Home Synthesis and crystal structure of (3E,5S,10S,13S,14S,17Z)-17-ethylidene-10,13-dimethylhexadecahydro-3H-cyclopenta[α]phenanthren-3-one O-(methacryloyl) oxime, C50H74N2O4
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Synthesis and crystal structure of (3E,5S,10S,13S,14S,17Z)-17-ethylidene-10,13-dimethylhexadecahydro-3H-cyclopenta[α]phenanthren-3-one O-(methacryloyl) oxime, C50H74N2O4

  • Peng Wei ORCID logo , Jin-Feng Zhao , Juan Zou , Jiang-Hai Ye , Kang He EMAIL logo and Hong Xu EMAIL logo
Published/Copyright: October 23, 2023
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Zeitschrift für Kristallographie - New Crystal Structures
From the journal Zeitschrift für Kristallographie - New Crystal Structures Volume 238 Issue 6

Abstract

C50H74N2O4, orthorhombic, P1 (no. 1), a = 7.3320(3) Å, b = 11.8132(4) Å, c = 13.1604(5) Å, α = 99.1910(10)°, β = 95.039(1)°, γ = 95.8560(10)°, V = 1113.06(7) Å3, Z = 1, Rgt(F) = 0.0662, wRref(F2) = 0.1655, T = 273(2) K.

CCDC no.: 2293654

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.

Table 1:

Data collection and handling.

Crystal: Colourless nubbly
Size: 0.22 × 0.21 × 0.19 mm
Wavelength: Mo Kα radiation (0.71073 Å)
μ: 0.07 mm−1
Diffractometer, scan mode: Bruker APEX-II, φ and ω
θmax, completeness: 34.6°, 99 %
N(hkl)measured, N(hkl)unique, Rint: 38,222, 18,292, 0.054
Criterion for Iobs, N(hkl)gt: Iobs > 2σ(Iobs), 7800
N(param)refined: 512
Programs: Olex2 [1], Bruker [2], SHELX [3], Diamond [4]
Table 2:

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).

