Abstract
C15H40N4O8, monoclinic, Cc (no. 9), a = 25.986(3) Å, b = 8.3450(6) Å, c = 21.1358(15) Å, β = 90.877(6)°, V = 4582.9(6) Å3, Z = 8, Rgt(F) = 0.0357, wRref(F2) = 0.0916, T = 296(2) K.

The asymmetric unit of the title crystal structure is shown in the figure. 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: | Colorless plate |
| Size: | 0.38 × 0.16 × 0.05 mm |
| Wavelength: | Mo Kα radiation (0.71073 Å) |
| μ: | 0.09 mm−1 |
| Diffractometer, scan mode: | APEX2, φ and ω |
| θmax, completeness: | 23.7°, >99% |
| N(hkl)measured, N(hkl)unique, Rint: | 8322, 4217, 0.019 |
| Criterion for Iobs, N(hkl)gt: | Iobs > 2 σ(Iobs), 3517 |
| N(param)refined: | 523 |
| Programs: | SHELX [1, 2] , Bruker [3] |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).
| Atom | x | y | z | Uiso*/Ueq |
|---|---|---|---|---|
| O1 | 0.26820(10) | −0.0439(3) | 0.09179(12) | 0.0720(7) |
| H1 | 0.2891(15) | −0.095(5) | 0.117(2) | 0.108* |
| O1W | 0.17440(12) | 0.6009(3) | 0.20479(13) | 0.0707(7) |
| H1WA | 0.1627(19) | 0.612(5) | 0.2425(11) | 0.106* |
| H1WB | 0.1867(18) | 0.693(3) | 0.195(2) | 0.106* |
| N1 | 0.04595(11) | 0.7994(3) | 0.01959(13) | 0.0502(7) |
| C1 | −0.00372(14) | 0.7119(4) | 0.03113(18) | 0.0567(9) |
| H1A | −0.0124 | 0.6506 | −0.0065 | 0.068* |
| H1B | 0.0021 | 0.6361 | 0.0653 | 0.068* |
| O2 | 0.19009(10) | 0.0554(3) | 0.09360(11) | 0.0655(7) |
| O2W | 0.13140(11) | 0.6658(5) | −0.36468(18) | 0.0973(10) |
| H2WA | 0.1478(18) | 0.744(4) | −0.380(3) | 0.146* |
| H2WB | 0.1520(16) | 0.593(5) | −0.352(3) | 0.146* |
| N2 | −0.19118(11) | 1.1797(3) | 0.77811(13) | 0.0471(6) |
| C2 | −0.04944(17) | 0.8138(5) | 0.0475(2) | 0.0770(12) |
| H2A | −0.0549 | 0.8943 | 0.0150 | 0.092* |
| H2B | −0.0429 | 0.8685 | 0.0874 | 0.092* |
| O3 | 0.21937(10) | −0.0886(3) | 0.17489(12) | 0.0702(7) |
| C3 | −0.09696(17) | 0.7109(7) | 0.0529(2) | 0.0890(14) |
| H3A | −0.1258 | 0.7770 | 0.0634 | 0.133* |
| H3B | −0.1036 | 0.6580 | 0.0133 | 0.133* |
| H3C | −0.0916 | 0.6322 | 0.0855 | 0.133* |
| O3W | 0.37202(12) | 0.1012(5) | −0.11960(14) | 0.0940(10) |
| H3WA | 0.372(2) | 0.145(6) | −0.1563(14) | 0.141* |
| H3WB | 0.3970(15) | 0.035(5) | −0.116(2) | 0.141* |
| N3 | 0.28407(13) | 0.0776(4) | −0.04013(16) | 0.0777(10) |
| H3D | 0.2833 | 0.0383 | −0.0025 | 0.093* |
| H3E | 0.3118 | 0.0721 | −0.0616 | 0.093* |
| C4 | 0.06118(15) | 0.8990(4) | 0.07693(16) | 0.0558(9) |
| H4A | 0.0923 | 0.9576 | 0.0672 | 0.067* |
| H4B | 0.0343 | 0.9772 | 0.0842 | 0.067* |
| O4W | 0.06654(13) | 0.6502(5) | −0.25316(18) | 0.1129(12) |
| H4WA | 0.0948(15) | 0.667(7) | −0.273(3) | 0.169* |
| H4WB | 0.061(2) | 0.549(3) | −0.259(3) | 0.169* |
| N4 | 0.24370(13) | 0.2051(4) | −0.12278(15) | 0.0691(9) |
| H4C | 0.2167 | 0.2488 | −0.1392 | 0.083* |
| H4D | 0.2715 | 0.1994 | −0.1442 | 0.083* |
