Abstract
C40H32N2O12, triclinic,
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: | Yellow block |
| Size: | 0.45 × 0.36 × 0.23 mm |
| Wavelength: | MoKα radiation (0.71073 Å) |
| μ: | 0.11 mm−1 |
| Diffractometer, scan mode: | Bruker D8 Venture Ims3.0, φ and ω |
| θ max, completeness: | 27.1°, >99% |
| N(hkl)measured, N(hkl)unique, R int: | 10499, 3690, 0.019 |
| Criterion for I obs, N(hkl)gt: | I obs > 2 σ(I obs), 3355 |
| N(param)refined: | 253 |
| Programs: | Bruker [1], Olex2 [2], SHELX [3, 4] |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).
| Atom | x | y | z | U iso*/U eq |
|---|---|---|---|---|
| O1 | 0.94867 (10) | 0.89829 (11) | 0.82872 (7) | 0.0307 (2) |
| H1 | 0.988601 | 0.983549 | 0.813317 | 0.046* |
| O2 | 0.76496 (10) | 0.62978 (10) | 0.86385 (6) | 0.02723 (19) |
| H2 | 0.691517 | 0.554641 | 0.872857 | 0.041* |
| O3 | 0.39419 (11) | 0.55105 (10) | 0.80231 (7) | 0.0303 (2) |
| H3 | 0.279595 | 0.542886 | 0.785407 | 0.045* |
| O4 | 0.93414 (11) | 1.15262 (11) | 0.75616 (7) | 0.0308 (2) |
| O5 | 0.37962 (10) | 1.00223 (10) | 0.65973 (6) | 0.02491 (18) |
| C1 | 0.76339 (14) | 0.86129 (14) | 0.79752 (8) | 0.0220 (2) |
| C2 | 0.66863 (14) | 0.72389 (13) | 0.81530 (8) | 0.0218 (2) |
| C3 | 0.47640 (14) | 0.68537 (13) | 0.78222 (8) | 0.0228 (2) |
| C4 | 0.37994 (14) | 0.78123 (14) | 0.73176 (8) | 0.0242 (2) |
| H4 | 0.250514 | 0.754696 | 0.710396 | 0.029* |
| C5 | 0.47835 (14) | 0.91592 (14) | 0.71381 (8) | 0.0218 (2) |
| C6 | 0.66897 (14) | 0.96069 (13) | 0.74618 (8) | 0.0211 (2) |
| C7 | 0.76319 (15) | 1.10366 (14) | 0.72543 (8) | 0.0238 (2) |
| C8 | 0.65104 (16) | 1.18496 (14) | 0.66733 (9) | 0.0261 (2) |
| H8 | 0.706366 | 1.278759 | 0.650909 | 0.031* |
| C9 | 0.46889 (15) | 1.13137 (13) | 0.63547 (8) | 0.0226 (2) |
| C10 | 0.34468 (15) | 1.19984 (13) | 0.57115 (8) | 0.0236 (2) |
| C11 | 0.15473 (16) | 1.18406 (16) | 0.57044 (10) | 0.0312 (3) |
| H11 | 0.103759 | 1.129688 | 0.612183 | 0.037* |
| C12 | 0.04065 (18) | 1.24813 (18) | 0.50852 (11) | 0.0380 (3) |
| H12 | −0.088265 | 1.237280 | 0.508262 | 0.046* |
| C13 | 0.11336 (18) | 1.32789 (16) | 0.44700 (9) | 0.0335 (3) |
| H13 | 0.034755 | 1.372028 | 0.405184 | 0.040* |
| C14 | 0.30180 (18) | 1.34258 (15) | 0.44712 (9) | 0.0306 (3) |
| H14 | 0.351984 | 1.396443 | 0.404949 | 0.037* |
| C15 | 0.41719 (16) | 1.27905 (15) | 0.50847 (8) | 0.0273 (2) |
| H15 | 0.545846 | 1.289312 | 0.507957 | 0.033* |
| O6 | 1.03629 (12) | 1.48787 (11) | 0.75882 (7) | 0.0342 (2) |
| H6A | 0.969 (2) | 1.545 (2) | 0.7971 (12) | 0.057* |
| H6B | 1.005930 | 1.382993 | 0.757191 | 0.051* |
| N1 | 0.62077 (14) | 1.36142 (12) | 0.92075 (7) | 0.0287 (2) |
| C16 | 0.44584 (18) | 1.28870 (16) | 0.90706 (10) | 0.0341 (3) |
| H16 | 0.352437 | 1.335375 | 0.874825 | 0.041* |
| C17 | 0.39335 (17) | 1.14928 (15) | 0.93723 (9) | 0.0309 (3) |
| H17 | 0.267047 | 1.103724 | 0.925832 | 0.037* |
| C18 | 0.52599 (15) | 1.07617 (13) | 0.98425 (8) | 0.0231 (2) |
| C19 | 0.70821 (16) | 1.15344 (15) | 1.00010 (9) | 0.0286 (2) |
