Home Crystal structure of 4a-hydroxy-9-(3,5-dibromo-phenyl)-3,4,4a,5,6,7,9,9a-octahydro-2H-xanthene-1,8-dione, C19H18Br2O4
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Crystal structure of 4a-hydroxy-9-(3,5-dibromo-phenyl)-3,4,4a,5,6,7,9,9a-octahydro-2H-xanthene-1,8-dione, C19H18Br2O4

  • Jing Li , Weiwei Zhou and Feng Sui EMAIL logo
Published/Copyright: January 6, 2017
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Zeitschrift für Kristallographie - New Crystal Structures
From the journal Zeitschrift für Kristallographie - New Crystal Structures Volume 232 Issue 2

Abstract

C19H18Br2O4, monoclinic, P21/n (no. 14), a = 14.323(3) Å, b = 7.6704(17) Å, c = 17.112(4) Å, β = 111.948(4)°, V = 1743.7(7) Å3, Z = 4, Rgt(F) = 0.0530, wRref(F2) = 0.1219, T = 296(2) K.

CCDC no.:: 1521061

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.

Table 1:

Data collection and handling.

Crystal:Colourless block
Size:0.29 × 0.25 × 0.21 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:46.7 cm−1
Diffractometer, scan mode:Bruker APEX-II, φ and ω
2θmax, completeness:50°, >95%
N(hkl)measured, N(hkl)unique, Rint:8516, 2915, 0.062
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 2027
N(param)refined:226
Programs:Bruker programs [6], SHELX [7]
Table 2:

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

AtomxyzUiso*/Ueq
Br11.00650(5)0.81925(8)0.06462(4)0.0470(2)
Br21.23178(5)0.21928(9)0.19884(4)0.0482(2)
O10.6541(3)0.0622(5)0.0879(2)0.0410(10)
H1A0.6417−0.00620.11960.061*
O20.7948(3)−0.1207(4)0.1317(2)0.0285(9)
O30.7062(3)0.4095(5)−0.0087(2)0.0522(12)
O40.9010(3)0.3606(5)0.3078(2)0.0379(10)
C11.0118(4)0.5872(6)0.1046(3)0.0271(13)
C21.1035(4)0.5026(7)0.1288(3)0.0292(13)
H2A1.15980.55470.12390.035*
C31.1068(4)0.3366(7)0.1606(3)0.0277(13)
C41.0249(4)0.2575(7)0.1664(3)0.0270(13)
H4A1.03040.14520.18820.032*
C50.9334(4)0.3432(6)0.1402(3)0.0222(12)
C60.9283(4)0.5132(6)0.1099(3)0.0267(13)
H6A0.86830.57530.09350.032*
C70.8390(4)0.2519(6)0.1398(3)0.0232(12)
H7A0.79130.33990.14370.028*
C80.7906(4)0.1511(7)0.0580(3)0.0270(13)
H8A0.84570.10840.04240.032*
C90.7230(4)0.2596(8)−0.0158(3)0.0315(14)
C100.6782(5)0.1608(7)−0.0964(3)0.0389(15)
H10A0.73090.1302−0.11660.047*
H10B0.63020.2346−0.13840.047*
C110.6258(5)−0.0039(7)−0.0856(3)0.0413(15)
H11A0.6054−0.0715−0.13720.050*
H11B0.56550.0274−0.07560.050*
C120.6933(5)−0.1150(7)−0.0127(3)0.0330(14)
H12A0.6554−0.2128−0.00390.040*
H12B0.7490−0.1606−0.02570.040*
C130.7326(4)−0.0058(7)0.0654(3)0.0284(13)
C140.8474(4)−0.0434(6)0.2061(3)0.0225(12)
C150.8636(4)0.1273(7)0.2143(3)0.0256(13)
C160.8988(4)0.2017(7)0.2986(3)0.0318(14)
C170.9251(5)0.0807(8)0.3723(3)0.0417(16)
H17A0.97840.13220.42010.050*
H17B0.86680.06580.38750.050*
C180.9586(5)−0.0934(8)0.3538(4)0.0425(16)
H18A0.9692−0.17060.40120.051*
H18B1.0222−0.08080.34640.051*
C190.8818(4)−0.1731(7)0.2753(3)0.0325(14)
H19A0.9113−0.27230.25790.039*
H19B0.8246−0.21440.28740.039*