| O4 | 0.15079(12) | 0.3434(4) | −0.17025(13) | 0.0825(8) |
| C5 | 0.07044(16) | 0.8069(4) | 0.13744(17) | 0.0639(10) |
| H5A | 0.1001 | 0.7376 | 0.1328 | 0.077* |
| H5B | 0.0408 | 0.7401 | 0.1461 | 0.077* |
| N5 | 0.20037(13) | 0.1544(4) | −0.03166(15) | 0.0693(9) |
| H5C | 0.1731 | 0.1979 | −0.0476 | 0.083* |
| H5D | 0.2000 | 0.1160 | 0.0061 | 0.083* |
| O5 | 0.06988(13) | 0.4249(5) | −0.16358(16) | 0.1065(12) |
| C6 | 0.07965(18) | 0.9213(5) | 0.19207(18) | 0.0758(12) |
| H6A | 0.0855 | 0.8612 | 0.2303 | 0.114* |
| H6B | 0.1093 | 0.9863 | 0.1837 | 0.114* |
| H6C | 0.0501 | 0.9888 | 0.1969 | 0.114* |
| N6 | 0.01729(12) | 0.6958(3) | −0.40152(15) | 0.0626(8) |
| H6D | 0.0455 | 0.6882 | −0.3799 | 0.075* |
| H6E | 0.0178 | 0.6902 | −0.4421 | 0.075* |
| O6 | 0.10500(11) | 0.2749(4) | −0.08837(13) | 0.0765(8) |
| H6 | 0.0760(11) | 0.291(6) | −0.071(2) | 0.115* |
| C7 | 0.08630(14) | 0.6728(4) | 0.00641(18) | 0.0552(9) |
| H7A | 0.0873 | 0.5981 | 0.0416 | 0.066* |
| H7B | 0.0757 | 0.6134 | −0.0310 | 0.066* |
| N7 | −0.06954(12) | 0.7299(4) | −0.40657(17) | 0.0736(9) |
| H7C | −0.0984 | 0.7448 | −0.3882 | 0.088* |
| H7D | −0.0685 | 0.7242 | −0.4472 | 0.088* |
| O7 | 0.01666(10) | 0.3090(3) | −0.03477(12) | 0.0679(7) |
| C8 | 0.13982(16) | 0.7357(6) | −0.0035(2) | 0.0802(12) |
| H8A | 0.1395 | 0.8089 | −0.0392 | 0.096* |
| H8B | 0.1509 | 0.7951 | 0.0337 | 0.096* |
| N8 | −0.02793(12) | 0.7246(4) | −0.31044(15) | 0.0693(8) |
| H8C | 0.0001 | 0.7171 | −0.2885 | 0.083* |
| H8D | −0.0568 | 0.7378 | −0.2918 | 0.083* |
| O8 | −0.02207(11) | 0.4235(4) | −0.11735(14) | 0.0883(9) |
| H8 | 0.0089(10) | 0.427(7) | −0.131(3) | 0.132* |
| C9 | 0.17736(18) | 0.6027(6) | −0.0157(2) | 0.0919(14) |
| H9A | 0.2110 | 0.6470 | −0.0218 | 0.138* |
| H9B | 0.1783 | 0.5311 | 0.0199 | 0.138* |
| H9C | 0.1668 | 0.5449 | −0.0529 | 0.138* |
| O9 | −0.06723(12) | 0.3627(4) | −0.03617(14) | 0.0941(10) |
| C10 | 0.04008(17) | 0.9141(4) | −0.03604(17) | 0.0626(10) |
| H10A | 0.0158 | 0.9972 | −0.0246 | 0.075* |
| H10B | 0.0730 | 0.9655 | −0.0429 | 0.075* |
| O10 | −0.12304(10) | 0.2705(3) | 0.25737(12) | 0.0686(7) |
| C11 | 0.0222(2) | 0.8402(5) | −0.09755(18) | 0.0844(13) |
| H11A | 0.0478 | 0.7645 | −0.1119 | 0.101* |
| H11B | −0.0096 | 0.7820 | −0.0909 | 0.101* |
| O11 | −0.15950(10) | 0.3275(4) | 0.16466(13) | 0.0773(8) |
| C12 | 0.0135(3) | 0.9648(6) | −0.1470(2) | 0.122(2) |
| H12A | 0.0022 | 0.9146 | −0.1856 | 0.183* |
| H12B | −0.0122 | 1.0388 | −0.1331 | 0.183* |
| H12C | 0.0451 | 1.0214 | −0.1541 | 0.183* |
| O12 | −0.20531(9) | 0.3268(3) | 0.25178(11) | 0.0579(6) |
| H12 | −0.2299(12) | 0.353(5) | 0.2252(17) | 0.087* |
| C13 | −0.20440(14) | 1.0742(4) | 0.72163(15) | 0.0531(8) |
| H13A | −0.1750 | 1.0065 | 0.7130 | 0.064* |
| H13B | −0.2327 | 1.0046 | 0.7330 | 0.064* |