| H19 | 0.804382 | 1.110495 | 1.032873 | 0.034* |
| C20 | 0.74785 (17) | 1.29329 (15) | 0.96769 (9) | 0.0295 (3) |
| H20 | 0.872601 | 1.343588 | 0.979544 | 0.035* |
Source of material
Cocrystals of Baicalein (5,6,7-trihydroxy-2-phenyl-4H-chromen-4-one) and 4,4′-bipyridine were prepared by dissolving Baicalein (27 mg, 0.1 mmol) and 4,4′-bipyridine (31 mg, 0.2 mmol) in 10 mL acetonitrile. Then the solution vials were treated with shaking or ultrasonic method at 35–40 min, then filter. The solvents were evaporated from the filtrate at ambient temperature, yellow block crystals were obtained after seven days.
Experimental details
Absorption corrections were applied by using multi-scan program [1]. Using Olex2 [2], the structure was solved with the ShelXT [3] structure solution program and refined with the ShelXL [4] refinement package.
Comment
Baicalein (BE) is one of the most important bioactive flavonoids isolated from the well-known traditional Chinese medicine called “Huang Qin”. Cocrystals of Baicalein with caffffeine (CCDC: 1522878, KAMQOH), and theophylline (CCDC: 1522877, KAMQIB) [5], Baicalein nicotinamide (CCDC: 893495, GAZWUB) [6], baicalein-temozolomide (CCDC: 1842673, JIJWIL) [7], baicalein-oxaliplatin (CCDC: 1998709, UJIHUT) [8] were obtained. The O–H…N heterosynthon can be the most competitive synthon in cocrystallizing phenolic compounds. Zhang’s group [9] chose 4,4′-bipyridine (BPY) as conformer. The structural analyses show that baicalein molecules are linked by water molecules in the same fashion, by hydrogen bonding patterns as BE·2BPY·H2O (CCDC: 1561425, ODAJOW). BE·2BPY·H2O was prepared as follows: Baicalein (13.5 mg, 0.05 mmol) and 4,4′-bipyridine dihydrate (19.2 mg, 0.10 mmol) were combined in 8.0 mL ethanol and 2.0 mL acetone and stirred at 25 °C for 2 h. The solvents were evaporated from the filtrate at ambient temperature and yellow block crystals were obtained after 10 days. However, in another solvent, acetonitrile, we obtained a co-crystal of a different composition (2BE·BPY·2H2O, CCDC: 2171759, LAYTOY).
The asymmetric unit of the title structure contais one half of a bipyridine moleule, one baicaleine, and one water molecule (see the figure). The 4,4′-bipyridine molecules in the title structure are π–π stacked and arranged along the 1D baicalein water chain to which they are linked via classical intermolecular hydrogen bonds [O7–H7–N2 (1.87 Å) and O8–H8B–N4 (1.97 Å)] on one side, generating a zipper-type architecture. On the other side of the hydrogen-bonded BE/water layer chain, the 4,4′-bipyridine molecules are linked to baicalein molecules via non-classical hydrogen bonds [C12–H12–N1 (2.69 Å) and C13–H13–N3 (2.59 Å)].
Funding source: Zhejiang Province Basic Public Welfare Research Project
Award Identifier / Grant number: LGJ20B060001
-
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
-
Research funding: This work was supported by the Zhejiang Province Basic Public Welfare Research Project (LGJ20B060001).