Atom x y z Uiso*/Ueq
O1 0.3076 (3) 0.48271 (18) 0.6422 (2) 0.0675 (6)
N1 0.4993 (3) 0.5295 (2) 0.6593 (2) 0.0606 (7)
C1 0.3809 (3) 0.8208 (2) 0.7111 (2) 0.0520 (7)
H1A 0.292743 0.869706 0.688183 0.062*
H1AB 0.347456 0.801068 0.776359 0.062*
O2 0.4011 (4) 0.3068 (2) 0.6349 (2) 0.0805 (7)
C2 0.3648 (4) 0.7094 (3) 0.6312 (3) 0.0614 (8)
H2A 0.245517 0.665624 0.631266 0.074*
H2AB 0.372620 0.728993 0.562778 0.074*
C4 0.7055 (4) 0.6990 (3) 0.6767 (3) 0.0561 (8)
H4A 0.746502 0.720881 0.613673 0.067*
H4AB 0.788780 0.647887 0.700918 0.067*
C3 0.5133 (4) 0.6367 (3) 0.6541 (2) 0.0527 (7)
C5 0.7111 (3) 0.8066 (2) 0.7586 (2) 0.0475 (7)
H5 0.671801 0.779577 0.820808 0.057*
C8 0.7779 (3) 1.0504 (2) 0.8596 (2) 0.0444 (6)
H8 0.818219 1.090298 0.804140 0.053*
C7 0.9133 (3) 0.9640 (3) 0.8790 (3) 0.0573 (7)
H7A 1.037201 1.004449 0.893175 0.069*
H7AB 0.884736 0.931824 0.939870 0.069*
C6 0.9079 (3) 0.8667 (3) 0.7886 (3) 0.0585 (8)
H6A 0.988278 0.811188 0.807051 0.070*
H6AB 0.952464 0.897109 0.729916 0.070*
C9 0.5813 (3) 0.9881 (2) 0.8245 (2) 0.0417 (6)
H9 0.546469 0.949829 0.881953 0.050*
C10 0.5731 (3) 0.8899 (2) 0.7298 (2) 0.0426 (6)
C11 0.4431 (4) 1.0755 (3) 0.8138 (2) 0.0532 (7)
H11A 0.319779 1.034225 0.799556 0.064*
H11B 0.467328 1.112394 0.754830 0.064*
C12 0.4485 (4) 1.1693 (3) 0.9095 (3) 0.0541 (7)
H12A 0.365131 1.224670 0.894726 0.065*
H12B 0.406714 1.134332 0.966527 0.065*
C14 0.7723 (3) 1.1396 (2) 0.9547 (2) 0.0465 (7)
H14 0.722171 1.097156 1.006147 0.056*
C13 0.6433 (4) 1.2321 (2) 0.9412 (2) 0.0485 (7)
C15 0.9522 (4) 1.2087 (3) 1.0082 (3) 0.0622 (8)
H15A 1.026090 1.160881 1.044325 0.075*
H15B 1.023827 1.240667 0.958754 0.075*
C16 0.8874 (4) 1.3040 (3) 1.0841 (3) 0.0749 (10)
H16A 0.960152 1.377333 1.083962 0.090*
H16B 0.899361 1.286393 1.153676 0.090*
C17 0.6847 (4) 1.3095 (3) 1.0475 (2) 0.0563 (7)
C18 0.6989 (5) 1.3059 (3) 0.8598 (3) 0.0664 (9)
H18A 0.688906 1.257551 0.793067 0.100*
H18B 0.823810 1.341055 0.878103 0.100*
H18C 0.618535 1.364875 0.857390 0.100*
C19 0.6158 (4) 0.9385 (3) 0.6321 (2) 0.0585 (8)
H19A 0.606749 0.876323 0.574544 0.088*
H19B 0.738313 0.978630 0.642583 0.088*
H19C 0.528881 0.991037 0.618050 0.088*
C20 0.5793 (4) 1.3752 (3) 1.1019 (3) 0.0583 (8)
H20 0.635488 1.415849 1.165167 0.070*
C21 0.3842 (4) 1.3930 (3) 1.0763 (3) 0.0672 (8)
H21A 0.376791 1.439348 1.022811 0.101*
H21B 0.337919 1.431597 1.136896 0.101*
H21C 0.311842 1.319567 1.052740 0.101*
C22 0.2793 (5) 0.3679 (3) 0.6380 (2) 0.0595 (8)
C23 0.0804 (5) 0.3277 (3) 0.6348 (3) 0.0648 (9)
C24 −0.0497 (5) 0.4004 (4) 0.6359 (3) 0.0813 (11)
H24A −0.173053 0.372282 0.635229 0.098*
H24B −0.016137 0.478777 0.637379 0.098*
C25 0.0395 (6) 0.2019 (3) 0.6325 (4) 0.0984 (14)
H25A −0.091441 0.181610 0.627928 0.148*
H25B 0.096676 0.181830 0.694568 0.148*
H25C 0.086847 0.160757 0.573442 0.148*
C1_1 0.2814 (3) 0.1946 (2) 0.2668 (2) 0.0479 (7)
H1A_1 0.312986 0.218213 0.202694 0.058*