| C14 | −0.21912(16) | 1.1622(4) | 0.66153(16) | 0.0618(10) |
| H14A | −0.2514 | 1.2182 | 0.6673 | 0.074* |
| H14B | −0.1929 | 1.2410 | 0.6519 | 0.074* |
| C15 | −0.2245(2) | 1.0455(5) | 0.60743(19) | 0.0838(12) |
| H15A | −0.2338 | 1.1024 | 0.5695 | 0.126* |
| H15B | −0.1924 | 0.9912 | 0.6015 | 0.126* |
| H15C | −0.2507 | 0.9684 | 0.6169 | 0.126* |
| C16 | −0.23471(14) | 1.2950(4) | 0.79196(17) | 0.0522(9) |
| H16A | −0.2246 | 1.3599 | 0.8281 | 0.063* |
| H16B | −0.2388 | 1.3665 | 0.7561 | 0.063* |
| C17 | −0.28614(15) | 1.2209(5) | 0.8053(2) | 0.0705(11) |
| H17A | −0.2832 | 1.1515 | 0.8420 | 0.085* |
| H17B | −0.2972 | 1.1562 | 0.7695 | 0.085* |
| C18 | −0.32542(18) | 1.3491(6) | 0.8174(2) | 0.0919(14) |
| H18A | −0.3580 | 1.3003 | 0.8259 | 0.138* |
| H18B | −0.3147 | 1.4121 | 0.8532 | 0.138* |
| H18C | −0.3286 | 1.4168 | 0.7808 | 0.138* |
| C19 | −0.18125(16) | 1.0690(4) | 0.83360(16) | 0.0586(9) |
| H19A | −0.2121 | 1.0064 | 0.8404 | 0.070* |
| H19B | −0.1542 | 0.9948 | 0.8222 | 0.070* |
| C20 | −0.1660(2) | 1.1481(5) | 0.89538(19) | 0.0788(12) |
| H20A | −0.1348 | 1.2098 | 0.8896 | 0.095* |
| H20B | −0.1930 | 1.2212 | 0.9080 | 0.095* |
| C21 | −0.1572(2) | 1.0264(6) | 0.9462(2) | 0.1031(16) |
| H21A | −0.1476 | 1.0795 | 0.9849 | 0.155* |
| H21B | −0.1883 | 0.9664 | 0.9523 | 0.155* |
| H21C | −0.1302 | 0.9550 | 0.9340 | 0.155* |
| C22 | −0.14388(14) | 1.2812(4) | 0.76450(18) | 0.0553(9) |
| H22A | −0.1519 | 1.3493 | 0.7285 | 0.066* |
| H22B | −0.1376 | 1.3507 | 0.8006 | 0.066* |
| C23 | −0.09506(16) | 1.1932(6) | 0.7510(3) | 0.0903(14) |
| H23A | −0.1006 | 1.1208 | 0.7157 | 0.108* |
| H23B | −0.0850 | 1.1298 | 0.7877 | 0.108* |
| C24 | −0.05293(18) | 1.3086(7) | 0.7357(2) | 0.0986(15) |
| H24A | −0.0219 | 1.2503 | 0.7272 | 0.148* |
| H24B | −0.0627 | 1.3702 | 0.6991 | 0.148* |
| H24C | −0.0471 | 1.3791 | 0.7710 | 0.148* |
| C25 | 0.22351(14) | −0.0254(4) | 0.12147(16) | 0.0519(8) |
| C26 | 0.10875(18) | 0.3516(5) | −0.14343(19) | 0.0690(11) |
| C27 | −0.02480(17) | 0.3602(5) | −0.05995(19) | 0.0620(10) |
| C28 | −0.16055(15) | 0.3076(4) | 0.22337(18) | 0.0542(9) |
| C29 | 0.24250(16) | 0.1467(4) | −0.06488(18) | 0.0574(9) |
| C30 | −0.02670(14) | 0.7160(4) | −0.37248(18) | 0.0544(9) |
Source of material
1,2,4,5-tetrakis(4-carboxyphenyl)benzene and tetrapropylammonium hydroxide (30% aqueous solution) were dissolved in small amount of water/ethanol (v/v, 1:2) to yield clean solution with the participation of guanidine hydrochloride (A. R.). After vigorous stirring for an hour, the solution was set aside to generate colorless plate crystals of the title compound after about 2 weeks. The aromatic acid was not present in the obtained crystalline phase. It can be concluded that bicarbonate should be derived from carbon dioxide during the stirring process.
