): 3257(s), 1598(s), 1519(s), 1496(s), 1445(s), 1359(s), 1246(s), 1176(s), 1116(s), 1075(s), 1001(s), 927(s), 899(s), 834(m), 771(m), 714(m), 616(m), 499(m)cm−1.
Experimental details
Hydrogen atoms were placed in their geometrically idealized positions and constrained to ride on their parent atoms.
Discussion
Supramolecular complexes, as an emerging class of hybrid materials, have attracted numbers of attention, due to not only their charming structures, but also the potential applications. In the process of design and synthesis, the rational combination of metal ions and the organic ligands are helpful to construct the target supramolecular complexes [4], [5], [6], [7], [8], [9]. Pyrazine carboxylate as a multifunctional ligand is excellent for many architectures: firstly, the multidentate organic ligands containing N-heterocycle and the carboxylate group possess potential coordination nodes and the strong coordination ability which can form various metal-organic constructions; secondly, pyrazine carboxylate can act as proton donors and acceptors and may build high-dimensional supramolecular frameworks by hydrogen-bonding or π-π stacking interactions. To the best of our knowledge, several literatures have reported many complexes based on pyrazine carboxylic ligands [10], [11], [12], [13].
As shown in the figure, one formula unit consist of one pyrazine carboxyl, two half Cu atoms and one bromine atom. Cu1 ion is in a slightly distorted square planar coordination environment, with two nitrogen atoms from two pyrazine carboxylic ligands and two oxygen atoms from carboxyl group. Cu2 is coordinated by two nitrogen atoms from pyrazine groups and one bromido ligand. The bond length of Cu1—N1 is 1.99 Å, while the bond length of Cu2—N2 is 2.00 Å. The Cu1 ion is more stable than the Cu2 ion. The bond length of Cu1—O1 and Cu1—O1A is 1.945 Å. The bond lengths of C1—O1 and C2—O2 are 1.264 Å and 1.263 Å, respectively. The formula unit is linked to an one-dimensional chain through the coordination of the Cu atoms. The coordination-mode of the organic title ligand is very similar to a related Ni(II) complex [14].
Acknowledgements
This work was supported by the National Nature Science Foundation of China (Grant No. 51602007, Grant No. 51673157), the Natural Scence Basic Research Plan in Shaanxi Province of China (Grant No. 2017 JM5134, Grant No. 2018 JM5047), the Science Research Foundation of Xijing University (Grant No. XJ17B07) and the National Students’ Platform for Innovation and Entrepreneurship Training Program (Grant No. 201812715003).
References
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©2018 Zhang Cuihong et al., published by De Gruyter, Berlin/Boston
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Articles in the same Issue