-
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
References
1. Bruker. Apex3 v. 2016.9–0 and SAINT v. 8.37A; Bruker Axs Inc.: Madison, Wisconsin, USA, 2016.Suche in Google Scholar
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. 2009, 42, 339–341; https://doi.org/10.1107/s0021889808042726.Suche in Google Scholar
3. Sheldrick, G. M. SHELXTL – integrated space-group and crystal-structure determination. Acta Crystallogr. 2015, A71, 3–8; https://doi.org/10.1107/s2053273314026370.Suche in Google Scholar PubMed PubMed Central
4. Sheldrick, G. M. Crystal structure refinement with SHELXL. Acta Crystallogr. 2015, C71, 3–8; https://doi.org/10.1107/s2053229614024218.Suche in Google Scholar
5. Zhu, B., Zhang, Q., Wang, J. R., Mei, X. Cocrystals of baicalein with higher solubility and enhanced bioavailability. Cryst. Growth Des. 2017, 17, 1893–1901; https://doi.org/10.1021/acs.cgd.6b01863.Suche in Google Scholar
6. Sowa, M., Ślepokura, K., Matczak-Jon, E. A 1: 1 cocrystal of baicalein with nicotinamide. Acta Crystallogr. 2012, C68, 262–265; https://doi.org/10.1107/S0108270112024456.Suche in Google Scholar PubMed
7. Li, J. M., Dai, X. L., Li, G. J., Lu, T. B., Chen, J. M. Constructing anti-glioma drug combination with optimized properties through cocrystallization. Cryst. Growth Des. 2018, 18, 4270–4274; https://doi.org/10.1021/acs.cgd.8b00807.Suche in Google Scholar
8. Yin, H. M., Wu, N., Zhou, B. J., Hong, M. H., Zhu, B., Qi, M. H., Ren, G. B. Slow-release drug-drug cocrystals of oxaliplatin with flavonoids: delaying hydrolysis and reducing toxicity. Cryst. Growth Des. 2020, 21, 75–85; https://doi.org/10.1021/acs.cgd.0c00622.Suche in Google Scholar
9. Liu, L. X., Su, X., Zhang, Y. N., Yin, H. M., Zhang, Q., Feng, Y. R., Guo, Y. X., Zou, D. Y., Liu, Y. L. A cocrystal of baicalein and 4,4′-bipyridine with zipper-type architecture. J. Chem. Crystallogr. 2021, 51, 363–371; https://doi.org/10.1007/s10870-020-00853-2.Suche in Google Scholar
© 2022 the author(s), published by De Gruyter, Berlin/Boston
This work is licensed under the Creative Commons Attribution 4.0 International License.
Artikel in diesem Heft
- Frontmatter
- New Crystal Structures
- The crystal structure of 3-(1-(2-((5-methylthiophen-2-yl)methylene)hydrazinyl)ethylidene)chroman-2,4-dione, C17H14N2O3S
- Crystal structure of chlorido-(η 6-toluene)(5,5′-dimethyl-2,2′-bipyridine-κ2 N,N′)ruthenium(II) hexafluoridophosphate(V) ─ acetone (1/1) C22H26ClN2ORuPF6
- Crystal structure of 4-(((2-(3-(1-(3-(3-cyanophenyl)-6-oxopyridazin-1(6H)-yl)ethyl)phenyl) pyrimidin-5-yl)oxy)methyl)-1-methylpiperidin-1-ium chloride monohydrate, C30H33N6O2Cl
- The crystal structure of 2-chloro-N-((2-chlorophenyl)carbamoyl)nicotinamide, C13H9Cl2N3O2