Experimental details
Hydrogen atoms cound to carbon and nitrogen atoms are introduced by a riding model. The coordinates of the hydrogen atoms at water molecules are refined freely. Uiso parameters are fixed for all hydrogen atoms.
Comment
A guanidinium cation is a perfect triangular potentially hydrogen-bonded motif due to its planar configuration and multiple –NH2 groups. Obviously, if another hydrogen-bond acceptor can be provided to cooperate with guanidine/guanidinium, it can generate interesting hydrogen bonding schemes. The bicarbonate is clearly a good choice to interact with guanidine/guanidinium, because it can be regarded as excellent hydrogen bond donor and acceptor. In the related crystal structures involving aromatic acids and tetraalkylammonium ions [4], [5], [6], [7], it can be found these two ions were often used to construct hydrogen-bonded frameworks, but the title compound and its structure has not been reported before.
In the asymmetric unit of the title compound, there are four independent bicarbonate ions, four water molecules, two guanidine ions and two tetrapropylammonium cations. Observing the structure, it can be found that each two bicarbonate ions firstly connect with each other to form the dimer by the intermolecular O—H⋯O interactions, then the dimers link with two guanidine ions and four water molecules to yield the three-dimensional framework with cavities by different O—H⋯O and N—H⋯O contacts. To obtain the stable crystal structure, those cavities are filled with tetrapropylammonium cations to form the close-packed structure. Apparently, although guanidine and bicarbonate are very simple molecules, they still can construct complicated hydrogen-bonded network with the suitable conditions. Bond lengths and angles in the ions are all in the expected ranges [8].
Acknowledgements
This work was financially supported by Natural Science Foundation of China (21601053, U1604185) and Scientific and Technological Brainstorm Project of Henan Province (182102410012).
References
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©2018 Huahui Zeng et al., published by De Gruyter, Berlin/Boston
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
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- Cover and Frontmatter
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- Crystal structure of catena-poly[diaqua-bis(μ2-3,5-di(1H-1,2,4-triazol-1-yl)benzoate-κ2N:N′)cobalt(II))] 2.5 hydrate, C22H23CoN12O8.50
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- Crystal structure of guanidinium tetrapropylammonium bis(hydrogencarbonate) dihydrate, C15H40N4O8
- Crystal structure of (Z)-2-bromo-3-(3,5-di-tert-butyl-4-hydroxyphenyl)-1-phenylprop-2-en-1-one, C23H27BrO2
- Crystal structure of 2-(4-(4H-1,2,4-triazol-4-yl)phenyl)acetic acid, C10H9N3O4
- Crystal structure of 4,4′-(1,4-phenylene)bis(1H-imidazol-3-ium)bis(2-carboxybenzoate), C30H26N4O8