H1AB_1 0.157906 0.153467 0.253907 0.058*
N1_1 0.4932 (3) 0.4702 (2) 0.3680 (2) 0.0622 (7)
O1_1 0.6881 (3) 0.51335 (19) 0.38858 (19) 0.0678 (6)
C2_1 0.2813 (4) 0.3030 (3) 0.3489 (3) 0.0617 (9)
H2A_1 0.201821 0.354561 0.322063 0.074*
H2AB_1 0.232685 0.280963 0.410097 0.074*
O2_1 0.6053 (4) 0.6930 (2) 0.4071 (2) 0.0768 (7)
C3_1 0.4724 (4) 0.3644 (3) 0.3777 (2) 0.0554 (8)
C4_1 0.6150 (4) 0.2901 (3) 0.4078 (2) 0.0574 (8)
H4A_1 0.591807 0.266798 0.473293 0.069*
H4AB_1 0.736150 0.334089 0.416583 0.069*
C5_1 0.6109 (3) 0.1826 (2) 0.3248 (2) 0.0463 (7)
H5_1 0.641231 0.210687 0.261450 0.056*
C6_1 0.7593 (4) 0.1080 (3) 0.3508 (2) 0.0585 (7)
H6A_1 0.732745 0.075394 0.411809 0.070*
H6AB_1 0.877730 0.155257 0.366355 0.070*
C7_1 0.7686 (4) 0.0111 (2) 0.2611 (2) 0.0562 (7)
H7A_1 0.858452 −0.038172 0.281324 0.067*
H7AB_1 0.810083 0.043994 0.202901 0.067*
C8_1 0.5816 (3) −0.0621 (2) 0.2271 (2) 0.0450 (6)
H8_1 0.547259 −0.102343 0.283520 0.054*
C9_1 0.4320 (3) 0.0168 (2) 0.2042 (2) 0.0411 (6)
H9_1 0.474951 0.057789 0.150000 0.049*
C10_1 0.4171 (3) 0.1116 (2) 0.2983 (2) 0.0438 (6)
C11_1 0.2478 (3) −0.0537 (3) 0.1574 (2) 0.0521 (7)
H11A_1 0.193745 −0.089604 0.210766 0.062*
H11B_1 0.164456 −0.001475 0.135415 0.062*
C12_1 0.2637 (4) −0.1477 (2) 0.0651 (2) 0.0507 (7)
H12A_1 0.301042 −0.111988 0.007571 0.061*
H12B_1 0.144169 −0.192367 0.043479 0.061*
C13_1 0.4048 (4) −0.2285 (2) 0.0930 (2) 0.0454 (6)
C14_1 0.5885 (3) −0.1510 (2) 0.1312 (2) 0.0462 (6)
H14_1 0.613763 −0.106927 0.075883 0.055*
C15_1 0.7320 (4) −0.2361 (3) 0.1306 (2) 0.0594 (8)
H15A_1 0.855134 −0.197698 0.129796 0.071*
H15B_1 0.729508 −0.275115 0.190021 0.071*
C16_1 0.6697 (4) −0.3198 (3) 0.0302 (2) 0.0623 (8)
H16A_1 0.692165 −0.397544 0.038241 0.075*
H16B_1 0.736370 −0.297723 −0.025392 0.075*
C17_1 0.4638 (4) −0.3141 (2) 0.0062 (2) 0.0518 (7)
C18_1 0.3353 (4) −0.2971 (3) 0.1754 (2) 0.0592 (8)
H18A_1 0.221958 −0.344249 0.147738 0.089*
H18B_1 0.314756 −0.244236 0.235617 0.089*
H18C_1 0.426003 −0.345323 0.194178 0.089*
C19_1 0.3526 (4) 0.0592 (3) 0.3907 (2) 0.0590 (8)
H19A_1 0.226005 0.026459 0.374859 0.088*
H19B_1 0.364297 0.118472 0.450755 0.088*
H19C_1 0.427301 −0.000047 0.404119 0.088*
C20_1 0.3653 (5) −0.3800 (3) −0.0742 (3) 0.0627 (8)
H20_1 0.431760 −0.423687 −0.119543 0.075*
C21_1 0.1619 (5) −0.3942 (3) −0.1024 (3) 0.0791 (10)
H21A_1 0.135456 −0.371039 −0.168308 0.119*
H21B_1 0.105236 −0.347100 −0.050707 0.119*
H21C_1 0.113962 −0.473732 −0.106475 0.119*
C22_1 0.7215 (5) 0.6293 (3) 0.3996 (2) 0.0550 (7)
C23_1 0.9228 (5) 0.6663 (3) 0.4031 (3) 0.0622 (8)
C24_1 0.9810 (6) 0.7840 (3) 0.4306 (3) 0.0861 (12)
H24A_1 1.105324 0.811036 0.433449 0.103*
H24B_1 0.895680 0.835524 0.446142 0.103*
C25_1 1.0443 (5) 0.5837 (4) 0.3786 (4) 0.0930 (13)
H25A_1 0.976036 0.508170 0.361947 0.139*
H25B_1 1.105879 0.600143 0.320320 0.139*
H25C_1 1.133874 0.586363 0.436994 0.139*