- Crystal structure of 9-(t-butyl)-3,11-dihydro-6H-pyrazolo [1,5-a]pyrrolo[3′,2′:5,6]pyrido[4,3-d]pyrimidin-6-one hemihydrate, C30H32N10O3
- Crystal structure of di-μ2-hydroxido-tetrakis(6-methylpyridine-2-carboxylato-k2 N,O) diiron(III) trihydrate C28H32Fe2N4O13
- Crystal structure of catena-poly[qua-(μ2-2-aminoisophthalat-κ3 O,O′:O′′)(1,10-phenanthroline-κ2 N,N′)manganese(II)] C20H15MnN3O5
- Crystal structure of poly[(bis(isothiocyano)-bis(μ 2-(E)-N′-(pyridin-4-ylmethylene)isonicotinohydrazide))iron(II) – methanol – 1,4-dioxane (1/2/2), C36H44FeN10O8S2
- Crystal structure of (E)-N′-(1-(5-chloro-2-hydroxyphenyl)propylidene)-4-hydroxybenzohydrazide, C16H15ClN2O3
- Crystal structure of bis(μ2-benzoato-k2O:O′)-bis(μ2-benzoato-k3O,O′:O′)dinitrato-k2O,O′-bis(phenanthroline-k2 N,N′)dierbium(III), C52H36Er2N6O14
- Crystal structure of 4-ethyl-2-{[(4-nitrophenyl)methyl]sulfanyl}-6-oxo-1,6-dihydropyrimidine-5-carbonitrile, C14H12N4O3S
- Synthesis and crystal structure of 1-((3R,10S,13R,17S)-10,13-dimethyl-3- (phenylamino)hexadecahydro-1H-cyclopenta[α] phenanthren-17-yl)ethan-1-one, C27H39NO
- Crystal structre of 1,4-bis(bromomethyl)-2,3,5,6-tetramethylbenzene, C12H16Br2
- Crystal structure of 2-(adamantan-1-yl)-5-(3,5-dinitrophenyl)-1,3,4-oxadiazole, C18H18N4O5
- Crystal structure of (E)-N′-benzylidene-4-nitrobenzohydrazide – methanol (1/1), C15H15N3O4
- The crystal structure of 3-(2-bromophenyl)-1,5-di-p-tolylpentane-1,5-dione, C25H23BrO2
- Crystal structure of catena-poly[(μ 2-4,4′-bipyridine-κ2 N:N′)-bis(4-bromobenzoato-κ1 O)zinc(II)], C24H16Br2N2O4Zn
- Crystal structure of 1,1′-(1,2-ethanediyl)bis(pyridin-1-ium) bis(1,2-dicyanoethene-1,2-dithiolato-κ2 S:S)zinc(II), C20H14N6ZnS4
- Crystal structure of pentacarbonyl-(μ2-propane-1,3-dithiolato-κ4 S:S,S′:S′)-(diphenyl(o-tolyl)phosphine-κ1 P)diiron (Fe-Fe), C27H23Fe2O5PS2
- The crystal structure of the cocrystal 4-hydroxy-3,5-dimethoxybenzoic acid–pyrazine-2-carboxamide(1/1), C14H15N3O6
- The crystal structure of dichlorido-bis((RS)-2-(4-chlorophenyl)-2-(1,2,4-triazol-1-ylmethyl)hexanenitrile-κ1 N)zinc(II), C30H34Cl4N8Zn
- Crystal structure of the cocrystal 2,4,6-triamino-1,3,5-triazine – 1H-isoindole-1,3(2H)-dione – methanol (1/1/1), C12H15N7O3
- The crystal structure of methyl 4-((3,5-di-tert-butyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl) benzoate, C23H28O3
- Crystal structure of (poly[µ2-(1H-pyrazol-1-yl)methyl]-1H-benzotriazole-κ 2 N:N)-(nitrato-κ 2 O:O′) silver(I), C9H8AgN7O3
- Crystal structure of tetraaqua-bis[4-(1H-1,2,4-triazol-1-yl)benzoato-k1 N]cadmium(II), C18H20CdN6O8
- The crystal structure of diaqua-bis(pyrazolo[1,5-a]pyrimidine-3-carboxylato-κ2N,O)nickel(II) dihydrate, C14H16N6O8Ni