Source of material

The title compound was synthesized according to a reported procedure [1]. A mixture of 3,5-cyclohexanedione (20 mmol) and 3,5-dibromo-benzaldehyde (10 mmol) in ethanol (100 mL) was refluxed for 2–3 h and then cooled to room temperature. After filtering the precipitates, they were sequentially washed with ice-cooled water and ethanol and then dried under vacuum.

Experimental details

Hydrogen atoms were placed in calculated positions and were included in the refinement in the riding model approximation, with Uiso(H) set to 1.2Ueq(C) and 1.5Ueq(O).

Discussion

Bis-enone derivatives are widely available in nature. Some derivatives exhibit biological activities, such as anticoagulant, insecticidal, antihelminthic, hypnotic, and antifungal activities, phytoalexin production, and HIV protease inhibition [2], [3], [4]. Moreover, these compounds are gaining increasing interest because of their versatile activities through chemical modifications (different substituents at the phenyl moiety) [5]. Recognizing the considerable importance of the compounds, research focused on the synthesis of bis-enone derivatives.

In the crystal structure of the title compound, the central six-membered ring containing one oxygen atom is almost perpendicular to the dibromo-phenyl moiety. The mean planes of the two annulated six-membered rings are almost parallel to the aforementioned oxan-2-enyl moiety.

Funding source: National Natural Science Foundation of China

Award Identifier / Grant number: 81274112

Award Identifier / Grant number: 81373986

Award Identifier / Grant number: 81473372

Funding statement: This work was supported by grants from the National Natural Science Foundation of China (81274112; 81373986; 81473372) and Beijing Municipal Natural Science Foundation (7152106).

Acknowledgements

This work was supported by grants from the National Natural Science Foundation of China (81274112; 81373986; 81473372) and Beijing Municipal Natural Science Foundation (7152106).

References

1 Hilgeroth, A.; Langner, A.: Plasma protein binding properties of dimeric 4-aryl-1,4-dihydropyridines as novel non peptidic HIV-1 protease inhibitors. Pharmazie 55 (2000) 542–543.Search in Google Scholar

2 Ghorbani-Choghamarani, A.; Azadi, G.: Synthesis, characterization, and application of Fe3O4-SA-PPCA as a novel nanomagnetic reusable catalyst for theefficient synthesis of 2,3-dihydroquinazolin-4(1H)-ones and polyhydroquinolines. RSC Adv. 5 (2015) 9752–9758.10.1039/C4RA15315DSearch in Google Scholar

3 Hilgeroth, A.; Heinemann, F. W.: Novel solid-state synthesis of dimeric 4-aryl-1,4-dihydropyridines. J. Heterocycl. Chem. 35 (1998) 359–364.10.1002/jhet.5570350217Search in Google Scholar

4 Hilgeroth, A.; Wiese, M.; Billich, A.: Synthesis and biological evaluation of the first N-alkyl cage dimeric 4-aryl-1,4-dihydropyridines as novel nonpeptidic HIV-1 protease inhibitors. J. Med. Chem. 42 (1999) 4729–4732.10.1021/jm991115kSearch in Google Scholar

5 Hilgeroth, A.; Billich, A.; Lilie, H.: Synthesis and biological evaluation of first N-alkyl syn dimeric 4-aryl-1,4-dihydropyridines as competitive HIV-1 protease inhibitors. Eur. J. Med. Chem. 36 (2001) 367–374.10.1016/S0223-5234(01)01228-4Search in Google Scholar