- Cover and Frontmatter
- Crystal structure of bis(6,6′-((ethane-1,2-diylbis(azanylylidene))bis(methanylylidene))bis(2,4-diiodophenolato)-κ4N,N′,O,O′)cer(IV), C32H20CeI8N4O4
- Crystal structure of (6,6′-((ethane-1,2-diylbis(azanylylidene))bis(methanylylidene))bis(2-chlorophenolato-κ2N,O))copper(II), C16H12Cl2CuN2O2
- Crystal structure of poly[aqua-(μ3-4-(pyridin-4-yl)isophthalato-κ4O,O′:O′′:O′′′)-(μ2-5-carboxy-2-(pyridin-4-yl)benzoato-κ2O:O′)samarium(III)], C26H18N2O9Sm
- Crystal structure of 1-{4-[(2-hydroxy-5-nitrobenzylidene)amino]phenyl}ethanone O-methyl oxime, C16H15N3O4
- Synthesis and crystal structure of bis(μ2-acetato-κ2O:O′)-bis(μ2-1-(8-(2-oxidophenyl)-3,6-dioxa-2,7-diazaocta-1,7-dien-1-yl)naphthalen-2-olato-κ6O:O,N,N′,O′:O′)trizinc(II), C44H38Zn3N4O12
- Synthesis and crystal structure of bis(μ2-acetato-κ2O:O′)–bis(μ2–(8-(2-oxidophenyl)-3,6-dioxa-2,7-diazaocta-1,7-dien-1-yl)naphthalen-2-olato-κ6O:O,N,N′,O′:O′)tricobalt(II), C44H38Co3N4O12
- Crystal structure of poly[aqua(μ4-2,2′,2′′-nitrilotriacetato-κ6O1,O3,O5:O2:O4:O6)-yttrium(III)], C6H8NO7Y
- Crystal structure of catena-poly[bromido-(μ2-pyrazine-2-carboxylato-κ3N:N′,O)copper(II)], C10H6N4Cu2O4Br
- Crystal structure of poly[dodekais(μ2-2,6-difluorobenzoato-κ2O:O′)-bis((μ3-hexamethylenetetramine-κ3N:N′:N′′)hexacopper(II)], C48H30N4O12F12Cu3
- Crystal structure of methyl 4-(4-hydroxy-3-nitrophenyl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, C18H18N2O6
- Crystal structure of N-phenyl-2-(propan-2-ylidene)hydrazine-1-carbothioamide, C10H13N3S
- Crystal structure of sodium caesium zinc phosphate, NaCsZnP2O7
- Crystal structure of methyl 4-(4-isopropylphenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylate, C23H29NO3
- Crystal structure of catena-poly[bis(μ2-1,3-di(4H-1,2,4-triazol-4-yl)benzene-κ2N:N′)-bis(thiocyanato-κ1N)cobalt(II), C22H16CoN14S2
- Crystal structure of catena-poly[(μ2-2,5-di(pyridin-3-yl)-1,3,4-thiadiazole-κ2N:N′)-bis(2,5-di(pyridin-3-yl)-1,3,4-thiadiazole-κ1N)-bis(thiocyanato-κ1N)cobalt(II)], C38H24CoN14S5
- Crystal structure of bis(2,5-di(pyridin-2-yl)-1,3,4-thiadiazole-κ2N,N′)-bis(thiocyanato-κ1N)cobalt(II), C26H16CoN10S4
- Crystal structure of (bis((1H-benzo[d]imidazol2-yl)methyl)amine-κ3N,N′,N′′)-(pyridine-2,6-dicarboxylato-κ3N,O,O′)zinc(II) — methanol — water (1/2/1), C25H28N6O7Zn
- Crystal structure of catena-poly[triaqua-(μ2-5-methoxy-isophthalato-κ2O:O′)copper(II)], C9H12CuO8
- Structure and photochromism of 1-[2-methyl-5-phenyl-3-thienyl]-2-[2-methyl-5-(4-chlorophenyl)-3-thienyl]3,3,4,4,5,5-hexafluorocyclopent-1-ene, C27H16ClF6S2
- Crystal structure of methyl 4-(3-phenoxyphenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, C26H27NO4
