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Crystal structure of 3-(thiophen-2-yl)-5-(p-tolyl)-4,5-dihydro-1H-pyrazole-1-carboxamide

  • Assem Barakat , Naveen Shivalingegowda , Nagamallu Renuka , Ajay Kumar Kariyappa , Muneer Abdoh , Ismail Warad EMAIL logo and Neratur Krishnappagowda Lokanath
Published/Copyright: January 20, 2016
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Zeitschrift für Kristallographie - New Crystal Structures
From the journal Zeitschrift für Kristallographie - New Crystal Structures Volume 231 Issue 1

Abstract

C15H15N3OS, monoclinic, P21/c (No. 14), a = 10.2852(5) Å, b = 10.1649(5) Å, c = 14.7694(8) Å, β = 107.442(2)°, V = 1473.12(13) Å3, Z = 4, Rgt(F) = 0.0449, wRref(F2) = 0.1275, T = 293(2) K.

CCDC no.:: 1401402

The crystal structure is shown in the figure, Tables 1–3 contain details of the measurement method and a list of the atoms including atomic coordinates and displacement parameters.

Table 1

Data collection and handling.

Crystal:Yellow, rectangle, size 0.230×0.250×0.270 mm
Wavelength:Cu Kα radiation (1.54178 Å)
μ:19.42 cm−1
Diffractometer, scan mode:Bruker X8 Proteum, φ and ω scans
2θmax:128.98°
N(hkl)measured, N(hkl)unique:10384, 2414
N(param)refined:183
Programs:Bruker data collection and reduction software [11], SHELX [12], Mercury [13]
Table 2

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

AtomSitexyzUiso
H(3)4e0.33220.91460.70280.074
H(4)4e0.11140.92510.73280.088
H(5)4e0.09180.77160.84850.097
H(9)4e0.80720.77240.76980.054
H(10A)4e0.61470.88480.74580.058
H(10B)4e0.54100.78240.66650.058
H(13A)4e0.87840.48121.01590.087
H(13B)4e0.73120.51600.97930.087
H(15)4e0.90650.70160.65440.076
H(16)4e0.91980.56470.53390.090
H(18)4e0.58760.37600.54580.071
H(19)4e0.57100.51390.66470.064
H(20A)4e0.76510.41210.39370.131
H(20B)4e0.69170.30170.43420.131
H(20C)4e0.85100.31370.47010.131
Table 3

Atomic displacement parameters (Å2).

AtomSitexyzU11U22U33U12U13U23
S(1)4e0.31255(6)0.68794(6)0.87174(4)0.0692(4)0.0719(4)0.0950(5)0.0020(2)0.0427(3)0.0127(3)
O(12)4e0.9473(1)0.5885(1)0.88704(8)0.0451(7)0.0690(8)0.0546(7)0.0074(6)0.0107(5)0.0113(6)
N(7)4e0.6002(1)0.6468(1)0.85632(9)0.0450(8)0.0571(8)0.0464(7)0.0018(6)0.0139(6)0.0042(6)
N(8)4e0.7239(2)0.6363(2)0.8369(1)0.0431(8)0.0676(9)0.0435(7)0.0085(6)0.0119(6)0.0120(6)
N(13)4e0.8121(2)0.5185(2)0.9739(1)0.0564(9)0.095(1)0.066(1)0.0166(9)0.0174(8)0.0365(9)
C(2)4e0.3913(2)0.7667(2)0.7998(1)0.0458(9)0.0488(9)0.0508(9)−0.0022(7)0.0131(7)−0.0071(7)
C(3)4e0.3078(2)0.8608(2)0.7460(1)0.053(1)0.065(1)0.066(1)0.0097(9)0.0179(9)−0.0013(9)
C(4)4e0.1803(2)0.8669(2)0.7635(2)0.053(1)0.076(1)0.091(2)0.012(1)0.020(1)−0.005(1)
C(5)4e0.1691(2)0.7804(3)0.8288(2)0.057(1)0.082(2)0.115(2)−0.002(1)0.043(1)−0.009(1)
C(6)4e0.5272(2)0.7318(2)0.7985(1)0.0439(9)0.0459(9)0.0431(8)−0.0004(7)0.0094(7)−0.0022(7)
C(9)4e0.7288(2)0.7127(2)0.7526(1)0.0421(9)0.0501(9)0.0418(8)−0.0004(7)0.0100(7)0.0054(7)
C(10)4e0.5961(2)0.7922(2)0.7321(1)0.0470(9)0.0489(9)0.0481(9)0.0040(7)0.0119(7)0.0057(7)
C(11)4e0.8349(2)0.5804(2)0.9001(1)0.050(1)0.052(1)0.0428(8)0.0053(8)0.0086(7)0.0038(7)
C(14)4e0.7378(2)0.6230(2)0.6734(1)0.0414(8)0.0470(9)0.0407(8)0.0033(7)0.0071(7)0.0072(6)
C(15)4e0.8413(2)0.6362(2)0.6330(1)0.064(1)0.066(1)0.067(1)−0.0161(9)0.029(1)−0.0108(9)
C(16)4e0.8494(2)0.5531(2)0.5606(2)0.082(2)0.085(2)0.073(1)−0.011(1)0.043(1)−0.014(1)
C(17)4e0.7566(2)0.4540(2)0.5272(1)0.075(1)0.061(1)0.0450(9)0.008(1)0.0106(9)−0.0007(8)
C(18)4e0.6525(2)0.4416(2)0.5674(1)0.057(1)0.054(1)0.056(1)−0.0018(8)0.0002(8)−0.0011(8)
C(19)4e0.6426(2)0.5244(2)0.6391(1)0.0455(9)0.055(1)0.0559(9)−0.0019(8)0.0098(8)0.0023(8)
C(20)4e0.7671(3)0.3620(3)0.4492(2)0.119(2)0.082(2)0.060(1)0.008(1)0.025(1)−0.014(1)