6 Bruker. APEX2, SAINT and SADABS. Brucker AXS Inc., Madison, Wisconsin, USA, 2009.Search in Google Scholar

7 Sheldrick, G. M.: A short history of SHELX. Acta Crystallogr. A64 (2008) 112–122.10.1107/S0108767307043930Search in Google Scholar PubMed

Received: 2016-8-16
Accepted: 2016-12-6
Published Online: 2017-1-6
Published in Print: 2017-3-1

©2016 Jing Li et al., published by De Gruyter.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Articles in the same Issue

  1. Cover and Frontmatter
  2. The crystal structure of triphenylphosphineoxide – 2,5-dichloro-3,6-dihydroxycyclohexa-2,5-diene-1,4-dione (2/1), C42H32Cl2O6P2
  3. Crystal structure of poly-[diaqua-[bis(μ2-hydroxy)-bis(μ4-3,4,5,6-tetrachlorophthalato-κ3O,O′:O′; κ2O′′:O′′′)dilanthanum(III)], C8H3Cl4LaO6
  4. Crystal structure of 1,1′-(3,4-diphenylthieno[2,3-b]thiophene-2,5-diyl)bis[1-phenyl-methanone], C32H20O2S2
  5. Crystal structure of 4a-hydroxy-9-(3,5-dibromo-phenyl)-3,4,4a,5,6,7,9,9a-octahydro-2H-xanthene-1,8-dione, C19H18Br2O4
  6. Crystal structure of 5-hydroxy-4,6,9,10-tetramethyl-1-oxo-6-vinyldecahydro-3a,9-propanocyclopenta[8]annulen-8-yl 2-((2-methyl-1-(3-methylbenzamido)propan-2-yl)thio)acetate, C34H49NO5S
  7. Crystal structure of pyridinium bis(naphthalane-2,3-diolato-κ2O,O′)borate monohydrate, C25H20BNO5
  8. Crystal structure of 1,1′-((1E,1′E)-(((ethane-1,2-diylbis(oxy))bis(2,1-phenylene))bis(azanylylidene))bis(methanylylidene))bis(naphthalen-2-olato)nickel(II), C72H52N4O8Ni2
  9. The crystal structure of 3-(2-acetyl-4-butyramido-phenoxy)-2-hydroxy-N-isopropylpropan-1-aminium tetraphenylborate, C42H49BN2O4
  10. Crystal structure of 4-bromobenzyl (Z)-N′-(adamantan-1-yl)-4-phenylpiperazine-1-carbothioimidate, C28H34BrN3S
  11. Crystal structure of poly-[(μ6-benzene-1,2,4,5-tetracarboxylato)-(μ2-1,2-bis(imidazol-1-ylmethyl)benzene)dicobalt(II)], Co2C24H16N4O8
  12. Crystal structure of catena-(bis(μ2-1, 2-bis(imidazole-1-ylmethyl)benzene-κN:N′)-dichlororido-nickel(II)), C28H28Cl2N8Ni
  13. Crystal structure of (Z)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-hydroxy-3-(4-methoxyphenyl)prop-2-en-1-one, C15H16N2O3
  14. Crystal structure of (Z)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-hydroxy-3-phenylprop-2-en-1-one, C14H14N2O2
  15. Crystal structure of (E)-2-(4-hydroxy-3-methoxybenzylidene)-6-methoxy-3,4-dihydronaphthalen-1(2H)-one, C19H18O4
  16. Crystal structure of (Z)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-(4-ethoxyphenyl)-3-hydroxyprop-2-en-1-one, C16H18N2O3
  17. Crystal structure of (Z)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-hydroxy-3-(p-toly)prop-2-en-1-one, C15H16N2O2
  18. Crystal structure of 1-acetyl-3-(3-chlorophenyl)-5-(4-isopropylphenyl)-4,5-dihydro-(1H)-pyrazole, C20H21ClN2O