- Crystal structure of poly[diaqua-di-μ2-hydroxido-(μ4-3,4,5,6-tetrafluoro-1,2-phthalato-κ4O:O′:O′′:O′′′)-(μ4-3,4,5,6-tetrafluoro-1,2-phthalato-κ5O,O:O′:O′′:O′′′)disamarium(III)] – bipyridine (2/1), C21H11NF16O12Sm2
- Crystal structural of diethyl 4-(3,5-dibromo-4-hydroxyphenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate, C19H21Br2NO5
- Crystal structure of catena-poly[tetraaqua(μ2-4-(1H-imidazol-1-yl)pyridine-κ2N:N′))zinc(II)] thiophene-2,5-dicarboxylate, C14H17N3O8ZnS
- Crystal structure of (20S)-20-(dimethylamino)-3-(tigloylamino)-5α-pregn-2,16-dien-4-one, C28H42N2O2
- Crystal structure of rac-trans-N,N′-bis(3,5-diiodosalicylidene)-1,2-cyclohexanediamine, C20H18I4N2O2
- Crystal structure of 2-bromo-7-(4-(dimethylamino)phenyl)-10-methylacridin-9 (10H)-one, C22H19BrN2O
- Crystal structure of catena-poly[(μ2-pentane-1,5-dicarboxylato-κ2O:O′)-(μ2-2-[(1H-imidazol-1-yl)methyl]-6-methyl-1H-benzimidazole-κ2N:N′)zinc(II)] sesquihydrate, C17H21N4O5.5Zn
- Crystal structure of ethyl 2-amino-4-(3,4-difluorophenyl)-5-oxo-4H,5H-pyrano[3,2-c] chromene-3-carboxylate, C21H15F2NO5
- Crystal structure of 9-(5-methylthiophen-2-yl)-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione, C18H18O3S
- Crystal structure of [5,5′-((propane-1,3-diylbis(azanylylidene))bis(ethan-1-yl-2-ylidene))bis(3-(ethoxycarbonyl)-2,4-dimethylpyrrol-1-ido)-κ4N,N′,N′′,N′′′]nickel(II), C23H30N4O4Ni
- Crystal structure of (Z)-2-(2-(1,3-dioxo-1-(phenylamino)butan-2-ylidene)hydrazineyl) terephthalic acid-dimethylsulfoxide (1/1), C18H15N3O6 ⋅ C2H6OS
- Crystal structure of (2E,4Z)-dimethyl 4-((phenylamino)methylene)pent-2-enedioate, C14H15N1O4
- Crystal structure of (2Z,2′Z)-1,1′-(pyridine-2,6-diyl) bis(3-hydroxy-3-phenylprop-2-en-1-one), C23H17NO4
- Crystal structure of ethyl 2-amino-4-(3-bromophenyl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carboxylate, C21H16BrNO5
- Crystal structure of bis(μ2-3,5-dichloro-2-oxidobenzoato-κ4O,O′:O′,O′′)-hexakis(μ2-pivalato-κ2O:O′)-bis(pivalato-κ2O,O′)-tetrakis(1,10-phenanthroline-κ2N,N′)tetragadolinium(III), C102H108Cl4Gd4N8O22
- Crystal structure of catena-poly[aqua-bis(formato-κ1O)-(μ2-1,1′-(oxybis(1,4-phenylene))-bis(1H-1,2,4-triazole)-κ2N:N′)copper(II)]hydrate, C18H16CuN6O6
- Crystal structure of 5-bromo-2-(naphthalen-6-yl)pyridine, C15H10BrN
- Crystal structure of N-(4-methoxybenzyl)pyridazin-3-amine- a rare Z′ = 4 structure, C12H13N3O
- Crystal structure of bis(perchlorato-κ1O)-bis(3,4,5-trimethoxy-N-(pyridin-2-yl)benzamide-κ2N,O)copper(II), C32H30Cl2CuN4O16
- Crystal structure of methyl 4-methyl-2,5-di(pyridin-4-yl)-1H-pyrrole-3-carboxylate monohydrate C17H15N3O2⋅H2O
- Crystal structure of dimethyl 5-(10-(methoxycarbonyl)anthracen-9-yl) isophthalate,C26H20O6
- Crystal structure of tert-butyl (R)-(1-(benzylamino)-3-methoxy-1-oxopropan-2-yl)carbamate, C16H24N2O4