- Crystal structure of 4,4′-(4,10-diphenyl-4,10-dihydropyreno[4,5-d:9,10-d′]diimidazole-5,11-diyl)bis(N,N-diphenylaniline), C66H44N6
- Crystal structure of catena-poly[diaqua-bis(μ2-5-(3-(1H-imidazol-5-yl)phenyl)tetrazol-2-ido-κ2N:N′)cobalt(II)], C20H18CoN12O2
- Crystal structure of 1,3-dimethyl-2-(p-tolyl)-1H-perimidin-3-ium iodide 1.5 hydrate, C20H22IN2O1.5
- Crystal structure of 2-(4-methoxyphenyl)chromane, C16H16O2
- Crystal structure of poly[(μ2-2-carboxy-5-nitroisophthalato-κ2O:O′)-(μ2-4-((1H-imidazol-1-yl)methyl)pyridine-κ2N:N′)zinc(II)], C18H12N4O8Zn
- Crystal structure of bis(1-((2-ethyl-4-methyl-1H-imidazol-1-yl)methyl)-1H-benzo[d][1,2,3]triazole-κ2N:N′)tetraiodidodicadmium(II), [Cd2(C13H15N5)2I4]
- Crystal structure of tetramethylammonium bis(acetato-κ1O)-tetrakis(μ3-3-((hydroxyimino)methyl)-5-methoxy-2-oxidobenzoate-κ5O,O′:O′,N:O′′)tetrazinc(II) — N,N′-dimethylformamide — water (1/2/2), C62H96Zn4N10O28
- Crystal structure of poly[(μ4-5-tert-butylisophthalato-κ4O:O′:O′′:O′′′)-(1,3-dimethyl-2-imidazolidinone-κO)zinc(II)] C17H22N2O5Zn
- Crystal structure of [tris(2-benzimidazolylmethyl)amine-κ4N,N′,N′′,N′′′]-[(pyridine-2,6-dicarboxylato-κ2O,N)]cadmium(II)–methanol (1:3) C34H36CdN8O7
- The crystal structure of bis(1H-benzo[d]imidazol-2-amine-κN)-diiodidocadmium(II), C14H14CdI2N6
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- Crystal structure of 3β-methoxy-20α-dimethylamino-pregn-5-ene, C24H41NO
- Crystal structure of dimethyl 4,4′-oxydibenzoate, C16H14O5
- Crystal structure of catena-poly[diiodido-(μ2-1,5-dimethyl-2-phenyl-4-((pyridin-3-ylmethylene)amino)-1,2-dihydro-3H-pyrazol-3-one-κ2N:O)zinc(II)], C17H16I2N4OZn
- Crystal structure of 4-((E)-((E)-5-(2-fluorobenzylidene)-1-((4-fluorophenyl)sulfonyl)-4-oxopiperidin-3-ylidene)methyl)benzonitrile, C26H18F2N2O3S
- Crystal structure of bis(acetato-κ1O)-bis(1-(pyridin-2-yl)ethan-1-one oxime-κ2N,N′)zinc(II), C18H22N4O6Zn
- The crystal structure of 9-butoxy-2-(hydroxymethyl)-2H-imidazo[1,5-a]quinolin-10-ium bromide, C17H21O2N2Br
- Crystal stucture of 2-(tert-butyl)-6-(hydroxymethyl)-4-methylphenol, C12H18O2
- Crystal structure of catena-poly[(2-(5-chloroquinolin-8-yloxy)-1-(pyrrolidin-1-yl)ethan-1-one-κ3N,O,O′)-(dinitrato-κ2O,O′)mercury(II)], C15H15N4O8ClHg
- Crystal structure of dimethyl (3aS,6R,6aS,7S)-1H,3H,6H,7H-3a,6:7,9a-diepoxybenzo[de]isochromene-3a1,6a-dicarboxylate, C16H16O7
- The crystal structure of 2-(dimethoxymethyl)-4-(4-methylphenyl)-1H-imidazole—petroleum ether-chloroform (3/1), C27H33Cl3N4O4
- Crystal structure of 8-(trifluoromethyl)imidazo[1,2-a]pyridine-3-carbaldehyde, C9H5F3N2O
- The crystal structure of N,N-diethyl-4,6-bis(naphthalen-2-yloxy)-1,3,5-triazin-2-amine, C27H24N4O2
- Crystal structure of 5-bromo-7-chloro-3,3a-dihydrocyclopenta[b]chromen-1(2H)-one, C12H8BrClO2
- Crystal structure of 2-(bis(4-fluorophenyl)methylene)hydrazine-1-carbothioamide, C14H11F2N3S
Articles in the same Issue
- Cover and Frontmatter