1 Source of material

(3E,5S,10S,13S,14S,17Z)-17-ethylidene-10,13-dimethylhexadecahydro-3H-cyclopenta[α]phenanthren-3-one oxime (1.2 mmol) was dissolved in 10 ml of benzene and stirred at room temperature. After the addition of 1.5 mmol of triethylamine, we added a benzene solution containing 1.5 mmol methacryloyl chloride slowly, after keeping stirring at room temperature for 3 h. The reaction mixture was terminated with water and extracted with ethyl acetate, then merged with organic phase. This product was dried by anhydrous Na2SO4, concentrated under reduced pressure, purified by silica gel chromatography. Colorless crystals were obtained. 78 % yield. Elemental analysis calcd. (%) for C50H74N2O4: C, 78.28; H, 9.72; N, 3.65; O, 8.34.

2 Experimental details

2.1 Comment

Pregnane alkaloids are the main chemical constituents of Sarcococca [5, 6]. Our research group previously has carried out a systematic study on the chemical constituents of Sarcococca ruscifolia and Sarcococca hookeriana, obtaining some steroidal alkaloids with novel structures and significant anti-tumor and anti-senile dementia activities [7], [8], [9]. However, the structural diversity of naturally occurring alkaloids is very limited. We used epiandrosterone as raw material to introduce an allyl group at the C17 position through the Wittig reaction, a ketone group at the C3 position through the Corey reaction, and a series of pregnane alkaloids were obtained by the reaction of carbonyl compounds with hydroxylamine hydrochloride [10], [11], [12], [13], [14]. In order to find high-efficiency, low-toxicity and safe prestanane alkaloid derivatives, we introduced methacryloyl chloride and obtained a new compound.