- Crystal structure of poly[μ2-aqua-aqua-(μ2-1,3-di(1H-imidazol-1-yl)propane-κ2 N:N′)-(μ2-4,4′-(1H-1,2,4-triazole-3,5-diyl)dibenzoato-κ2 O:O′)-(μ4-4,4′-(1H-1,2,4-triazole-3,5-diyl)dibenzoato-κ5 O,O′:O″:O′″:O′″)dicobalt(II)] – water – dimethylformamide (1/1/1) C44H43N11O12Co2
- Crystal structure of N-((Z)-amino(((E)-amino(phenylamino)methylene) amino)methylene)benzenaminium chloride – benzo[f]isoquinolino[3,4-b][1,8]naphthyridine – tetrahydrofurane (1/2/2), C60H54ClN11O2
- The crystal structure of Chrysosplenol D, C18H16O8
- Crystal structure of poly[deca aqua-bis(μ 4-2-(triazol-1-yl)-benzene-1,3,5-tricarboxylato)- bis(μ 5-2-(triazol-1-yl)-benzene-1,3-dicarboxylato-5-carboxyl acid) pentamanganese(II)] dihydrate, C44H42Mn5N12O36
- Synthesis and crystal structure of (E)-1-(4-(((E)-3-(tert-butyl)-2-hydroxybenzylidene)amino)phenyl)ethan-1-one O-methyl oxime, C20H24N2O2
- The crystal structure of 4,4′-dichloro-6,6′-dimethoxy-2,2′,3,3′,5,5′- hexanitroazobenzene, C14H6N8O14Cl2
- Crystal structure of N 2,N 4-dimesitylpentane-2,4-diamine, C23H34N2
- Crystal structure of (1,4,7,10,13,16-hexaoxacyclooctadecane-κ 6O6)potassium(2-methylphenylamino)ethyl-2-methylphenylamide ammoniate (1/3.5), [K(18-crown-6)](o-CH3C6H4)NH(CH2)2N(o-CH3C6H4) 3.5 NH3, C28H53.5KN5.5O6
- The crystal structure of N′,N″,2-tris((E)-5-chloro-2-hydroxybenzylidene)hydrazine-1-carbohydrazonhydrazide hydrochloride – methanol (1/3), C25H30Cl4N6O6
- Crystal structure of (E)-7-bromo-2-(3,5-dimethoxybenzylidene)-3,4-dihydronaphthalen-1(2H)-one, C19H17BrO3
- Crystal structure of (E)-N′-(1-(5-chloro-2-hydroxyphenyl) ethylidene)-4-hydroxybenzohydrazide, C15H13ClN2O3
- {2-(((2-aminoethyl)imino)methyl)-6-bromophenolato-κ3 N,N′,O}iron(III) nitrate, C18H20Br2FeN5O5
- Crystal structure of 2-(tert-pentyl)anthracene-9,10-dione, C19H18O2
- Crystal structure of 5,5′-(1,4-phenylene)bis(1H-imidazol-3-ium) bis(2-(2-(carboxymethyl)phenyl)acetate), C32H30N4O8
- Crystal structure of N 2,N 6-bis(2-(((E)-naphthalen-1-ylmethylene)amino)phenyl)pyridine-2,6-dicarboxamide, C41H29N5O2
- The crystal structure of 3-amino-1,2,4-triazolium 2,4,5-trinitroimidazolate, C5H5O6N9
- Hydrogen bonded dimers in the crystal structure of 2-chloro-N-(phenylcarbamoyl)nicotinamide, C26H20Cl2N6O4
- The crystal structure of 4,4′-bipyridine-5,6,7-trihydroxy-2-phenyl-4H-chromen-4-one-water(1/2/2), C40H32N2O12
- Crystal structure of N,N'-bis(4-fluoro-salicylaldehyde)-3,6-dioxa-1,8-diaminooctane, C20H22F2N2O4
- Crystal structure of 3-(1,3-dinitropropan-2-yl)-4H-chromen-4-one, C12H10N2O6
- The crystal structure of (4-(2-bromoethoxy)-phenyl)(phenyl)methanone, C15H13BrO2
- Crystal structure of (E)-7-bromo-2-(4-methoxybenzylidene)-3,4-dihydronaphthalen-1(2H)-one, C18H15BrO2
- Crystal structure of dichlorido-tetrakis((E)-(RS)-1-(2,4-dichlorophenyl)-4,4-dimethyl-2-(1,2,4-triazol-1-yl)pent-1-en-3-ol-κ 1 N)cadmium(II), C60H68O4N12Cl10Cd