- Crystal structure of di-μ2-aqua-tetraaqua-bis(4-(1H-1,2,4-triazol-1-yl)benzoato-κN)disodium(I) C18H24N6Na2O10
- Crystal structure of diaqua-bis(2-bromo-4-chloro-6-formylphenolato-κ2O,O′)cobalt(II), C16H16Cl2CrN3O7
- Crystal structure of catena-poly[(μ2-1-(4-(1H-pyrazol-1-yl)phenyl)ethan-1-one-κ2N:O)-bis(1,1,1-trifluoro-4-oxo-4-(thiophen-2-yl)but-2-en-2-olato-κ2O,O′)copper(II)], C27H18CuF6N2O5S2
- Crystal structure of ethyl 2-amino-4-(3,5-difluorophenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carboxylate, C18H15F2NO5
- Crystal structure of 5,5′-dimethoxy-2,2′-[1,1′-(ethylenedioxydinitrilo)diethylidyne]diphenol, C20H24N2O6
- Crystal structure of (E)-1-(4-(((E)-3,5-dichloro-2-hydroxybenzylidene)amino)phenyl)ethan-1-one O-methyl oxime, C16H14Cl2N2O2
- Crystal structure of 2,3,9,10,16,17,23,24-octakis(2,6-dimethylphenoxy)phthalocyanine - trichloromethane (1/2), C98H84Cl6N8O8
- Crystal structure of methyl 2-((1-(2-(methoxycarbonyl)benzyl)-1H-1,2,3-triazol-4-yl)methoxy)-1-naphthoate, C24H21N3O5
- Crystal structure of catena-poly[(μ2-3,3′-thiodipropionato-κ2O:O′)-(bipyridine-κ2N,N′)copper(II)] C16H16CuN2O4S
- Crystal structure of [4-chloro-2-(((2-((3-ethoxy-2-oxidobenzylidene)amino)phenyl)imino)(phenyl)methyl)phenolato-κ4N,N′,O,O′}nickel(II) - ethyl acetate (1/1), C32H29ClN2NiO5
- Crystal structure of (4-(4-chlorophenyl)-5-ethyl-1,3-dioxane-5-carboxylato-κ2O,O′)-(5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane-κ4N,N′,N′′,N′′′)nickel(II) perchlorate monohydrate, C29H52Cl2N4NiO9
- Crystal structure of ethyl 2-amino-4-(3,4-dimethylphenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carboxylate, C20H21NO5
- Structure and photochromism of 1,2-bis[2-methyl-5-(3-quinolyl)-3-thienyl]-3,3,4,4,5,5-hexafluorocyclopent-1-ene, C33H20F6N2S2
- Crystal structure of catena-poly[diaqua-bis(μ2-3,5-di(1H-1,2,4-triazol-1-yl)benzoate-κ2N:N′)cobalt(II))] 2.5 hydrate, C22H23CoN12O8.50
- The crystal structure of dichlorido(1,3-dimesityl-1H-3λ4-imidazol-2-yl)(morpholine-κN)palladium(IV), C25H33Cl2N3OPd
- Crystal structure of catena-poly[bis(4,4′-dipyridylaminium-kN)-(μ2-germanowolframato-κ2O:O′)-(2,2′-bipyridine-κ2N,N′)copper(II)] with a Keggin-type heteropolyoxoanion, [Cu(C10H8N2)(C10H10N3)2][GeW12O40] ⋅ H2O
- Crystal structure of diaqua-(N-(1-(pyrazin-2-yl)ethylidene)pyridin-1-ium-4-carbohydrazonate-κ3N,N′,O)-tris[nitrato-κ2O,O′)lanthanum(III), C12H15N8O12La
- The crystal structure of 2-hydroxy-4-((2-hydroxy-4-methoxy-3,6-dimethylbenzoyl)oxy)-3,6-dimethylbenzoic acid–methanol (1/1), C20H24O8
- Crystal structure of guanidinium tetrapropylammonium bis(hydrogencarbonate) dihydrate, C15H40N4O8
- Crystal structure of (Z)-2-bromo-3-(3,5-di-tert-butyl-4-hydroxyphenyl)-1-phenylprop-2-en-1-one, C23H27BrO2
- Crystal structure of 2-(4-(4H-1,2,4-triazol-4-yl)phenyl)acetic acid, C10H9N3O4
- Crystal structure of 4,4′-(1,4-phenylene)bis(1H-imidazol-3-ium)bis(2-carboxybenzoate), C30H26N4O8
