Abstract
C19H27NO3, orthorhombic, P212121 (no. 19), a = 8.1564(16) Å, b = 16.937(3) Å, c = 24.686(10) Å, V = 3410.3(12) Å3, Z = 8, Rgt(F) = 0.0651, wRref(F2) = 0.1345, T = 153(2) K.

The 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: | Block, colorless |
| Size: | 0.21 × 0.20 × 0.160 mm |
| Wavelength: | Mo Kα radiation (0.71073 Å) |
| μ: | 0.08 mm−1 |
| Diffractometer, scan mode: | R-AXIS IV, φ and ω-scans |
| 2θmax, completeness: | 27.5°, >99% |
| N(hkl)measured, N(hkl)unique, Rint: | 14062, 7705, 0.041 |
| Criterion for Iobs, N(hkl)gt: | Iobs > 2 σ(Iobs), 7043 |
| N(param)refined: | 417 |
| Programs: | CrystalClear [1], SHELX [2] |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).
| Atom | x | y | z | Uiso*/Ueq |
|---|---|---|---|---|
| O1 | 0.1666(3) | 0.42724(18) | 0.70762(10) | 0.0375(7) |
| H1 | 0.2101 | 0.3938 | 0.7282 | 0.045* |
| O2 | 0.5540(3) | 0.34734(17) | 0.28128(10) | 0.0352(6) |
| H2 | 0.4591 | 0.3335 | 0.2721 | 0.042* |
| C1 | 0.2222(4) | 0.4127(2) | 0.65534(15) | 0.0286(8) |
| C2 | 0.1099(4) | 0.4113(2) | 0.61337(15) | 0.0299(8) |
| H2A | −0.0026 | 0.4220 | 0.6200 | 0.036* |
| C3 | 0.1642(4) | 0.3939(2) | 0.56140(14) | 0.0269(8) |
| H3 | 0.0864 | 0.3922 | 0.5328 | 0.032* |
| C4 | 0.3288(4) | 0.3787(2) | 0.54957(14) | 0.0223(7) |
| C5 | 0.4412(4) | 0.3836(2) | 0.59240(14) | 0.0232(7) |
| C6 | 0.3864(4) | 0.4002(2) | 0.64469(14) | 0.0258(7) |
| H6 | 0.4634 | 0.4029 | 0.6735 | 0.031* |
| C7 | 0.6230(4) | 0.3732(2) | 0.58389(13) | 0.0255(7) |
| H7A | 0.6668 | 0.3392 | 0.6131 | 0.031* |
| H7B | 0.6770 | 0.4253 | 0.5869 | 0.031* |
| C8 | 0.6679(4) | 0.3367(2) | 0.52940(14) | 0.0246(7) |
| H8A | 0.7856 | 0.3462 | 0.5221 | 0.030* |
| H8B | 0.6506 | 0.2789 | 0.5311 | 0.030* |
| C9 | 0.5666(4) | 0.3707(2) | 0.48323(13) | 0.0209(7) |
| H9 | 0.5821 | 0.4292 | 0.4821 | 0.025* |
| C10 | 0.3842(4) | 0.3522(2) | 0.49354(14) | 0.0215(7) |
| H10 | 0.3755 | 0.2933 | 0.4936 | 0.026* |
| C11 | 0.2741(4) | 0.3804(2) | 0.44686(14) | 0.0260(7) |
| H11A | 0.2743 | 0.4388 | 0.4459 | 0.031* |
| H11B | 0.1603 | 0.3628 | 0.4537 | 0.031* |
| C12 | 0.3303(4) | 0.3489(2) | 0.39144(14) | 0.0273(8) |
| H12A | 0.3132 | 0.2910 | 0.3901 | 0.033* |
| H12B | 0.2629 | 0.3731 | 0.3625 | 0.033* |
| C13 | 0.5113(4) | 0.3671(2) | 0.38102(14) | 0.0229(7) |
| C14 | 0.6135(4) | 0.3359(2) | 0.42859(14) | 0.0233(7) |
| H14 | 0.5881 | 0.2782 | 0.4311 | 0.028* |
| C15 | 0.7918(4) | 0.3411(2) | 0.40810(14) | 0.0270(8) |
| H15A | 0.8610 | 0.2999 | 0.4251 | 0.032* |
| H15B | 0.8396 | 0.3936 | 0.4159 | 0.032* |
| C16 | 0.7767(4) | 0.3273(2) | 0.34592(15) | 0.0316(8) |
| H16A | 0.8239 | 0.3722 | 0.3256 | 0.038* |
| H16B | 0.8343 | 0.2783 | 0.3351 | 0.038* |
| C17 | 0.5914(4) | 0.3202(2) | 0.33516(14) | 0.0269(8) |
| H17 | 0.5584 | 0.2635 | 0.3384 | 0.032* |
| C18 | 0.5353(4) | 0.4560(2) | 0.37116(15) | 0.0287(8) |
| H18A | 0.4942 | 0.4857 | 0.4024 | 0.043* |