- Crystal structure of aqua-bis(1,5-dimethyl-2-phenyl-4-(((E)-4-pyridylmethylene)amino)pyrazolidin-3-one-κN)-(nitrato-κO)-(nitrato-κ2O,O′)zinc(II), C34H34N10O9Zn
- Crystal structure of catena-poly[dichlorido-(μ2-1,5-dimethyl-2-phenyl-4-((pyridin-4-ylmethylene)amino)-1,2-dihydro-3H-pyrazol-3-one-κ2N:O)cobalt(II)] – methanol (1/1), C18H20Cl2CoN4O2
- Crystal structure of poly[diaqua-bis(μ2-1-(4-(1H-imidazol-1-yl)benzyl)-1H-1,2,4-triazole-κ2N:N′)manganese(II)]bis(2-carboxybenzoate) dihydrate, MnC40H40N10O12
- The crystal structure of 4-((3,4-dichlorobenzylidene)amino)-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one, C18H15Cl2N3O
- Crystal structure of bis(2-methoxy-6-((2-(pyrimidin-2-yl)hydrazono)methyl)phenolato-κ3N,N′,O)iron(III) perchlorate, C24H22N8O8ClFe
- The crystal structure of 2-[4-hydroxy-3-methoxyphenyl]-4,4,5,5-tetramethylimidazoline-3-oxide-1-oxyl, C14H19N2O4
- Crystal structure of diaqua-bis(3,3-dimethylacrylato-κ2O,O′)zinc(II), C10H18ZnO6
- Crystal structure of dichloro-tetrakis[(E)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol-κN]cadmium (II), C60H74CdCl6N12O4
- Crystal structure of (20R)-20,25-epoxy-dammaran-3,12-dione, C30H48O3
- Crystal structure of (E)-3′,6′-bis(ethylamino)-2′,7′-dimethyl-2-((pyridin-2-ylmethylene)amino)spiro[isoindoline-1,9′-xanthen]-3-one, C32H31N5O2
- The crystal structure of 2-(4-fluorophenyl)-1,3,4-oxadiazole, C8H5FN2O
- Crystal structure of (2,2′-bipyridine-κ2N,N′)bis(tri(p-tolyl)phosphine-κP)copper(I) tetrafluoroborate – 4,4′-bipyridine (2/1), C57H54BCuF4N3P2
- The crystal structure of 2,6-dimethyl-3,5-dinitrocyclohexa-2,5-diene-1,4-dione, C8H6N2O6
- The crystal structure of 2,3-dimethyl-1,4-dinitrobenzene – a Z′ = 4 structure, C8H8N2O4
- Crystal structure of [(1,2-η)-1,2,3,4,5-pentamethyl-cyclopenta-2,4-dien-1-yl] (1,4,10,13-tetraoxa-7,16-diazacyclooctadecane-κ6N2,O4) rubidium (I), [Rb(diaza-18-crown-6)]Cp*, C22H41N2O4Rb
- Crystal structure of 2-(4-fluorophenyl)-N-phenyl-2-(phenylamino)ethanesulfonamide – toluene (1/0.5), C23.5H23FN2O2S
- Crystal structure of pyrene-4-aldehyde, C17H10O
- Crystal structure of 2-(furan-2-yl)-5-methyl-1,3-dioxane-5-carboxylic acid, C10H12O5
- Crystal structure of 2-(4-chlorophenyl)-3-phenyl-1,8-naphthyridine, C20H13N2Cl
- Crystal structure and photochromism of 1-(2-ethyl-5-formylthiophen-3yl)-2-(2-cyano-1,5-dimethyl-4-pyrrl)-3,3,4,4,5,5-hexafluorocyclopent-1-ene, C19H14F6N2OS
- Crystal structure of 2-(4-bromophenyl)-1,3-dimethyl-1H-perimidin-3-ium iodide, C19H16BrIN2
- Crystal structure of 2-(4-(dimethylamino)phenyl)-10-methylacridin-9(10H)-one, C22H20N2O
- Crystal structure of 4-(acetoxymethyl)-6-(3-acetyl-3-(4-fluorophenyl)thioureido)cyclohex-4-ene-1,2,3-triyl triacetate, C24H26FN2O9S