The title compound contains four rings, including three six-membered rings, one five-membered ring, four methyl groups, one ester group, two carbon-carbon double bonds, and one carbon-nitrogen double bond. There are two molecules in the asymmetric unit. d(O1–C22) = 1.342(4) Å, d(O2–C22) = 1.204(4) Å, d(O1–N1) = 1.441(3) Å, d(N1–C3) = 1.274(4) Å, d(C17–C20) = 1.325(4) Å. The five-and six-membered rings show molecular interaction only through van der Waals force.

Corresponding authors: Kang He and Hong Xu, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, P.R. China, E-mail: (K. He), (H. Xu)

Funding source: Key Projects of Guizhou Basic Research Program

Award Identifier / Grant number: [grant number Qiankehejichu-ZK (2022) key 046]

Funding source: Natural-Scientific Research Program of Department of Education of Guizhou Province Qianjiaoji

Award Identifier / Grant number: [(2023)070]

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: Key Projects of Guizhou Basic Research Program [grant number Qiankehejichu-ZK (2022) key 046], the Natural-Scientific Research Program of Department of Education of Guizhou Province Qianjiaoji [(2023)070].

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2023-09-17
Accepted: 2023-10-14
Published Online: 2023-10-23
Published in Print: 2023-12-15

© 2023 the author(s), published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution 4.0 International License.