| H18B | 0.4749 | 0.4718 | 0.3386 | 0.043* |
| H18C | 0.6522 | 0.4672 | 0.3662 | 0.043* |
| O3 | −0.2784(3) | 0.62577(16) | 0.70504(10) | 0.0306(6) |
| H3A | −0.2049 | 0.6355 | 0.7279 | 0.037* |
| O4 | 0.1323(3) | 0.63468(16) | 0.28115(9) | 0.0308(6) |
| H4 | 0.0469 | 0.6088 | 0.2744 | 0.037* |
| C19 | −0.0458(4) | 0.6299(2) | 0.64439(14) | 0.0257(7) |
| H19 | 0.0236 | 0.6469 | 0.6730 | 0.031* |
| C20 | −0.2094(4) | 0.6148(2) | 0.65495(14) | 0.0235(7) |
| C21 | −0.3103(4) | 0.5888(2) | 0.61324(15) | 0.0280(8) |
| H21 | −0.4224 | 0.5770 | 0.6199 | 0.034* |
| C22 | −0.2447(4) | 0.5802(2) | 0.56165(15) | 0.0263(7) |
| H22 | −0.3147 | 0.5634 | 0.5331 | 0.032* |
| C23 | −0.0802(4) | 0.5951(2) | 0.54997(14) | 0.0234(7) |
| C24 | 0.0188(4) | 0.6208(2) | 0.59268(14) | 0.0248(7) |
| C25 | 0.1959(5) | 0.6452(3) | 0.58398(15) | 0.0387(10) |
| H25A | 0.2644 | 0.6199 | 0.6122 | 0.046* |
| H25B | 0.2046 | 0.7031 | 0.5888 | 0.046* |
| C26 | 0.2648(4) | 0.6235(3) | 0.52854(14) | 0.0311(8) |
| H26A | 0.3643 | 0.6554 | 0.5213 | 0.037* |
| H26B | 0.2967 | 0.5671 | 0.5284 | 0.037* |
| C27 | 0.1390(4) | 0.6384(2) | 0.48406(13) | 0.0222(7) |
| H27 | 0.1013 | 0.6944 | 0.4863 | 0.027* |
| C28 | −0.0096(4) | 0.5834(2) | 0.49332(14) | 0.0240(7) |
| H28 | 0.0340 | 0.5282 | 0.4923 | 0.029* |
| C29 | −0.1364(4) | 0.5890(2) | 0.44789(14) | 0.0299(8) |
| H29A | −0.1882 | 0.6419 | 0.4488 | 0.036* |
| H29B | −0.2233 | 0.5492 | 0.4540 | 0.036* |
| C30 | −0.0595(5) | 0.5755(2) | 0.39185(14) | 0.0284(8) |
| H30A | −0.0187 | 0.5206 | 0.3894 | 0.034* |
| H30B | −0.1440 | 0.5829 | 0.3635 | 0.034* |
| C31 | 0.0812(4) | 0.6324(2) | 0.38191(14) | 0.0228(7) |
| C32 | 0.2079(4) | 0.6232(2) | 0.42772(13) | 0.0227(7) |
| H32 | 0.2417 | 0.5665 | 0.4273 | 0.027* |
| C33 | 0.3568(4) | 0.6699(2) | 0.40763(14) | 0.0300(8) |
| H33A | 0.4595 | 0.6492 | 0.4237 | 0.036* |
| H33B | 0.3463 | 0.7266 | 0.4167 | 0.036* |
| C34 | 0.3542(4) | 0.6570(2) | 0.34542(14) | 0.0284(8) |
| H34A | 0.3564 | 0.7082 | 0.3261 | 0.034* |
| H34B | 0.4498 | 0.6252 | 0.3338 | 0.034* |
| C35 | 0.1938(4) | 0.6129(2) | 0.33388(14) | 0.0257(7) |
| H35 | 0.2166 | 0.5549 | 0.3340 | 0.031* |
| C36 | 0.0172(5) | 0.7170(2) | 0.37607(15) | 0.0308(8) |
| H36A | −0.0209 | 0.7361 | 0.4114 | 0.046* |
| H36B | −0.0739 | 0.7179 | 0.3502 | 0.046* |
| H36C | 0.1056 | 0.7512 | 0.3629 | 0.046* |
| O5 | 0.2418(3) | 0.70941(16) | 0.74885(12) | 0.0366(6) |
| N1 | 0.3742(4) | 0.5928(2) | 0.73897(14) | 0.0397(8) |
| H1A | 0.2855 | 0.5654 | 0.7407 | 0.048* |
| H1B | 0.4671 | 0.5695 | 0.7349 | 0.048* |
| C37 | 0.3681(5) | 0.6702(2) | 0.74304(15) | 0.0305(8) |
| H37 | 0.4689 | 0.6982 | 0.7414 | 0.037* |
| O6 | 0.6207(3) | 0.45873(17) | 0.75526(12) | 0.0374(7) |
| N2 | 0.8359(4) | 0.3778(2) | 0.73670(13) | 0.0356(8) |
| H2B | 0.7819 | 0.3350 | 0.7425 | 0.043* |
| H2C | 0.9372 | 0.3755 | 0.7272 | 0.043* |