- Crystal structure of diaqua-diphenanthroline-κ2 N,N′-bis(μ2-2-carboxy-3,4,5,6-tetrafluorobenzoato-κ2 O:O′)-bis(μ2-tetrafluorophthalato-κ3 O,O′:O′)didysprosium(III) – phenanthroline (1/2), C80H38Dy2F16N8O18
- Crystal structure of bis(μ2-2-oxido-2-phenylacetato-κ3 O,O′:O′)-bis(N-oxido-benzamide-κ2 O,O′)-bis(propan-2-olato-κ1 O)dititanium(IV), C36H38N2O12Ti2
- Crystal structure of poly[diaqua-(μ2-1H-benzo[d][1,2,3]triazole-5-carboxylato-κ2 O:O′)(μ2-oxalato-κ4O,O:O″,O′″)europium(III)] monohydrate, C9H10N3O9Eu
- Crystal structure of bis((N-methyl-2-oxyethyl)amine)-bis(μ 2-N,N,N-tris(2-oxoethyl)amine)-bis(isopropoxy)-bis(μ 3-oxo)tetratitanium(IV)– isopropanol (1/2), C34H76N4O16Ti4
- Synthesis and crystal structure of ethyl 4-((4-iodobenzyl)amino)benzoate, C16H16INO2
- Crystal structure of (Z)-2-(tert-butyl)-5-((5-(tert- butyl)-2H-pyrrol-2-ylidene)(mesityl)methyl)-1H-pyrrole, C26H34N2
- Crystal structure of dimethylammonium poly[μ4-1,1′-(1,4- phenylenebis(methylene))bis(1H-pyrazole-3,5-dicarboxylato-κ6 N,O:O′:N′,O″:O‴) manganese(II)], C22H26MnN6O8
Artikel in diesem Heft
- Frontmatter
- New Crystal Structures
- The crystal structure of 3-(1-(2-((5-methylthiophen-2-yl)methylene)hydrazinyl)ethylidene)chroman-2,4-dione, C17H14N2O3S
- Crystal structure of chlorido-(η 6-toluene)(5,5′-dimethyl-2,2′-bipyridine-κ2 N,N′)ruthenium(II) hexafluoridophosphate(V) ─ acetone (1/1) C22H26ClN2ORuPF6
- Crystal structure of 4-(((2-(3-(1-(3-(3-cyanophenyl)-6-oxopyridazin-1(6H)-yl)ethyl)phenyl) pyrimidin-5-yl)oxy)methyl)-1-methylpiperidin-1-ium chloride monohydrate, C30H33N6O2Cl
- The crystal structure of 2-chloro-N-((2-chlorophenyl)carbamoyl)nicotinamide, C13H9Cl2N3O2
- Crystal structure of 9-(t-butyl)-3,11-dihydro-6H-pyrazolo [1,5-a]pyrrolo[3′,2′:5,6]pyrido[4,3-d]pyrimidin-6-one hemihydrate, C30H32N10O3
- Crystal structure of di-μ2-hydroxido-tetrakis(6-methylpyridine-2-carboxylato-k2 N,O) diiron(III) trihydrate C28H32Fe2N4O13
- Crystal structure of catena-poly[qua-(μ2-2-aminoisophthalat-κ3 O,O′:O′′)(1,10-phenanthroline-κ2 N,N′)manganese(II)] C20H15MnN3O5
- Crystal structure of poly[(bis(isothiocyano)-bis(μ 2-(E)-N′-(pyridin-4-ylmethylene)isonicotinohydrazide))iron(II) – methanol – 1,4-dioxane (1/2/2), C36H44FeN10O8S2
- Crystal structure of (E)-N′-(1-(5-chloro-2-hydroxyphenyl)propylidene)-4-hydroxybenzohydrazide, C16H15ClN2O3
- Crystal structure of bis(μ2-benzoato-k2O:O′)-bis(μ2-benzoato-k3O,O′:O′)dinitrato-k2O,O′-bis(phenanthroline-k2 N,N′)dierbium(III), C52H36Er2N6O14
- Crystal structure of 4-ethyl-2-{[(4-nitrophenyl)methyl]sulfanyl}-6-oxo-1,6-dihydropyrimidine-5-carbonitrile, C14H12N4O3S
- Synthesis and crystal structure of 1-((3R,10S,13R,17S)-10,13-dimethyl-3- (phenylamino)hexadecahydro-1H-cyclopenta[α] phenanthren-17-yl)ethan-1-one, C27H39NO