Articles in the same Issue
- Cover and Frontmatter
- Crystal structure of bis(6,6′-((ethane-1,2-diylbis(azanylylidene))bis(methanylylidene))bis(2,4-diiodophenolato)-κ4N,N′,O,O′)cer(IV), C32H20CeI8N4O4
- Crystal structure of (6,6′-((ethane-1,2-diylbis(azanylylidene))bis(methanylylidene))bis(2-chlorophenolato-κ2N,O))copper(II), C16H12Cl2CuN2O2
- Crystal structure of poly[aqua-(μ3-4-(pyridin-4-yl)isophthalato-κ4O,O′:O′′:O′′′)-(μ2-5-carboxy-2-(pyridin-4-yl)benzoato-κ2O:O′)samarium(III)], C26H18N2O9Sm
- Crystal structure of 1-{4-[(2-hydroxy-5-nitrobenzylidene)amino]phenyl}ethanone O-methyl oxime, C16H15N3O4
- Synthesis and crystal structure of bis(μ2-acetato-κ2O:O′)-bis(μ2-1-(8-(2-oxidophenyl)-3,6-dioxa-2,7-diazaocta-1,7-dien-1-yl)naphthalen-2-olato-κ6O:O,N,N′,O′:O′)trizinc(II), C44H38Zn3N4O12
- Synthesis and crystal structure of bis(μ2-acetato-κ2O:O′)–bis(μ2–(8-(2-oxidophenyl)-3,6-dioxa-2,7-diazaocta-1,7-dien-1-yl)naphthalen-2-olato-κ6O:O,N,N′,O′:O′)tricobalt(II), C44H38Co3N4O12
- Crystal structure of poly[aqua(μ4-2,2′,2′′-nitrilotriacetato-κ6O1,O3,O5:O2:O4:O6)-yttrium(III)], C6H8NO7Y
- Crystal structure of catena-poly[bromido-(μ2-pyrazine-2-carboxylato-κ3N:N′,O)copper(II)], C10H6N4Cu2O4Br
- Crystal structure of poly[dodekais(μ2-2,6-difluorobenzoato-κ2O:O′)-bis((μ3-hexamethylenetetramine-κ3N:N′:N′′)hexacopper(II)], C48H30N4O12F12Cu3
- Crystal structure of methyl 4-(4-hydroxy-3-nitrophenyl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, C18H18N2O6
- Crystal structure of N-phenyl-2-(propan-2-ylidene)hydrazine-1-carbothioamide, C10H13N3S
- Crystal structure of sodium caesium zinc phosphate, NaCsZnP2O7
- Crystal structure of methyl 4-(4-isopropylphenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylate, C23H29NO3
- Crystal structure of catena-poly[bis(μ2-1,3-di(4H-1,2,4-triazol-4-yl)benzene-κ2N:N′)-bis(thiocyanato-κ1N)cobalt(II), C22H16CoN14S2
- Crystal structure of catena-poly[(μ2-2,5-di(pyridin-3-yl)-1,3,4-thiadiazole-κ2N:N′)-bis(2,5-di(pyridin-3-yl)-1,3,4-thiadiazole-κ1N)-bis(thiocyanato-κ1N)cobalt(II)], C38H24CoN14S5
- Crystal structure of bis(2,5-di(pyridin-2-yl)-1,3,4-thiadiazole-κ2N,N′)-bis(thiocyanato-κ1N)cobalt(II), C26H16CoN10S4
- Crystal structure of (bis((1H-benzo[d]imidazol2-yl)methyl)amine-κ3N,N′,N′′)-(pyridine-2,6-dicarboxylato-κ3N,O,O′)zinc(II) — methanol — water (1/2/1), C25H28N6O7Zn
- Crystal structure of catena-poly[triaqua-(μ2-5-methoxy-isophthalato-κ2O:O′)copper(II)], C9H12CuO8
- Structure and photochromism of 1-[2-methyl-5-phenyl-3-thienyl]-2-[2-methyl-5-(4-chlorophenyl)-3-thienyl]3,3,4,4,5,5-hexafluorocyclopent-1-ene, C27H16ClF6S2
- Crystal structure of methyl 4-(3-phenoxyphenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, C26H27NO4