Source of material

A mixture of 3-(4-methylphenyl)-1-(thiophen-2-yl)prop-2-en-1-one (0.001 mol) and semicarbazine hydrochloride (0.01 mol) and potassium hydroxide (0.02 mol) in ethyl alcohol (20 mL) was refluxed on a water bath for 6–8 hrs. The progress of the reaction was monitored by TLC. After completion of the reaction, the mixture was poured into ice cold water and stirred. The solid separated was filtered and washed with ice cold water. The product was recrystallized from ethyl alcohol to get the title compound.

1H NMR (CDCl3): δ 2.297 (s, 3H, CH3), 3.089–3.146 (dd, 1H, C4-Hb; J = 18.0, 8.5 Hz), 3.708–3.781 (dd, 1H, C4-Ha; J = 19.0, 10 Hz), 5.460–5.490 (dd, 1H, C5-Hc; J = 18.5, 9.5 Hz), 5.503 (s, 2H, -NH2), 7.017–7.382 (m, 7H, Ar—H and thiophene ring-H). 13C NMR (CDCl3): δ 21.08 (1C, CH3), 43.72 (1C, C-4), 60.01 (1C, C-5), 125.39 (2C, Ar—C), 127.55 (1C, 5m ring-C), 128.24 (1C, Ar—C), 129.54 (2C, Ar—C), 135.07 (1C, 5m ring-C), 137.24 (1C, 5m ring-C), 139.39 (1C, 5m ring-C), 147.39 (1C, C-3), 150.24 (1C, Ar—C), 155.10 (1C, C=O). MS (m/z): 286 (M+1, 39), 285 (M+, 32), 268 (8), 241 (10), 240 (100) Anal. Calcd. for C15H15N3 OS: C, 63.13; H, 5.30; N, 14.73% Found: C, 63.03; H, 5.20; N, 14.66%. M. P. 168–171° C.

Experimental details

All hydrogen atoms were identified in difference Fourier syntheses. The H atom were fixed geometrically and allowed to ride on their parent atoms: C—H = 0.93–0.98 Å with Uiso(H) = 1.5Ueq(C) for methyl H atoms and 1.2Ueq(C) for other H atoms.

Discussion

The five-membered heterocyclic pyrazole analogues have been extensively used as building blocks in organic synthesis. They have been efficiently transformed into a potential medicinally and pharmaceutically important molecule. Pyrazole derivatives have known to exhibit diverse biological applications such as antidiabetic [1], anaesthetic [2], antimicrobial and antioxidant [3]. In addition, they have also shown potential anticancer [4], antiamoebic [5], potent and selective inhibitors of tissue-nonspecific alkaline phosphatase. Earlier we have synthesized α and β-unsaturated compounds which served as useful intermediates for the synthesis of pyrazolines [6] and thiazepines [7]. As a part of our ongoing research on pyrazoles [8], the synthesis, characterization and the structural structure determination was undertaken.

The molecular structure of the title compound is twisted. The study of torsion angles, assymmetric parameters and least squares plane reveals that the central pyrazole ring adopts a flattened envelope conformation with C9 atom deviating by 0.0588(18) Å from the Cremer and Pople plane [9]. This is confirmed by the puckering amplitude Q = 0.0934(18) Å and φ = 77.2(10) °. The carboxamide group is slightly twisted from the pyrazole ring as indicated by the torsions angles N13—C11—N8—N7 = 10.1(2)° and O12—C11—N8—N7 = −170.01(15)°. The pyrazole ring is nearly coplanar with the thiophene ring as indicated by the dihedral angle value of 6.51° whereas the pyrazole ring is almost orthogonal to the methylphenyl ring as indicated by the dihedral angle value of 86.13(9)°. The thiophene and the methylphenyl ring are inclined at an angle of 83.1(1)° with each other.