| C38 | 0.7644(5) | 0.4469(2) | 0.74186(15) | 0.0315(8) |
| H38 | 0.8296 | 0.4922 | 0.7346 | 0.038* |
Source of material
(17b)-estra-1,3,5(10)-triene-3,17diol (formamide) solvate is easily available. (17b)-estra-1,3,5(10)-triene-3,17diol (50 mg) was dissolved in tetrahydrofuran (2 mL) at 50 °C, then 1 mL formamide was added to the above solution dropwise slowly. The solution was cooled at room temperature and then crystallized using a cold chamber for 3 days. Stirred and filtered to get the (17b)-estra-1,3,5(10)-triene-3,17diol(formamide) solvate.
Experimental details
Hydrogen atoms were obtained geometrically and treated as riding on the parent atoms or were constrained in the locations during refinements.
Discussion
(17b)-estra-1,3,5(10)-triene-3,17diol(estradiol) (systematic name: (8R,9S,13S,14S,17S)-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene-3,17-diol is a member of the estrogen family of hormones, which was widespread used in hormonal replacement therapy for the treatment of postmenopausal symptoms and the protection against long-term consequences of estrogen deficiency (osteoporosis and cardiovascular disease) [3, 4] . Polymorphism, which is produced when compound crystallizes in various solid phases that differ in crystal packing [5], [6], [7]. Polymorphs can have different mechanical, thermal, physical, and chemical properties, such as compressibility, melting point, crystal habit, color, density, dissolution rate, and solubility. These can have a great influence on the bioavailability, hygroscopicity, stability, filtration, and tableting processes of pharmaceutical materials [8, 9] . Drug crystallization has been reported in many transdermal matrix systems [10, 11] . Due to the low solubility of estradiol [12], supersaturated patches containing high drug concentrations are often required for obtaining sufficient therapeutic efficiency. Recent work on the crystallization of estradiol in transdermal patches has revealed that the drug possibly crystallizes in more than one polymorphic form in the patch when stored for extended periods of time [13]. So it would thus appear important to anticipate conditions that give rise to crystallization, the structure of the resulting crystals and, when necessary, possible ways of inhibiting crystallization. In the study on polymorphism of estradiol, we got the title solvate of the estradiol with formamide.
The asymmetric unit of the title contains two crystallographically independent molecules of estradiol and two formamide solvent molecules. The estradiol and formamide molecules are hydrogen-bonded via N—H⋯O and O—H⋯O bonds. These connections lead to a hydrogen bonded framework. Bond lengths and angels of all moieties are in the expected ranges.
Acknowledgements
Our research is supported by Key national research and development programmes (No. 2016YFC1000901).