- Crystal structure of poly[diaqua-di-μ2-hydroxido-(μ4-3,4,5,6-tetrafluoro-1,2-phthalato-κ4O:O′:O′′:O′′′)-(μ4-3,4,5,6-tetrafluoro-1,2-phthalato-κ5O,O:O′:O′′:O′′′)disamarium(III)] – bipyridine (2/1), C21H11NF16O12Sm2
- Crystal structural of diethyl 4-(3,5-dibromo-4-hydroxyphenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate, C19H21Br2NO5
- Crystal structure of catena-poly[tetraaqua(μ2-4-(1H-imidazol-1-yl)pyridine-κ2N:N′))zinc(II)] thiophene-2,5-dicarboxylate, C14H17N3O8ZnS
- Crystal structure of (20S)-20-(dimethylamino)-3-(tigloylamino)-5α-pregn-2,16-dien-4-one, C28H42N2O2
- Crystal structure of rac-trans-N,N′-bis(3,5-diiodosalicylidene)-1,2-cyclohexanediamine, C20H18I4N2O2
- Crystal structure of 2-bromo-7-(4-(dimethylamino)phenyl)-10-methylacridin-9 (10H)-one, C22H19BrN2O
- Crystal structure of catena-poly[(μ2-pentane-1,5-dicarboxylato-κ2O:O′)-(μ2-2-[(1H-imidazol-1-yl)methyl]-6-methyl-1H-benzimidazole-κ2N:N′)zinc(II)] sesquihydrate, C17H21N4O5.5Zn
- Crystal structure of ethyl 2-amino-4-(3,4-difluorophenyl)-5-oxo-4H,5H-pyrano[3,2-c] chromene-3-carboxylate, C21H15F2NO5
- Crystal structure of 9-(5-methylthiophen-2-yl)-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione, C18H18O3S
- Crystal structure of [5,5′-((propane-1,3-diylbis(azanylylidene))bis(ethan-1-yl-2-ylidene))bis(3-(ethoxycarbonyl)-2,4-dimethylpyrrol-1-ido)-κ4N,N′,N′′,N′′′]nickel(II), C23H30N4O4Ni
- Crystal structure of (Z)-2-(2-(1,3-dioxo-1-(phenylamino)butan-2-ylidene)hydrazineyl) terephthalic acid-dimethylsulfoxide (1/1), C18H15N3O6 ⋅ C2H6OS
- Crystal structure of (2E,4Z)-dimethyl 4-((phenylamino)methylene)pent-2-enedioate, C14H15N1O4
- Crystal structure of (2Z,2′Z)-1,1′-(pyridine-2,6-diyl) bis(3-hydroxy-3-phenylprop-2-en-1-one), C23H17NO4
- Crystal structure of ethyl 2-amino-4-(3-bromophenyl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carboxylate, C21H16BrNO5
- Crystal structure of bis(μ2-3,5-dichloro-2-oxidobenzoato-κ4O,O′:O′,O′′)-hexakis(μ2-pivalato-κ2O:O′)-bis(pivalato-κ2O,O′)-tetrakis(1,10-phenanthroline-κ2N,N′)tetragadolinium(III), C102H108Cl4Gd4N8O22
- Crystal structure of catena-poly[aqua-bis(formato-κ1O)-(μ2-1,1′-(oxybis(1,4-phenylene))-bis(1H-1,2,4-triazole)-κ2N:N′)copper(II)]hydrate, C18H16CuN6O6
- Crystal structure of 5-bromo-2-(naphthalen-6-yl)pyridine, C15H10BrN
- Crystal structure of N-(4-methoxybenzyl)pyridazin-3-amine- a rare Z′ = 4 structure, C12H13N3O
- Crystal structure of bis(perchlorato-κ1O)-bis(3,4,5-trimethoxy-N-(pyridin-2-yl)benzamide-κ2N,O)copper(II), C32H30Cl2CuN4O16
- Crystal structure of methyl 4-methyl-2,5-di(pyridin-4-yl)-1H-pyrrole-3-carboxylate monohydrate C17H15N3O2⋅H2O
- Crystal structure of dimethyl 5-(10-(methoxycarbonyl)anthracen-9-yl) isophthalate,C26H20O6
- Crystal structure of tert-butyl (R)-(1-(benzylamino)-3-methoxy-1-oxopropan-2-yl)carbamate, C16H24N2O4