  19. The crystal structure of 1-methyl-2,4-dinitro-5-iodoimidazole, C4H3IN4O4
  20. The crystal structure of 4-chloro-3,5-dinitroaniline, C6H4ClN3O4
  21. Crystal structure of N,N-dimethyl-N′-(2-methyl-4-oxo-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-3(4H)-yl)formimidamide, C14H18N4OS
  22. Crystal structure of tetrakis(μ2-acetato-κ2O:O′)-bis[μ3-4-chloro-2,6-bis((methylimino)methyl)phenolato-κ2N,O:O,N′]-(μ4-oxido)tetracopper(II), C28H32Cl2Cu4N4O11
  23. Crystal structure of catena-poly[diaqua-bis(μ2-ethane-1,2-diyl-bis(pyridine-3-carboxylate-κ2N:N′))copper(II)] dinitrate, C28H28CuN6O16
  24. Synthesis and crystal structure of catena-poly[(μ2-nicotinato-κ2O,O′: κ1N)-(nitrato-κ1O)-(bis(2-benzimidazol-ylmethyl)amine-κ3N,N′,N′′)lead(II)], C22H18N7O5Pb
  25. The twinned crystal structure of (4SR)-7-benzyl-2,4,8,8-tetramethyl-7,8-dihydroimidazo[5,1-c][1,2,4]triazine-3,6(2H,4H)-dione, C16H20N4O2
  26. Crystal structure of (Z)-3-hydroxy-3-(4-methoxyphenyl)-1-(pyridin-2-yl)prop-2-en-1-one, C15H13NO3
  27. Crystal structure of 2-amino-4-(2,3-dichlorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C16H12Cl2N2O2
  28. Crystal structure of catena-poly[(μ2-butane-1,4-diyl-bis(pyridine-3-carboxylato-κN))silver(I)] tetrafluoroborate, C16H16AgN2O4BF4
  29. Crystal structure of poly[diaqua-(1,10-phenanthroline-κ2N,N′)-(μ2-2,5-dihydroxytere-phthalato)-bis(μ4-2,5-dihydroxyterephthalato)dicerium(III)], C24H16CeN2O10
  30. Crystal structure of 5,7,4′-trihydroxy-3,8,3′-trymethoxyflavone, C18H16O8
  31. Crystal structure of N-(3,4-dichlorobenzylidene)-4-methylaniline, C14H11Cl2N
  32. Crystal structure of 4-(3-Methoxy-phenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylic acid ethyl ester, C22H27NO4
  33. Crystal structure of 2-amino-4-(3-fluorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C16H13FN2O2
  34. Crystal structure of 1,1,(3,4-dihydroxythieno[2,3-b] thiophene-2,5-diyl)bis(2-bromoethanone), C10H6Br2O4S2
  35. The crystal structure of N,N′-(4,4′-oxydibenzyl)-bisisonicotinamide 3.5 hydrate, C24H24N4O6
  36. Crystal structure of catena-poly[hexakis(μ2-chlorido)-hexakis(4-(1H-pyrazol-5-yl)pyridine-κN)tricadmium(II)], Cd3C48H42Cl6N18
  37. Crystal structure of 2-(4-(dimethylamino)phenyl)-1,3-dimethyl-1H-perimidin-3-ium iodide, C21H22I1N3
  38. Crystal structure of 4-(1,3-dimethyl-2,3-dihydro-1H-perimidin-2-yl)benzonitrile, C20H17N3
  39. Crystal structure of tetrakis(μ2-acetato-κ2O:O′)-bis(2,2′-sulfonyldipyrazine-κ1N)dicopper(II), C24H24Cu2N8O12S2
  40. Crystal structure of 1-(4-chlorophenyl)-6,8-diphenyl-1H-pyrazolo[4,3-c]quinoline, C28H18ClN3
  41. Crystal structure of methyl 3-((1-(2-(methoxycarbonyl)benzyl)-1H-1,2,3-triazol-4-yl)methoxy)-2-naphthoate, C24H21N3O5