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  21. Crystal structure of poly[(μ6-ammoniotris(methylene))tris(hydrogen phosphonato)cadmium(II)], C3H10CdNO9P3
  22. Crystal structure of Zn2[(1,1′-(hexane-1,6-diyl)bis(3-(pyridin-3-yl)urea))·(H2O)2·(DMF)2·(SO4)2], C24H50N8O18S2Zn2
  23. The crystal structure of 2-anilino-1,4-naphthoquinone, C10H11NO2
  24. Crystal structure of (E)-2-(2-(4-(diethylamino)styryl)-1-ethyl-1,4-dihydroquinolin-4-yl) malononitrile, C26H26N4
  25. Crystal structure of ethyl 2-((2,6-dichloro-4-(cyanomethyl)phenyl) amino)benzoate, C17H14Cl2N2O2
  26. Synthesis and crystal structure of 2-(3-oxo-3-phenylpropyl)isoindoline-1,3-dione, C17H13NO3
  27. The crystal structure of bis(acetonitrile-κ1N)tetrakis(μ2-2,6-difluorobenzoato-κ2O:O′)rhodium(II) (Rh–Rh), C32H18F8O8N2Rh2
  28. The crystal structure of a new polymorph of 6-hydroxy-2-naphthoic acid, C11H8O3
  29. The crystal structure of [(8-carboxymethoxy-quinoline-2-carboxylate-κ4N,O,O,O)-2,2′-bipyridine-κ2N-copper(II)] tetrahydrate, C22H23N3O9Cu
  30. The crystal structure of ethyl 4-hydroxy-2-(4-methoxyphenyl)-5-oxo-1-(2-oxo-2H-chromen-6-yl)-2,5-dihydro-1H-pyrrole-3-carboxylate, C23H19NO7
  31. Crystal structure of 7-hydroxy-3,4-dihydronaphthalen-1(2H)-one, C10H10O2
  32. Crystal structure of bis(tetrapropylammonium) dodecacarbonyltetratelluridotetraferrate(2-), (Pr4N)2[Fe4Te4(CO)12]
  33. The crystal structure of poly[bis(μ2−3−aminopyridine−4−carboxylato−κ2N:O)Zinc(II)], [Zn(C6H5N2O2)2] n
  34. The crystal structure of methyl 5-nitro-2-(tosyloxy)benzoate, C15H13NO7S
  35. The crystal structure of 18-crown-6 ― tetraaqua-dichlorido-di-μ2-chloridodicopper(II) (2/1), C12H32O10Cu2Cl4
  36. Crystal structure of 6,6a,7,8,9,10-hexahydro-5H-pyrazino [2,3-e]pyrido[1,2-a]pyrazine, C10H14N4
  37. Crystal structure of catena-poly-{diaqua-bis[μ-(((4-chlorophenyl)sulfonyl)glycinato-κO)](μ2-4, 4′-bipyridine-κ2N:N′)cobalt(II)} dihydrate, C26H30Cl2CoN4O12S2
  38. Crystal structure of bis{N′-[1,3-diphenylprop-2-en-1-ylidene]-N-phenylcarbamohydrazonothioato}zinc(II), C44H36N6S2Zn
  39. Crystal structure of tetraaqua-bis(((4-chlorophenyl)sulfonyl)glycinato-κO)cobalt(II) dihydrate, C16H26Cl2CoN2O14S2
  40. Crystal structure of 2-(5-phenyl-1-(quinolin-2-yl)-4,5-dihydro-1H-pyrazol-3-yl)phenol, C24H19N3O
  41. Crystal structure of 2-((2-fluoro-4-(trifluoromethyl)phenyl)(hydroxy)methyl)-7-methoxy-3,4-dihydronaphthalen-1((2H))-one, C19H16F4O3
  42. Crystal structure of 2-amino-4-(2-fluoro-3-(trifluoromethyl)phenyl)-9-methoxy-1,4,5,6-tetrahydrobenzo[h]quinazolin-3-ium chloride, C20H18ClF4N3O
  43. Crystal structure of (2-phenylimino methylquinoline-κ 2 N,N′)-bis(1–phenylpyrazole-κ 2 C,N)-iridium(III) hexafluorophosphate, C34H26F6IrN6P
  44. Crystal structure of (3-hydroxy-4-methoxyphenyl)(pyrrolidin-1-yl)methanone, C12H15NO3
  45. The crystal structure of bis(trimethylsulfoxonium) catena-poly[µ2-hexabromido-indium(III)sodium(I)] C6H18O2S2NaInBr6
  46. Crystal structure of N-cyclopropyl-3-hydroxy-4-methoxybenzamide, C11H13NO3
  47. The crystal structure of (bis(benzimidazol-2-yl-methyl)amine-κ3N,N′,N″ )-(dihydrogen L-malate-κ2O,O ′)copper(II) perchlorate dihydrate, CuC20H24ClN5O12
  48. Crystal structure of (1E,1′E)-4,4′-(9,9-diethyl-9H-fluorene-2,7-diyl)dibenzaldehyde dioxime, C31H28N2O2
  49. Crystal structure of diethyl 1,9-bis(4-fluorophenyl)-4,6-diphenylhexahydro-3H-2,7,3,5-(epimethanetriyliminomethanetriyl)cyclopenta [b]pyridine-3,7(2H)-dicarboxylate, C40H36F2N2O4
  50. Crystal structure of bis(benzene-1 carboxylato-O 3,5-carboxyl-κ1O)-[(5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane-κ4N,N′,N′′,N′′′)nickel(II) ─ benzene-1,3,5-tricarboxylic acid ─ water (1/2/4), C52H66N4NiO28
  51. Crystal structure of 1,4-dibromo-2,5-bis(2-methoxyethoxy)benzene-1,4-diol, C12H16Br2O4
  52. Crystal structure of dicarbonyl[N,N′-(1,2-dimethyl-1,2-ethanediylidene)bis[2,6-bis(1-methylethyl)benzenamine]-N,N′]nickel(0), C30H40N2NiO2
  53. Crystal structure of 1,4-dibromo-2,5-bis(prop-2-yn-1-yloxy)benzene, C12H8Br2O2
  54. Crystal structure of O-(3-(benzo[d]thiazol-2-yl)naphthalen-2-yl) O-phenyl carbonothioate, C24H15NO2S2
  55. The crystal structure of (E)-4-fluoro-N′-(1-(4-hydroxyphenyl)propylidene)benzohydrazide, C16H15FN2O2
  56. Crystal structure of (E)-1-(benzo[d]thiazol-2-yl)-N-(4,5-dihydropyren-2-yl)methanimine, C24H16N2S
  57. Crystal structure of 3-((4-bromophenyl)thio)-1H-indole, C14H10BrNS
  58. Synthesis and crystal structure of 1-((7-hydroxy-3-(4-hydroxy-3-nitrophenyl)-4-oxo-4H-chromen-8-yl)methyl)piperidin-1-ium-4-carboxylate monohydrate, C22H22N2O9
  59. Synthesis and crystal structure of (3E,5S,10S,13S,14S,17Z)-17-ethylidene-10,13-dimethylhexadecahydro-3H-cyclopenta[α]phenanthren-3-one O-(methacryloyl) oxime, C50H74N2O4
  60. Crystal structure of the hydrogen storage active phase La12Mg46LiMn
  61. The crystal structure of the salt: 4-((1,3-dioxoisoindolin-2-yl)carbamoyl)pyridine-1-ium 2-carboxybenzoate, C14H10N3O3·C8H5O4
  62. Crystal structure of (2-(2-pyridine)-benzimidazole-κ2 N,N′)-bis(1-phenylpyrazole-κ2 C,N)iridium(III) hexafluorophosphate, C30H22F6IrN7P
  63. Crystal structure of dichlorido-bis[2-(2,4-difluorophenyl)pyridine-κ1N]platinum(II), C22H14Cl2F4N2Pt
  64. Crystal structure of (5R,8R,9R,10R,12R,13R,14R, 17S,17Z)-2-((3-fluoropyridin-4-yl)methylene)-12-hydroxy-4,4,8,10,14-pentamethyl-17-((R)-2,6,6-trimethyltetrahydro-2H-pyran-2-yl)hexadecahydro-3H-cyclopenta[a]phenanthren-3-one, C36H52FNO3
https://doi.org/10.1515/ncrs-2023-0413
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Articles in the same Issue