- Crystal structre of 1,4-bis(bromomethyl)-2,3,5,6-tetramethylbenzene, C12H16Br2
- Crystal structure of 2-(adamantan-1-yl)-5-(3,5-dinitrophenyl)-1,3,4-oxadiazole, C18H18N4O5
- Crystal structure of (E)-N′-benzylidene-4-nitrobenzohydrazide – methanol (1/1), C15H15N3O4
- The crystal structure of 3-(2-bromophenyl)-1,5-di-p-tolylpentane-1,5-dione, C25H23BrO2
- Crystal structure of catena-poly[(μ 2-4,4′-bipyridine-κ2 N:N′)-bis(4-bromobenzoato-κ1 O)zinc(II)], C24H16Br2N2O4Zn
- Crystal structure of 1,1′-(1,2-ethanediyl)bis(pyridin-1-ium) bis(1,2-dicyanoethene-1,2-dithiolato-κ2 S:S)zinc(II), C20H14N6ZnS4
- Crystal structure of pentacarbonyl-(μ2-propane-1,3-dithiolato-κ4 S:S,S′:S′)-(diphenyl(o-tolyl)phosphine-κ1 P)diiron (Fe-Fe), C27H23Fe2O5PS2
- The crystal structure of the cocrystal 4-hydroxy-3,5-dimethoxybenzoic acid–pyrazine-2-carboxamide(1/1), C14H15N3O6
- The crystal structure of dichlorido-bis((RS)-2-(4-chlorophenyl)-2-(1,2,4-triazol-1-ylmethyl)hexanenitrile-κ1 N)zinc(II), C30H34Cl4N8Zn
- Crystal structure of the cocrystal 2,4,6-triamino-1,3,5-triazine – 1H-isoindole-1,3(2H)-dione – methanol (1/1/1), C12H15N7O3
- The crystal structure of methyl 4-((3,5-di-tert-butyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl) benzoate, C23H28O3
- Crystal structure of (poly[µ2-(1H-pyrazol-1-yl)methyl]-1H-benzotriazole-κ 2 N:N)-(nitrato-κ 2 O:O′) silver(I), C9H8AgN7O3
- Crystal structure of tetraaqua-bis[4-(1H-1,2,4-triazol-1-yl)benzoato-k1 N]cadmium(II), C18H20CdN6O8
- The crystal structure of diaqua-bis(pyrazolo[1,5-a]pyrimidine-3-carboxylato-κ2N,O)nickel(II) dihydrate, C14H16N6O8Ni
- Crystal structure of poly[μ2-aqua-aqua-(μ2-1,3-di(1H-imidazol-1-yl)propane-κ2 N:N′)-(μ2-4,4′-(1H-1,2,4-triazole-3,5-diyl)dibenzoato-κ2 O:O′)-(μ4-4,4′-(1H-1,2,4-triazole-3,5-diyl)dibenzoato-κ5 O,O′:O″:O′″:O′″)dicobalt(II)] – water – dimethylformamide (1/1/1) C44H43N11O12Co2
- Crystal structure of N-((Z)-amino(((E)-amino(phenylamino)methylene) amino)methylene)benzenaminium chloride – benzo[f]isoquinolino[3,4-b][1,8]naphthyridine – tetrahydrofurane (1/2/2), C60H54ClN11O2
- The crystal structure of Chrysosplenol D, C18H16O8
- Crystal structure of poly[deca aqua-bis(μ 4-2-(triazol-1-yl)-benzene-1,3,5-tricarboxylato)- bis(μ 5-2-(triazol-1-yl)-benzene-1,3-dicarboxylato-5-carboxyl acid) pentamanganese(II)] dihydrate, C44H42Mn5N12O36
- Synthesis and crystal structure of (E)-1-(4-(((E)-3-(tert-butyl)-2-hydroxybenzylidene)amino)phenyl)ethan-1-one O-methyl oxime, C20H24N2O2
- The crystal structure of 4,4′-dichloro-6,6′-dimethoxy-2,2′,3,3′,5,5′- hexanitroazobenzene, C14H6N8O14Cl2
- Crystal structure of N 2,N 4-dimesitylpentane-2,4-diamine, C23H34N2
- Crystal structure of (1,4,7,10,13,16-hexaoxacyclooctadecane-κ 6O6)potassium(2-methylphenylamino)ethyl-2-methylphenylamide ammoniate (1/3.5), [K(18-crown-6)](o-CH3C6H4)NH(CH2)2N(o-CH3C6H4) 3.5 NH3, C28H53.5KN5.5O6