  42. Crystal structure of (tris(2-pyridylmethyl)amine-κ4N,N′,N′′,N′′′′)-chloranilato-κO,O′-zinc(II) – methanol (1/1), C25H22Cl2N4O5Zn
  43. Crystal structure of 1,1-dimethyl-3-(4-methoxyphenyl)urea, C10H14N2O2
  44. Crystal structure of 4a-Hydroxy-9-(2-nitro-phenyl)-3,4,4a,5,6,7,9,9a-octahydro-2H-xanthene-1,8-dione, C19H19NO6
  45. Crystal structure of chlorido-(η6–1-isopropyl-4-methyl benzene)-(1-(pyridin-2-yl)-N-(p-tolyl)methanimine-κ2N,N′)ruthenium(II) hexafluorophosphate(V), C23H26ClF6N2PRu
  46. Crystal structure of phenyl(2-phenyl-2,3-dihydro-1H-perimidin-2-yl)methanone, C24H18N2O
  47. Crystal structure of (E)-3-methyl-4-((3-(5-methyl-1-phenyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazol-4-yl)methylene)-1-phenyl-1H-pyrazol-5(4H)-one, C29H23N7O
  48. Crystal structure of 2-(4-(2-butyl-1,3-dioxo-2,3-dihydro-1H-benzo[de]isoquinolin-6-yl)piperazin-1-yl)-2-oxoethyldiethylcarbamodithioate, C27H34N4O3S2
  49. Crystal structure of poly-[diaqua-bis(μ-4,4′-bipyridine-κ2N:N′)cobalt(II)] bis(4-chlorobenzenesulfonate) – 4,4′-bipyridine – water (1/1/2), C42H40Cl2CoN6O10S2
  50. Crystal structure of (η6-benzene)-(N-(2,6-dimethylphenyl)-1-(pyridin-2-yl)methanimine-κ2N,N′)ruthenium(II) perchlorate monohydrate, C20H20Cl2N2O5Ru
  51. Crystal structure of 4,10,16,22-tetrahydroxy-6,12,18,24-tetramethoxy-2,8,14,20-tetraethylphenylresorcin[4]arene – ethyl acetate (1/1), C68H72O10
  52. Crystal structure of chlorido-(N-(2,5-dichlorophenyl)-1-(pyridin-2-yl)methanimine-κ2N,N′)(η6-1-isopropyl-4-methyl benzene) ruthenium (II) tetrafluoroborate, C22H22Cl3N2BF4Ru
  53. Crystal structure of 3-(5-methyl-1-p-tolyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazole-4-carbaldehyde, a rare Z′ = 3 structure, C20H17N5O
  54. Crystal structure of 5-(5-(4-chlorophenyl)-1-phenyl-1H-pyrazol-3-yl)-N-phenyl-1,3,4-thiadiazol-2-amine, C23H16ClN5S
  55. Crystal structure of 7-hydroxy-3-(4-hydroxyphenyl)-4H-1-benzopyran-4-one-N,N-dimethylformamide (1/1), C18H17NO5
  56. Crystal structure of halogen-bonded 2-chloro-1,10-phenanthroline—1,4-diiodotetrafluorobenzene (2/1), C30H14Cl2F4I2N4
  57. Crystal structure of 1-(4,4-dimethyl-2,6-dithioxo-1,3,5-triazinan-1-yl)-3-(diethylaminocarbonyl)thiourea, C11H20N6OS3
  58. Crystal structure of methyl 1-(4-fluorobenzyl)-3-phenyl-1H-pyrazole-5-carboxylate, C18H15FN2O2
  59. Crystal structure of 1,1-dimethyl-3-(4-methylphenyl)urea, C10H14N2O
  60. Crystal structure of yttrium gallium antimonide, Y5Ga1.24Sb2.77
  61. Crystal structure of 2-(bis(4-methoxyphenyl)amino)-2-oxoacetic acid, C16H15NO5
https://doi.org/10.1515/ncrs-2016-0174
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Articles in the same Issue