  1. Frontmatter
  2. New Crystal Structures
  3. Crystal structure of bis(dimethylammonium) poly[(μ4-1,1′-(1,4-phenylenebis(methylene))bis(1H-pyrazole-3,5-dicarboxylato))-κ6O1, N2:O2:O3:O1′,N2′]nickel (II)], C22H26N6NiO8
  4. Hydrothermal synthesis and crystal structure of catena-poly[diaqua-bis(μ2-4-((pyridin-4-ylmethyl)amino)benzoato-κ2N:O)cobalt(II)] – 4,4′-bipyridine – water (1/2/2)
  5. Crystal structure of (2S,3S,4S,5S, Z)-2,3,5,6-tetrakis(benzyloxy)-4-hydroxyhexanal oxime, C34H37NO6
  6. The crystal structure of hexakis(3-thiophenecarboxylato-κ2O,O″)-bis(1,10-phenanthroline-κ2N,N′) trimanganese(II), C54H34N4O12S6Mn3
  7. Crystal structure of catena-poly[(μ2-1,4-di(pyridin-4-yl)benzene-κ2N:N′)-(4-bromobenzoate-κ2O:O′)-(μ-2-bromobenzoate-κ2O,O′)nickel(II)] – water (2/1), C30H21Br2N2NiO4.5
  8. The crystal structure of poly[(μ3-1,3-phenylenedioxydiacetate-κ5O,O,O′,O″,O‴)-bis(4′-(4-(1H-imidazol-1-yl)phenyl)-4,2′:6′,4″-terpyridine-kN) cadmium(II)], C58H42CdN10O6
  9. The crystal structure of 5-chloro-6′-methyl-3-(4-(methylsulfonyl)phenyl)-[2,3′-bipyridin]-1′-ium 4-methylbenzenesulfonate
  10. Crystal structure of poly[(μ-benzoato)-(μ-cis-4–hydroxy-D-proline)lithium], C12H14LiNO5
  11. The crystal structure of catena-poly[aqua-(4-iodopyridine-2,6-dicarboxylato-κ3N,O,O′)-copper(II)] monohydrate, C7H6NO6ICu
  12. The crystal structure of catena-[diaqua-(4-acetylphenoxyacetato-κ2O,O)-bis(4-acetylphenoxyacetato-κ3O,O:O)-dihydrate-lanthanum(III)]–4,4′-bipyridine (2/1), C35H35NO14La
  13. The crystal structure of catena-poly[(4-iodopyridine-2,6-dicarboxylato-κ4 O,N,O′,O′′)(4-imidazol-1-yl-pyridine-κN)copper(II)], C15H9N4O4ICu
  14. Crystal structure of polybis(μ 4-3,5-dicarboxylatopyrazol-1-yl)-bis(N,N-dimethylformamide)tri-copper(II)–acetonitrile (1/2), C20H22Cu3N8O10
  15. Crystal structure of poly[(μ2-5-hydroxy-isophthalato-κ4O,O′:O″,O‴)-(μ2-1,5-bis(imidazol-2-methyl)pentane-κ2N:N′)cadmium(II)], C21H24CdN4O5
  16. The crystal structure of poly[bis(μ2-1,4-bi(1-imidazolyl)benzene-κ2N:N′)bis(μ2-4,4′-methylenebis(3-hydroxy-2-naphthoate)-κ2O:O′)cobalt(II)], C35H24CoN4O6
  17. The crystal structure of a cobalt-vanadium-oxido hydrate
  18. The crystal structure of catena-poly[(μ 2-2H-1,2,3-triazole-4,5-dicarboxylato-κ 2 O, O′)-(μ 2-1,3-bis((1H-imidazol-1-yl)methyl)benzene-κ 2 N,N′) zinc(II)], C18H15N7O4Zn
  19. Crystal structure of poly[diaqua-(bis(m2-1,4-bis(imidazol-1-ylmethyl)benzene)-κ2N,N′-manganese] dichloride, C28H32MnN8O2Cl2
  20. The crystal structure of 9,10-dimethoxy-5,6-dihydro-[1,3]dioxolo[4,5-g]isoquinolino [3,2-a]isoquinolin-7-ium (E)-3-(4-nitrophenyl)acrylate pentahydrate, C29H34N2O13
  21. Crystal structure of poly[(μ6-ammoniotris(methylene))tris(hydrogen phosphonato)cadmium(II)], C3H10CdNO9P3
  22. Crystal structure of Zn2[(1,1′-(hexane-1,6-diyl)bis(3-(pyridin-3-yl)urea))·(H2O)2·(DMF)2·(SO4)2], C24H50N8O18S2Zn2
  23. The crystal structure of 2-anilino-1,4-naphthoquinone, C10H11NO2
  24. Crystal structure of (E)-2-(2-(4-(diethylamino)styryl)-1-ethyl-1,4-dihydroquinolin-4-yl) malononitrile, C26H26N4
  25. Crystal structure of ethyl 2-((2,6-dichloro-4-(cyanomethyl)phenyl) amino)benzoate, C17H14Cl2N2O2
  26. Synthesis and crystal structure of 2-(3-oxo-3-phenylpropyl)isoindoline-1,3-dione, C17H13NO3
  27. The crystal structure of bis(acetonitrile-κ1N)tetrakis(μ2-2,6-difluorobenzoato-κ2O:O′)rhodium(II) (Rh–Rh), C32H18F8O8N2Rh2
  28. The crystal structure of a new polymorph of 6-hydroxy-2-naphthoic acid, C11H8O3
  29. The crystal structure of [(8-carboxymethoxy-quinoline-2-carboxylate-κ4N,O,O,O)-2,2′-bipyridine-κ2N-copper(II)] tetrahydrate, C22H23N3O9Cu
  30. The crystal structure of ethyl 4-hydroxy-2-(4-methoxyphenyl)-5-oxo-1-(2-oxo-2H-chromen-6-yl)-2,5-dihydro-1H-pyrrole-3-carboxylate, C23H19NO7
  31. Crystal structure of 7-hydroxy-3,4-dihydronaphthalen-1(2H)-one, C10H10O2
  32. Crystal structure of bis(tetrapropylammonium) dodecacarbonyltetratelluridotetraferrate(2-), (Pr4N)2[Fe4Te4(CO)12]
  33. The crystal structure of poly[bis(μ2−3−aminopyridine−4−carboxylato−κ2N:O)Zinc(II)], [Zn(C6H5N2O2)2] n