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©2018 Hui P. Wang et al., published by De Gruyter, Berlin/Boston
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Articles in the same Issue
- Cover and Frontmatter
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- Crystal structure of cyclo[hexaqua-bis[1-[(2-ethyl-1H-imidazol-1-yl) methyl]-1H-benzotriazole-κ2N:N′]-bis(sulfato-κ1O)dicadmium(II)] monohydrate, C24H42Cd2N10O16S2
- Crystal Structure of bis(2-fluorbenzoato-κO)-bis(1,10-phenanthroline-κ2N,N′)manganese(II) dihydrate, C38H28F2MnN4O6
- Crystal structure of tetrapropylammonium 5-hydroxyisophthalate tetrahydrate, C20H41NO9
- Crystal structural of 2-amino-4-(3-bromophenyl)-3-cyano-7,7-dimethyl-5-oxo-4H-5,6,7,8-tetrahydrobenzo[b]pyran, C18H17BrN2O2
- Crystal structural of 2-amino-4-(4-methoxyphenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C17H16N2O3
- Crystal structure of catena-poly[aqua(μ2-1,3-bis(1H-benzo[d]imidazol-1-yl)propane-κ2N:N′)-(μ2-5-(tert-butyl)isophthalate-κ3O,O′:O′′)nickel(II)], C29H30N4NiO5
- Crystal structure of catena-poly[(μ2-dicyanamido-κ2N:N′)-(μ2-2-(pyridin-2-yl)ethan-1-olato-κ3N,O:O′)copper(II)], C9H8CuN4O
- Crystal structure of bis(5,5′-((butane-1,4-diylbis(azanylylidene))bis(methanylylidene))bis(3-(ethoxycarbonyl)-2,4-dimethylpyrrol-1-ido-k4N,N′,N′′,N′′′)copper(II), C24H32CuN4O4
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- Crystal structure of catena-poly[diaqua-bis(μ2-1H-benzo[d]imidazole-5-carboxylato-κ2N:O)nickel(II)] dihydrate, C16H18N4NiO8
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- The crystal structure of catena-poly[aquachlorido(3,3′-([4,4′-bipyridine]-1,1′-diium-1,1′-diylbis(methylene))dibenzoato-κ2O:O′)copper(II)] chloride dihydrate, C26H26Cl2CuN2O7
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- The crystal structure of hexaaqua-bis(μ2-3-(3-(pyridin-4-yl)-1,2,4-oxadiazol-5-yl)propanoato-κ2O:O′)-tetrakis(3-(3-(pyridin-4-yl)-1,2,4-oxadiazol-5-yl)propanoato-κO)dierbium(III) octahydrate, C60H76N18O32Er2
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- Crystal structure of bis(N,N,N-trimethylbutanaminium) poly[heptaselenidotristannate(IV)], C14H36N2Se7Sn3
- The crystal structure of N-((3,5-di-tert-butyl-4-hydroxyphenyl)(phenyl)methyl)-4-methylbenzenesulfonamide, C28H35N3S
- Crystal structure of 2-(4-chlorophenyl)-2,3-dihydro-1H-perimidine, C17H13Cl1N2
- The Crystal structure of 2-iodo-1-(p-tolyl)propan-1-one, C10H11IO
- Crystal structure of ethyl 1-(4-bromobenzyl)-3-phenyl-1H-pyrazole-5-carboxylate, C19H17BrN2O2
- Crystal structure of ethyl 1-(4-fluorobenzyl)-3-phenyl-1H-pyrazole-5-carboxylate, C19H17FN2O2
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- Crystal structure of cesium beryllophosphate, Be3Cs2P4O14
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- Crystal structure of 9,10-dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium chloride — 4-hydroxy-3-methoxybenzoic acid — water (2/1/5), C48H54N2Cl2O17