  1. Cover and Frontmatter
  2. The crystal structure of triphenylphosphineoxide – 2,5-dichloro-3,6-dihydroxycyclohexa-2,5-diene-1,4-dione (2/1), C42H32Cl2O6P2
  3. Crystal structure of poly-[diaqua-[bis(μ2-hydroxy)-bis(μ4-3,4,5,6-tetrachlorophthalato-κ3O,O′:O′; κ2O′′:O′′′)dilanthanum(III)], C8H3Cl4LaO6
  4. Crystal structure of 1,1′-(3,4-diphenylthieno[2,3-b]thiophene-2,5-diyl)bis[1-phenyl-methanone], C32H20O2S2
  5. Crystal structure of 4a-hydroxy-9-(3,5-dibromo-phenyl)-3,4,4a,5,6,7,9,9a-octahydro-2H-xanthene-1,8-dione, C19H18Br2O4
  6. Crystal structure of 5-hydroxy-4,6,9,10-tetramethyl-1-oxo-6-vinyldecahydro-3a,9-propanocyclopenta[8]annulen-8-yl 2-((2-methyl-1-(3-methylbenzamido)propan-2-yl)thio)acetate, C34H49NO5S
  7. Crystal structure of pyridinium bis(naphthalane-2,3-diolato-κ2O,O′)borate monohydrate, C25H20BNO5
  8. Crystal structure of 1,1′-((1E,1′E)-(((ethane-1,2-diylbis(oxy))bis(2,1-phenylene))bis(azanylylidene))bis(methanylylidene))bis(naphthalen-2-olato)nickel(II), C72H52N4O8Ni2
  9. The crystal structure of 3-(2-acetyl-4-butyramido-phenoxy)-2-hydroxy-N-isopropylpropan-1-aminium tetraphenylborate, C42H49BN2O4
  10. Crystal structure of 4-bromobenzyl (Z)-N′-(adamantan-1-yl)-4-phenylpiperazine-1-carbothioimidate, C28H34BrN3S
  11. Crystal structure of poly-[(μ6-benzene-1,2,4,5-tetracarboxylato)-(μ2-1,2-bis(imidazol-1-ylmethyl)benzene)dicobalt(II)], Co2C24H16N4O8
  12. Crystal structure of catena-(bis(μ2-1, 2-bis(imidazole-1-ylmethyl)benzene-κN:N′)-dichlororido-nickel(II)), C28H28Cl2N8Ni
  13. Crystal structure of (Z)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-hydroxy-3-(4-methoxyphenyl)prop-2-en-1-one, C15H16N2O3
  14. Crystal structure of (Z)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-hydroxy-3-phenylprop-2-en-1-one, C14H14N2O2
  15. Crystal structure of (E)-2-(4-hydroxy-3-methoxybenzylidene)-6-methoxy-3,4-dihydronaphthalen-1(2H)-one, C19H18O4
  16. Crystal structure of (Z)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-(4-ethoxyphenyl)-3-hydroxyprop-2-en-1-one, C16H18N2O3
  17. Crystal structure of (Z)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-hydroxy-3-(p-toly)prop-2-en-1-one, C15H16N2O2
  18. Crystal structure of 1-acetyl-3-(3-chlorophenyl)-5-(4-isopropylphenyl)-4,5-dihydro-(1H)-pyrazole, C20H21ClN2O
  19. The crystal structure of 1-methyl-2,4-dinitro-5-iodoimidazole, C4H3IN4O4
  20. The crystal structure of 4-chloro-3,5-dinitroaniline, C6H4ClN3O4
  21. Crystal structure of N,N-dimethyl-N′-(2-methyl-4-oxo-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-3(4H)-yl)formimidamide, C14H18N4OS