  34. The crystal structure of methyl 5-nitro-2-(tosyloxy)benzoate, C15H13NO7S
  35. The crystal structure of 18-crown-6 ― tetraaqua-dichlorido-di-μ2-chloridodicopper(II) (2/1), C12H32O10Cu2Cl4
  36. Crystal structure of 6,6a,7,8,9,10-hexahydro-5H-pyrazino [2,3-e]pyrido[1,2-a]pyrazine, C10H14N4
  37. Crystal structure of catena-poly-{diaqua-bis[μ-(((4-chlorophenyl)sulfonyl)glycinato-κO)](μ2-4, 4′-bipyridine-κ2N:N′)cobalt(II)} dihydrate, C26H30Cl2CoN4O12S2
  38. Crystal structure of bis{N′-[1,3-diphenylprop-2-en-1-ylidene]-N-phenylcarbamohydrazonothioato}zinc(II), C44H36N6S2Zn
  39. Crystal structure of tetraaqua-bis(((4-chlorophenyl)sulfonyl)glycinato-κO)cobalt(II) dihydrate, C16H26Cl2CoN2O14S2
  40. Crystal structure of 2-(5-phenyl-1-(quinolin-2-yl)-4,5-dihydro-1H-pyrazol-3-yl)phenol, C24H19N3O
  41. Crystal structure of 2-((2-fluoro-4-(trifluoromethyl)phenyl)(hydroxy)methyl)-7-methoxy-3,4-dihydronaphthalen-1((2H))-one, C19H16F4O3
  42. Crystal structure of 2-amino-4-(2-fluoro-3-(trifluoromethyl)phenyl)-9-methoxy-1,4,5,6-tetrahydrobenzo[h]quinazolin-3-ium chloride, C20H18ClF4N3O
  43. Crystal structure of (2-phenylimino methylquinoline-κ 2 N,N′)-bis(1–phenylpyrazole-κ 2 C,N)-iridium(III) hexafluorophosphate, C34H26F6IrN6P
  44. Crystal structure of (3-hydroxy-4-methoxyphenyl)(pyrrolidin-1-yl)methanone, C12H15NO3
  45. The crystal structure of bis(trimethylsulfoxonium) catena-poly[µ2-hexabromido-indium(III)sodium(I)] C6H18O2S2NaInBr6
  46. Crystal structure of N-cyclopropyl-3-hydroxy-4-methoxybenzamide, C11H13NO3
  47. The crystal structure of (bis(benzimidazol-2-yl-methyl)amine-κ3N,N′,N″ )-(dihydrogen L-malate-κ2O,O ′)copper(II) perchlorate dihydrate, CuC20H24ClN5O12
  48. Crystal structure of (1E,1′E)-4,4′-(9,9-diethyl-9H-fluorene-2,7-diyl)dibenzaldehyde dioxime, C31H28N2O2
  49. Crystal structure of diethyl 1,9-bis(4-fluorophenyl)-4,6-diphenylhexahydro-3H-2,7,3,5-(epimethanetriyliminomethanetriyl)cyclopenta [b]pyridine-3,7(2H)-dicarboxylate, C40H36F2N2O4
  50. Crystal structure of bis(benzene-1 carboxylato-O 3,5-carboxyl-κ1O)-[(5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane-κ4N,N′,N′′,N′′′)nickel(II) ─ benzene-1,3,5-tricarboxylic acid ─ water (1/2/4), C52H66N4NiO28
  51. Crystal structure of 1,4-dibromo-2,5-bis(2-methoxyethoxy)benzene-1,4-diol, C12H16Br2O4
  52. Crystal structure of dicarbonyl[N,N′-(1,2-dimethyl-1,2-ethanediylidene)bis[2,6-bis(1-methylethyl)benzenamine]-N,N′]nickel(0), C30H40N2NiO2
  53. Crystal structure of 1,4-dibromo-2,5-bis(prop-2-yn-1-yloxy)benzene, C12H8Br2O2
  54. Crystal structure of O-(3-(benzo[d]thiazol-2-yl)naphthalen-2-yl) O-phenyl carbonothioate, C24H15NO2S2
  55. The crystal structure of (E)-4-fluoro-N′-(1-(4-hydroxyphenyl)propylidene)benzohydrazide, C16H15FN2O2
  56. Crystal structure of (E)-1-(benzo[d]thiazol-2-yl)-N-(4,5-dihydropyren-2-yl)methanimine, C24H16N2S
  57. Crystal structure of 3-((4-bromophenyl)thio)-1H-indole, C14H10BrNS
  58. Synthesis and crystal structure of 1-((7-hydroxy-3-(4-hydroxy-3-nitrophenyl)-4-oxo-4H-chromen-8-yl)methyl)piperidin-1-ium-4-carboxylate monohydrate, C22H22N2O9
  59. Synthesis and crystal structure of (3E,5S,10S,13S,14S,17Z)-17-ethylidene-10,13-dimethylhexadecahydro-3H-cyclopenta[α]phenanthren-3-one O-(methacryloyl) oxime, C50H74N2O4
  60. Crystal structure of the hydrogen storage active phase La12Mg46LiMn
  61. The crystal structure of the salt: 4-((1,3-dioxoisoindolin-2-yl)carbamoyl)pyridine-1-ium 2-carboxybenzoate, C14H10N3O3·C8H5O4
  62. Crystal structure of (2-(2-pyridine)-benzimidazole-κ2 N,N′)-bis(1-phenylpyrazole-κ2 C,N)iridium(III) hexafluorophosphate, C30H22F6IrN7P
  63. Crystal structure of dichlorido-bis[2-(2,4-difluorophenyl)pyridine-κ1N]platinum(II), C22H14Cl2F4N2Pt
  64. Crystal structure of (5R,8R,9R,10R,12R,13R,14R, 17S,17Z)-2-((3-fluoropyridin-4-yl)methylene)-12-hydroxy-4,4,8,10,14-pentamethyl-17-((R)-2,6,6-trimethyltetrahydro-2H-pyran-2-yl)hexadecahydro-3H-cyclopenta[a]phenanthren-3-one, C36H52FNO3
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