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- Crystal structure of dinitrato-(N′-((quinolin-8-yl)methylene)isonicotinohydrazide κ3-N,N′,O)copper(II), C16H12N6O7Cu
- Crystal structure of benzoato-κO-bis(1,3,5-triaza-7-phosphaadamantane-κP)silver(I) monohydrate C19H31AgN6O3P2
- Crystal structure of (E)-2-(anthracen-9-ylmethylene)hydrazine-1-carbothioamide, C16H13N3S
- The crystal structure of 8-chloro-7-ethyl-1,3-dimethyl-1H-purine-2,6(3H,7H)-dione, C9H11ClN4O2
- Crystal structure of {5,5′-((propane-1,3-diylbis(azanylylidene))bis(methanylylidene))bis(3-(ethoxycarbonyl)-2,4-dimethylpyrrol-1-ido)-κ4N,N′,N′′,N′′′}zinc(II), C23H30N4O4Cu
- Crystal structure of bis(4-dimethylamino-pyridin-1-ium)tetrafluorosuccinate, C18H22F4N4O4
- Crystal structure of dimethyl 3,9-dibenzyl-6,12-dicyclohexyl-3,9-diazahexacyclo [6.4.0.02,7.04,11.05,10]-dodecane-1,11-dicarboxylate, C40H50N2O4
- Crystal structure of diethyl 3,9-diphenyl-6,12-bis(3-methoxyphenyl)-3,9-diazahexacyclo[6.4.0.02,7.04,11.05,10]dodecane-1,11-dicarboxylate, C42H42N2O6
- Crystal structure of bis(acetato-κO)-bis(1-(pyridin-2-yl)ethan-1-one oxime-κ2N,N′)nickel(II), C18H22N4NiO6
- Crystal structure of (N-(3-ethoxy-2-oxidobenzylidene)-4-fluorobenzohydrazonato-κ3N,O,O′)-diphenyltin(IV), C28H23FN2O3Sn
- Crystal structure of {N-(3-ethoxy-2-oxidobenzylidene)-4-fluorobenzohydrazonato-κ3O,N,O′}dimethyltin(IV), C18H19FN2O3Sn
Articles in the same Issue
- Cover and Frontmatter
- Crystal structure and optical properties of diaqua-tris(nitrato-κ2O,O′)-bis(4,4,5,5-tetramethyl-2-(p-pyridyl)imidazoline-1-oxyl 3-oxide-κN)praseodymium(III), C24H36N9O15Pr
- Crystal structure of dimethanol-bis(μ2-methanol-κ2O:O)-bis{3-((4-methoxy-2-oxidobenzylidene)amino)-2-oxo-2H-chromen-4-olato-κ3O,N,O′}dimanganese(II), C38H38Mn2N2O14
- Crystal structure of catena-poly[diaqua-bis(μ2-2-(2-((2,6-dichlorophenyl)amino)phenyl)acetato-κ3O,O′:O′)calcium(II)], C56H48N4Ca2Cl8O12
- Crystal structure of catena-poly[triaqua-(isophthalato-κO)-(μ2-1,6-di(1H-imidazol-1-yl)hexane-κ2N:N′)]nickel(II), C20H28N4NiO7
- Crystal structure of cyclo[hexaqua-bis[1-[(2-ethyl-1H-imidazol-1-yl) methyl]-1H-benzotriazole-κ2N:N′]-bis(sulfato-κ1O)dicadmium(II)] monohydrate, C24H42Cd2N10O16S2
- Crystal Structure of bis(2-fluorbenzoato-κO)-bis(1,10-phenanthroline-κ2N,N′)manganese(II) dihydrate, C38H28F2MnN4O6
- Crystal structure of tetrapropylammonium 5-hydroxyisophthalate tetrahydrate, C20H41NO9
- Crystal structural of 2-amino-4-(3-bromophenyl)-3-cyano-7,7-dimethyl-5-oxo-4H-5,6,7,8-tetrahydrobenzo[b]pyran, C18H17BrN2O2
- Crystal structural of 2-amino-4-(4-methoxyphenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C17H16N2O3
- Crystal structure of catena-poly[aqua(μ2-1,3-bis(1H-benzo[d]imidazol-1-yl)propane-κ2N:N′)-(μ2-5-(tert-butyl)isophthalate-κ3O,O′:O′′)nickel(II)], C29H30N4NiO5
- Crystal structure of catena-poly[(μ2-dicyanamido-κ2N:N′)-(μ2-2-(pyridin-2-yl)ethan-1-olato-κ3N,O:O′)copper(II)], C9H8CuN4O