  22. Crystal structure of tetrakis(μ2-acetato-κ2O:O′)-bis[μ3-4-chloro-2,6-bis((methylimino)methyl)phenolato-κ2N,O:O,N′]-(μ4-oxido)tetracopper(II), C28H32Cl2Cu4N4O11
  23. Crystal structure of catena-poly[diaqua-bis(μ2-ethane-1,2-diyl-bis(pyridine-3-carboxylate-κ2N:N′))copper(II)] dinitrate, C28H28CuN6O16
  24. Synthesis and crystal structure of catena-poly[(μ2-nicotinato-κ2O,O′: κ1N)-(nitrato-κ1O)-(bis(2-benzimidazol-ylmethyl)amine-κ3N,N′,N′′)lead(II)], C22H18N7O5Pb
  25. The twinned crystal structure of (4SR)-7-benzyl-2,4,8,8-tetramethyl-7,8-dihydroimidazo[5,1-c][1,2,4]triazine-3,6(2H,4H)-dione, C16H20N4O2
  26. Crystal structure of (Z)-3-hydroxy-3-(4-methoxyphenyl)-1-(pyridin-2-yl)prop-2-en-1-one, C15H13NO3
  27. Crystal structure of 2-amino-4-(2,3-dichlorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C16H12Cl2N2O2
  28. Crystal structure of catena-poly[(μ2-butane-1,4-diyl-bis(pyridine-3-carboxylato-κN))silver(I)] tetrafluoroborate, C16H16AgN2O4BF4
  29. Crystal structure of poly[diaqua-(1,10-phenanthroline-κ2N,N′)-(μ2-2,5-dihydroxytere-phthalato)-bis(μ4-2,5-dihydroxyterephthalato)dicerium(III)], C24H16CeN2O10
  30. Crystal structure of 5,7,4′-trihydroxy-3,8,3′-trymethoxyflavone, C18H16O8
  31. Crystal structure of N-(3,4-dichlorobenzylidene)-4-methylaniline, C14H11Cl2N
  32. Crystal structure of 4-(3-Methoxy-phenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylic acid ethyl ester, C22H27NO4
  33. Crystal structure of 2-amino-4-(3-fluorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C16H13FN2O2
  34. Crystal structure of 1,1,(3,4-dihydroxythieno[2,3-b] thiophene-2,5-diyl)bis(2-bromoethanone), C10H6Br2O4S2
  35. The crystal structure of N,N′-(4,4′-oxydibenzyl)-bisisonicotinamide 3.5 hydrate, C24H24N4O6
  36. Crystal structure of catena-poly[hexakis(μ2-chlorido)-hexakis(4-(1H-pyrazol-5-yl)pyridine-κN)tricadmium(II)], Cd3C48H42Cl6N18
  37. Crystal structure of 2-(4-(dimethylamino)phenyl)-1,3-dimethyl-1H-perimidin-3-ium iodide, C21H22I1N3
  38. Crystal structure of 4-(1,3-dimethyl-2,3-dihydro-1H-perimidin-2-yl)benzonitrile, C20H17N3
  39. Crystal structure of tetrakis(μ2-acetato-κ2O:O′)-bis(2,2′-sulfonyldipyrazine-κ1N)dicopper(II), C24H24Cu2N8O12S2
  40. Crystal structure of 1-(4-chlorophenyl)-6,8-diphenyl-1H-pyrazolo[4,3-c]quinoline, C28H18ClN3
  41. Crystal structure of methyl 3-((1-(2-(methoxycarbonyl)benzyl)-1H-1,2,3-triazol-4-yl)methoxy)-2-naphthoate, C24H21N3O5