- Crystal structure of 4,4′-(4,10-diphenyl-4,10-dihydropyreno[4,5-d:9,10-d′]diimidazole-5,11-diyl)bis(N,N-diphenylaniline), C66H44N6
- Crystal structure of catena-poly[diaqua-bis(μ2-5-(3-(1H-imidazol-5-yl)phenyl)tetrazol-2-ido-κ2N:N′)cobalt(II)], C20H18CoN12O2
- Crystal structure of 1,3-dimethyl-2-(p-tolyl)-1H-perimidin-3-ium iodide 1.5 hydrate, C20H22IN2O1.5
- Crystal structure of 2-(4-methoxyphenyl)chromane, C16H16O2
- Crystal structure of poly[(μ2-2-carboxy-5-nitroisophthalato-κ2O:O′)-(μ2-4-((1H-imidazol-1-yl)methyl)pyridine-κ2N:N′)zinc(II)], C18H12N4O8Zn
- Crystal structure of bis(1-((2-ethyl-4-methyl-1H-imidazol-1-yl)methyl)-1H-benzo[d][1,2,3]triazole-κ2N:N′)tetraiodidodicadmium(II), [Cd2(C13H15N5)2I4]
- Crystal structure of tetramethylammonium bis(acetato-κ1O)-tetrakis(μ3-3-((hydroxyimino)methyl)-5-methoxy-2-oxidobenzoate-κ5O,O′:O′,N:O′′)tetrazinc(II) — N,N′-dimethylformamide — water (1/2/2), C62H96Zn4N10O28
- Crystal structure of poly[(μ4-5-tert-butylisophthalato-κ4O:O′:O′′:O′′′)-(1,3-dimethyl-2-imidazolidinone-κO)zinc(II)] C17H22N2O5Zn
- Crystal structure of [tris(2-benzimidazolylmethyl)amine-κ4N,N′,N′′,N′′′]-[(pyridine-2,6-dicarboxylato-κ2O,N)]cadmium(II)–methanol (1:3) C34H36CdN8O7
- The crystal structure of bis(1H-benzo[d]imidazol-2-amine-κN)-diiodidocadmium(II), C14H14CdI2N6
- Crystal structure of tetrakis(1H-benzimidazol-2-amine)-κN)-bis(μ2-sulfonato-κ2O:O′)dizinc(II) - methanol (1/1), C30H36N12O10S2Zn2
- Crystal structure of 3β-methoxy-20α-dimethylamino-pregn-5-ene, C24H41NO
- Crystal structure of dimethyl 4,4′-oxydibenzoate, C16H14O5
- Crystal structure of catena-poly[diiodido-(μ2-1,5-dimethyl-2-phenyl-4-((pyridin-3-ylmethylene)amino)-1,2-dihydro-3H-pyrazol-3-one-κ2N:O)zinc(II)], C17H16I2N4OZn
- Crystal structure of 4-((E)-((E)-5-(2-fluorobenzylidene)-1-((4-fluorophenyl)sulfonyl)-4-oxopiperidin-3-ylidene)methyl)benzonitrile, C26H18F2N2O3S
- Crystal structure of bis(acetato-κ1O)-bis(1-(pyridin-2-yl)ethan-1-one oxime-κ2N,N′)zinc(II), C18H22N4O6Zn
- The crystal structure of 9-butoxy-2-(hydroxymethyl)-2H-imidazo[1,5-a]quinolin-10-ium bromide, C17H21O2N2Br
- Crystal stucture of 2-(tert-butyl)-6-(hydroxymethyl)-4-methylphenol, C12H18O2
- Crystal structure of catena-poly[(2-(5-chloroquinolin-8-yloxy)-1-(pyrrolidin-1-yl)ethan-1-one-κ3N,O,O′)-(dinitrato-κ2O,O′)mercury(II)], C15H15N4O8ClHg
- Crystal structure of dimethyl (3aS,6R,6aS,7S)-1H,3H,6H,7H-3a,6:7,9a-diepoxybenzo[de]isochromene-3a1,6a-dicarboxylate, C16H16O7
- The crystal structure of 2-(dimethoxymethyl)-4-(4-methylphenyl)-1H-imidazole—petroleum ether-chloroform (3/1), C27H33Cl3N4O4
- Crystal structure of 8-(trifluoromethyl)imidazo[1,2-a]pyridine-3-carbaldehyde, C9H5F3N2O
- The crystal structure of N,N-diethyl-4,6-bis(naphthalen-2-yloxy)-1,3,5-triazin-2-amine, C27H24N4O2
- Crystal structure of 5-bromo-7-chloro-3,3a-dihydrocyclopenta[b]chromen-1(2H)-one, C12H8BrClO2
- Crystal structure of 2-(bis(4-fluorophenyl)methylene)hydrazine-1-carbothioamide, C14H11F2N3S