- Crystal structure of bis(5,5′-((butane-1,4-diylbis(azanylylidene))bis(methanylylidene))bis(3-(ethoxycarbonyl)-2,4-dimethylpyrrol-1-ido-k4N,N′,N′′,N′′′)copper(II), C24H32CuN4O4
- The crystal structure of the formamide solvate of (17b)-estra-1,3,5(10)-triene-3,17diol, C19H27NO3
- Crystal structure of catena-poly[diaqua-bis(μ2-1H-benzo[d]imidazole-5-carboxylato-κ2N:O)nickel(II)] dihydrate, C16H18N4NiO8
- Crystal structure of dibromido[(1,2-bis(diisopropylphosphino)-1,2-dicarba-closo-dodecaborane-κ2P,P′]nickel(II), C14H38B10NiBr2P2
- The crystal structure of catena-poly[aquachlorido(3,3′-([4,4′-bipyridine]-1,1′-diium-1,1′-diylbis(methylene))dibenzoato-κ2O:O′)copper(II)] chloride dihydrate, C26H26Cl2CuN2O7
- The crystal structure of N′-(2-nitrobenzylidene)-2-phenylacetohydrazide, C15H13N3O3
- Crystal structure of dichlorido bis[1-[(2-methyl-1H-benzoimidazol-1-yl)methyl]-1H-benzotriazole-κ1N]cadmium(II), C30H26CdCl2N10
- Crystal structure of aqua-bis(3-(2-pyridyl)-5-(4-pyridyl)-1H-1,2,4-triazole-κ2N,N′)copper(II) sulfate tetrahydrate, C24H28CuN10O9S
- Crystal structure of dibromido-carbonyl-(η6-p-cymene)osmium(II), C11H14Br2OOs
- Crystal structure of catena-poly[chlorido-(μ2-chlorido)-bis(imidazole-κN)copper(II)] C6H8Cl2CuN4
- Crystal structure of [(1,2-bis(dicyclohexylphosphino)-1,2-dicarba-closo-dodecaborane-κ2P,P′]dibromidonickel(II)), C26H54B10NiBr2P2
- Crystal structure of dichlorido[1,1′-bis(diphenylphosphanyl)ferrocene-κ2P,P′]zinc(II), C34H28FeCl2P2Zn
- Crystal structure of tris(μ2-2-(pyridin-2-yl)ethan-1-olato-κ3N,O:O)-trithiocyanato-κN-dicobalt(III), C24H24Co2N6O3S3
- The crystal structure of diaqua-2,2′-((cyclohexane-1,2-diylbis(azanylylidene))bis(methanylylidene))diphenolato-κ4N,N′,O,O′)manganese(III) perchlorate, C20H24MnClN2O4
- Crystal structure of bis(μ3-chlorido)-bis(μ2-chlorido)-tetrakis(μ2-2,6-bis (diphenylmethyl)-4-t-butylphenolato)tetralithium(I)dicobalt(II) toluene solvate, C75.5H70Cl2CoLi2O2
- The crystal structure of hexaaqua-bis(μ2-3-(3-(pyridin-4-yl)-1,2,4-oxadiazol-5-yl)propanoato-κ2O:O′)-tetrakis(3-(3-(pyridin-4-yl)-1,2,4-oxadiazol-5-yl)propanoato-κO)dierbium(III) octahydrate, C60H76N18O32Er2
- Crystal structure of dimethylammonium bis(naphthalene-2,3-diolato)borate, C22H20BNO4
- Crystal structure of 2-amino-4-(4-nitro-phenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C18H17N3O4
- The crystal structure of (E)-4-chloro-2-(((5-methylpyridin-2-yl)imino)methyl)phenol, C13H11ClN2O
- Crystal structure of bis(N,N,N-trimethylbutanaminium) poly[heptaselenidotristannate(IV)], C14H36N2Se7Sn3
- The crystal structure of N-((3,5-di-tert-butyl-4-hydroxyphenyl)(phenyl)methyl)-4-methylbenzenesulfonamide, C28H35N3S
- Crystal structure of 2-(4-chlorophenyl)-2,3-dihydro-1H-perimidine, C17H13Cl1N2
- The Crystal structure of 2-iodo-1-(p-tolyl)propan-1-one, C10H11IO
- Crystal structure of ethyl 1-(4-bromobenzyl)-3-phenyl-1H-pyrazole-5-carboxylate, C19H17BrN2O2
- Crystal structure of ethyl 1-(4-fluorobenzyl)-3-phenyl-1H-pyrazole-5-carboxylate, C19H17FN2O2