- The crystal structure of N′,N″,2-tris((E)-5-chloro-2-hydroxybenzylidene)hydrazine-1-carbohydrazonhydrazide hydrochloride – methanol (1/3), C25H30Cl4N6O6
- Crystal structure of (E)-7-bromo-2-(3,5-dimethoxybenzylidene)-3,4-dihydronaphthalen-1(2H)-one, C19H17BrO3
- Crystal structure of (E)-N′-(1-(5-chloro-2-hydroxyphenyl) ethylidene)-4-hydroxybenzohydrazide, C15H13ClN2O3
- {2-(((2-aminoethyl)imino)methyl)-6-bromophenolato-κ3 N,N′,O}iron(III) nitrate, C18H20Br2FeN5O5
- Crystal structure of 2-(tert-pentyl)anthracene-9,10-dione, C19H18O2
- Crystal structure of 5,5′-(1,4-phenylene)bis(1H-imidazol-3-ium) bis(2-(2-(carboxymethyl)phenyl)acetate), C32H30N4O8
- Crystal structure of N 2,N 6-bis(2-(((E)-naphthalen-1-ylmethylene)amino)phenyl)pyridine-2,6-dicarboxamide, C41H29N5O2
- The crystal structure of 3-amino-1,2,4-triazolium 2,4,5-trinitroimidazolate, C5H5O6N9
- Hydrogen bonded dimers in the crystal structure of 2-chloro-N-(phenylcarbamoyl)nicotinamide, C26H20Cl2N6O4
- The crystal structure of 4,4′-bipyridine-5,6,7-trihydroxy-2-phenyl-4H-chromen-4-one-water(1/2/2), C40H32N2O12
- Crystal structure of N,N'-bis(4-fluoro-salicylaldehyde)-3,6-dioxa-1,8-diaminooctane, C20H22F2N2O4
- Crystal structure of 3-(1,3-dinitropropan-2-yl)-4H-chromen-4-one, C12H10N2O6
- The crystal structure of (4-(2-bromoethoxy)-phenyl)(phenyl)methanone, C15H13BrO2
- Crystal structure of (E)-7-bromo-2-(4-methoxybenzylidene)-3,4-dihydronaphthalen-1(2H)-one, C18H15BrO2
- Crystal structure of dichlorido-tetrakis((E)-(RS)-1-(2,4-dichlorophenyl)-4,4-dimethyl-2-(1,2,4-triazol-1-yl)pent-1-en-3-ol-κ 1 N)cadmium(II), C60H68O4N12Cl10Cd
- Crystal structure of diaqua-diphenanthroline-κ2 N,N′-bis(μ2-2-carboxy-3,4,5,6-tetrafluorobenzoato-κ2 O:O′)-bis(μ2-tetrafluorophthalato-κ3 O,O′:O′)didysprosium(III) – phenanthroline (1/2), C80H38Dy2F16N8O18
- Crystal structure of bis(μ2-2-oxido-2-phenylacetato-κ3 O,O′:O′)-bis(N-oxido-benzamide-κ2 O,O′)-bis(propan-2-olato-κ1 O)dititanium(IV), C36H38N2O12Ti2
- Crystal structure of poly[diaqua-(μ2-1H-benzo[d][1,2,3]triazole-5-carboxylato-κ2 O:O′)(μ2-oxalato-κ4O,O:O″,O′″)europium(III)] monohydrate, C9H10N3O9Eu
- Crystal structure of bis((N-methyl-2-oxyethyl)amine)-bis(μ 2-N,N,N-tris(2-oxoethyl)amine)-bis(isopropoxy)-bis(μ 3-oxo)tetratitanium(IV)– isopropanol (1/2), C34H76N4O16Ti4
- Synthesis and crystal structure of ethyl 4-((4-iodobenzyl)amino)benzoate, C16H16INO2
- Crystal structure of (Z)-2-(tert-butyl)-5-((5-(tert- butyl)-2H-pyrrol-2-ylidene)(mesityl)methyl)-1H-pyrrole, C26H34N2
- Crystal structure of dimethylammonium poly[μ4-1,1′-(1,4- phenylenebis(methylene))bis(1H-pyrazole-3,5-dicarboxylato-κ6 N,O:O′:N′,O″:O‴) manganese(II)], C22H26MnN6O8