  42. Crystal structure of (tris(2-pyridylmethyl)amine-κ4N,N′,N′′,N′′′′)-chloranilato-κO,O′-zinc(II) – methanol (1/1), C25H22Cl2N4O5Zn
  43. Crystal structure of 1,1-dimethyl-3-(4-methoxyphenyl)urea, C10H14N2O2
  44. Crystal structure of 4a-Hydroxy-9-(2-nitro-phenyl)-3,4,4a,5,6,7,9,9a-octahydro-2H-xanthene-1,8-dione, C19H19NO6
  45. Crystal structure of chlorido-(η6–1-isopropyl-4-methyl benzene)-(1-(pyridin-2-yl)-N-(p-tolyl)methanimine-κ2N,N′)ruthenium(II) hexafluorophosphate(V), C23H26ClF6N2PRu
  46. Crystal structure of phenyl(2-phenyl-2,3-dihydro-1H-perimidin-2-yl)methanone, C24H18N2O
  47. Crystal structure of (E)-3-methyl-4-((3-(5-methyl-1-phenyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazol-4-yl)methylene)-1-phenyl-1H-pyrazol-5(4H)-one, C29H23N7O
  48. Crystal structure of 2-(4-(2-butyl-1,3-dioxo-2,3-dihydro-1H-benzo[de]isoquinolin-6-yl)piperazin-1-yl)-2-oxoethyldiethylcarbamodithioate, C27H34N4O3S2
  49. Crystal structure of poly-[diaqua-bis(μ-4,4′-bipyridine-κ2N:N′)cobalt(II)] bis(4-chlorobenzenesulfonate) – 4,4′-bipyridine – water (1/1/2), C42H40Cl2CoN6O10S2
  50. Crystal structure of (η6-benzene)-(N-(2,6-dimethylphenyl)-1-(pyridin-2-yl)methanimine-κ2N,N′)ruthenium(II) perchlorate monohydrate, C20H20Cl2N2O5Ru
  51. Crystal structure of 4,10,16,22-tetrahydroxy-6,12,18,24-tetramethoxy-2,8,14,20-tetraethylphenylresorcin[4]arene – ethyl acetate (1/1), C68H72O10
  52. Crystal structure of chlorido-(N-(2,5-dichlorophenyl)-1-(pyridin-2-yl)methanimine-κ2N,N′)(η6-1-isopropyl-4-methyl benzene) ruthenium (II) tetrafluoroborate, C22H22Cl3N2BF4Ru
  53. Crystal structure of 3-(5-methyl-1-p-tolyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazole-4-carbaldehyde, a rare Z′ = 3 structure, C20H17N5O
  54. Crystal structure of 5-(5-(4-chlorophenyl)-1-phenyl-1H-pyrazol-3-yl)-N-phenyl-1,3,4-thiadiazol-2-amine, C23H16ClN5S
  55. Crystal structure of 7-hydroxy-3-(4-hydroxyphenyl)-4H-1-benzopyran-4-one-N,N-dimethylformamide (1/1), C18H17NO5
  56. Crystal structure of halogen-bonded 2-chloro-1,10-phenanthroline—1,4-diiodotetrafluorobenzene (2/1), C30H14Cl2F4I2N4
  57. Crystal structure of 1-(4,4-dimethyl-2,6-dithioxo-1,3,5-triazinan-1-yl)-3-(diethylaminocarbonyl)thiourea, C11H20N6OS3
  58. Crystal structure of methyl 1-(4-fluorobenzyl)-3-phenyl-1H-pyrazole-5-carboxylate, C18H15FN2O2
  59. Crystal structure of 1,1-dimethyl-3-(4-methylphenyl)urea, C10H14N2O
  60. Crystal structure of yttrium gallium antimonide, Y5Ga1.24Sb2.77
  61. Crystal structure of 2-(bis(4-methoxyphenyl)amino)-2-oxoacetic acid, C16H15NO5
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