- Crystal structure of aqua-bis(1,5-dimethyl-2-phenyl-4-(((E)-4-pyridylmethylene)amino)pyrazolidin-3-one-κN)-(nitrato-κO)-(nitrato-κ2O,O′)zinc(II), C34H34N10O9Zn
- Crystal structure of catena-poly[dichlorido-(μ2-1,5-dimethyl-2-phenyl-4-((pyridin-4-ylmethylene)amino)-1,2-dihydro-3H-pyrazol-3-one-κ2N:O)cobalt(II)] – methanol (1/1), C18H20Cl2CoN4O2
- Crystal structure of poly[diaqua-bis(μ2-1-(4-(1H-imidazol-1-yl)benzyl)-1H-1,2,4-triazole-κ2N:N′)manganese(II)]bis(2-carboxybenzoate) dihydrate, MnC40H40N10O12
- The crystal structure of 4-((3,4-dichlorobenzylidene)amino)-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one, C18H15Cl2N3O
- Crystal structure of bis(2-methoxy-6-((2-(pyrimidin-2-yl)hydrazono)methyl)phenolato-κ3N,N′,O)iron(III) perchlorate, C24H22N8O8ClFe
- The crystal structure of 2-[4-hydroxy-3-methoxyphenyl]-4,4,5,5-tetramethylimidazoline-3-oxide-1-oxyl, C14H19N2O4
- Crystal structure of diaqua-bis(3,3-dimethylacrylato-κ2O,O′)zinc(II), C10H18ZnO6
- Crystal structure of dichloro-tetrakis[(E)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol-κN]cadmium (II), C60H74CdCl6N12O4
- Crystal structure of (20R)-20,25-epoxy-dammaran-3,12-dione, C30H48O3
- Crystal structure of (E)-3′,6′-bis(ethylamino)-2′,7′-dimethyl-2-((pyridin-2-ylmethylene)amino)spiro[isoindoline-1,9′-xanthen]-3-one, C32H31N5O2
- The crystal structure of 2-(4-fluorophenyl)-1,3,4-oxadiazole, C8H5FN2O
- Crystal structure of (2,2′-bipyridine-κ2N,N′)bis(tri(p-tolyl)phosphine-κP)copper(I) tetrafluoroborate – 4,4′-bipyridine (2/1), C57H54BCuF4N3P2
- The crystal structure of 2,6-dimethyl-3,5-dinitrocyclohexa-2,5-diene-1,4-dione, C8H6N2O6
- The crystal structure of 2,3-dimethyl-1,4-dinitrobenzene – a Z′ = 4 structure, C8H8N2O4
- Crystal structure of [(1,2-η)-1,2,3,4,5-pentamethyl-cyclopenta-2,4-dien-1-yl] (1,4,10,13-tetraoxa-7,16-diazacyclooctadecane-κ6N2,O4) rubidium (I), [Rb(diaza-18-crown-6)]Cp*, C22H41N2O4Rb
- Crystal structure of 2-(4-fluorophenyl)-N-phenyl-2-(phenylamino)ethanesulfonamide – toluene (1/0.5), C23.5H23FN2O2S
- Crystal structure of pyrene-4-aldehyde, C17H10O
- Crystal structure of 2-(furan-2-yl)-5-methyl-1,3-dioxane-5-carboxylic acid, C10H12O5
- Crystal structure of 2-(4-chlorophenyl)-3-phenyl-1,8-naphthyridine, C20H13N2Cl
- Crystal structure and photochromism of 1-(2-ethyl-5-formylthiophen-3yl)-2-(2-cyano-1,5-dimethyl-4-pyrrl)-3,3,4,4,5,5-hexafluorocyclopent-1-ene, C19H14F6N2OS
- Crystal structure of 2-(4-bromophenyl)-1,3-dimethyl-1H-perimidin-3-ium iodide, C19H16BrIN2
- Crystal structure of 2-(4-(dimethylamino)phenyl)-10-methylacridin-9(10H)-one, C22H20N2O
- Crystal structure of 4-(acetoxymethyl)-6-(3-acetyl-3-(4-fluorophenyl)thioureido)cyclohex-4-ene-1,2,3-triyl triacetate, C24H26FN2O9S