- Crystal structure of catena-poly[diaqua-(μ2-2,5-dihydroxyterephthalato-κ4O,O′:O′′,O′′′)cadmium(II)], C8H8O8Cd
- Crystal structure of tetraaqua-bis[6-(1H-imidazol-1-yl-κN)nicotinato]zinc(II), C18H20N6O8Zn
- Crystal structure of dichlorido-bis(N-phenyl-2-(quinolin-8-yloxy)acetamide-κ2N,O) – acetone (2/1), C35.5H31N4O4.5Cl2Cu
- Crystal Structure of ethyl (E)-3,4-dimethyl-5-((2-(4-methylbenzoyl)hydrazono)methyl)-1H-pyrrole-2-carboxylate — water — ethanol (1/1/1), C20H29N3O5
- Crystal structure of 5-((4-(1H-benzo[d]imidazol-2-yl)-2-methoxyphenoxy)methyl)-2-chlorothiazole - trichloromethane - methanol (1/1/1), C20H19Cl4N3O3S
- The crystal structure of a matrine derivative: 41S,7aS,12S,13aR,13bR)-12-(4-methylpiperazin-1-yl)dodecahydro-1H,5H,10H-dipyrido[2,1-f:3′,2′,1′-ij][1,6]naphthyridin-10-one, C20H34N4O
- Crystal structure of cesium beryllophosphate, Be3Cs2P4O14
- Crystal Structure of 3-((3-hydroxybenzyl)ammonio)-3-phenylpropanoate, C16H17NO3
- Crystal structure of 9,10-dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino[3,2-a]isoquinolin-7-ium chloride — 4-hydroxy-3-methoxybenzoic acid — water (2/1/5), C48H54N2Cl2O17
- The crystal structure of (1R, 2R)-N1,N2-diferrocenyl-1,2-cyclohexanedicarboxamide, C28H30Fe2N2O2
- Crystal structure of N-(2-methylphenyl)ethoxycarbothioamide, C10H13NOS
- Crystal Structure of ethyl (E)-2,4-dimethyl-5-((2-tosylhydrazono)methyl)-1H-pyrrole-3-carboxylate monohydrate, C17H23N3O5
- Crystal structure of Diiodo-(N′-((quinolin-8-yl)methylene)isonicotinohydrazide κ3N,N′,O)cadium(II) – dimethylformamide (1/1), C19H19N5O2CdI2
- Crystal structure of dinitrato-(N′-((quinolin-8-yl)methylene)isonicotinohydrazide κ3-N,N′,O)copper(II), C16H12N6O7Cu
- Crystal structure of benzoato-κO-bis(1,3,5-triaza-7-phosphaadamantane-κP)silver(I) monohydrate C19H31AgN6O3P2
- Crystal structure of (E)-2-(anthracen-9-ylmethylene)hydrazine-1-carbothioamide, C16H13N3S
- The crystal structure of 8-chloro-7-ethyl-1,3-dimethyl-1H-purine-2,6(3H,7H)-dione, C9H11ClN4O2
- Crystal structure of {5,5′-((propane-1,3-diylbis(azanylylidene))bis(methanylylidene))bis(3-(ethoxycarbonyl)-2,4-dimethylpyrrol-1-ido)-κ4N,N′,N′′,N′′′}zinc(II), C23H30N4O4Cu
- Crystal structure of bis(4-dimethylamino-pyridin-1-ium)tetrafluorosuccinate, C18H22F4N4O4
- Crystal structure of dimethyl 3,9-dibenzyl-6,12-dicyclohexyl-3,9-diazahexacyclo [6.4.0.02,7.04,11.05,10]-dodecane-1,11-dicarboxylate, C40H50N2O4
- Crystal structure of diethyl 3,9-diphenyl-6,12-bis(3-methoxyphenyl)-3,9-diazahexacyclo[6.4.0.02,7.04,11.05,10]dodecane-1,11-dicarboxylate, C42H42N2O6
- Crystal structure of bis(acetato-κO)-bis(1-(pyridin-2-yl)ethan-1-one oxime-κ2N,N′)nickel(II), C18H22N4NiO6
- Crystal structure of (N-(3-ethoxy-2-oxidobenzylidene)-4-fluorobenzohydrazonato-κ3N,O,O′)-diphenyltin(IV), C28H23FN2O3Sn
- Crystal structure of {N-(3-ethoxy-2-oxidobenzylidene)-4-fluorobenzohydrazonato-κ3O,N,O′}dimethyltin(IV), C18H19FN2O3Sn