The title compound is chiral. In the arbitrarily chosen asymmetric molecule, the compound possess a chiral center at C9 with R conformation. Since the compound crystallizes in a centrosymmetric space group, we can surmise that the compound is a racemic mixture. The molecular conformation is stabilized by a strong intramolecular N–H⋯N hydrogen bond between the nitrogen of the pyrazole ring and the nitrogen of the amide moiety which form S(6) ring motif. In the crystal, the N–H⋯O hydrogen bond links pairs of molecules related by inversion (R22(8) ring motif [10]). The packing of the molecules when viewed down along the a axis indicate that the molecules exhibit layered stacking to form a two dimensional structure.

Corresponding author: Ismail Warad, Department of Chemistry, Science College, An-Najah National University, P.O. Box 7, Nablus, Palestine, e-mail:

Acknowledgements:

The authors would like to extend their sincere appreciation to the Deanship of Scientific Research at King Saud University for its funding this Research group NO (RG -257-1435-1436). The authors are thankful to IOE, Vijnana Bhavana, University of Mysore, Mysore for providing the single-crystal X-ray diffraction facility.

References

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Received: 2015-6-4
Accepted: 2015-12-17
Published Online: 2016-1-20
Published in Print: 2016-3-1

©2016 Assem Barakat et al., published by De Gruyter.

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

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  56. Crystal structure of catena-poly[diaqua-bis(μ2-5-carboxy-2-(pyridin-4-yl)benzoato-κ2O:N)-cobalt(II)]dihydrate, C26H24N2O12Co
  57. Crystal structure of 5-(4-pyridyl)pyrimidine–4,4′-bipyridine–1,3,5-benzenetriol–water (1:1:1:1), C25H23N5O4
  58. Crystal structure of 5-hydroxy-4-((4-hydroxyphenyl)imino)naphthalen-1(4H)-one monohydrate, C16H11NO3 · 0.5H2O
  59. Crystal structure of 2-amino-N-(4-methoxyphenyl)benzamide, C14H14N2O2
  60. Crystal structure of (2,5-dihydroxyphenyl)-(4-hydroxy-3,5-dimethoxyphenyl)methanone, C15H14O6
  61. Crystal structure of dichlorido[bis(2-hydroxyethyl)5′-([2,2′:6′,2′′-terpyridin]-4′-yl)-[1,1′:3′,1′′-terphenyl]-4,4′′-dicarboxylato]zinc(II), C39H31Cl2N3O6Zn
  62. Crystal structure of bis[4-(3-carboxy-6-fluoro-1-(4-fluorophenyl)-4-oxo-1,4-dihydroquinolin-7-yl)piperazin-1-ium] benzene-1,4-dicarboxylate (C20H18F2N3O3)2(C8H4O4), C48H40F4N6O10
  63. Crystal structure of (2,5-dihydroxyphenyl)-(4-methoxyphenyl)methanone, C14H12O4
  64. Crystal structure of photochromic 1-(2-methyl-5-phenyl-3-thienyl-2-[2-methyl-5-(4-ethoxylphenyl)-3-thienyl] 3,3,4,4,5,5-hexafluoro-cyclopent-1-ene, C29H22F6OS2
  65. Crystal structure of poly[diaquabis(μ2-biphenyl-2,4′-dicarboxylato-κ2O:O′)tris(μ2-1,1′-biphenyl-4,4′-diylbis(1H-imidazole)-κ2N:N′)dicobalt(II)] monohydrat, C82H64N12O11Co2
  66. Crystal structure of 2-amino-4-(3,4-difluorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C16H12N2O2F2
  67. Crystal structure of poly[(di-μ2-aqua-κ2O:O)bis(μ5-oxalato-1:2κ2O1; 1κ1O2; 3:4:5κ3O3; 3κ1O4)(μ4-oxalato-1:2κ2O1; 2:3κ2O2; 3:4κ2O3; 4:1κ2O4)dizinc(II)disodium(I)]
  68. Crystal structure of tetraethylammonium hexachloridotantalate(V), C8H20Cl6NTa
  69. Crystal structure of (E)-2,4-dibromo-6-(((2-nitrophenyl)imino)methyl)phenol, C13H8Br2N2O3
  70. The crystal structure of 6-chloro-2,4-diphenylquinoline
  71. Crystal structure of (E)-2-(((1,10-phenanthrolin-5-yl)imino)methyl)-5-methylphenol monohydrate, C20H15N3O·H2O
  72. Crystal structure of tris(3-(2-pyridyl)pyrazole)zinc(II)tetrachlorido zincate(II), C24H21Cl4N9Zn2
  73. Crystal structure of 4-chloro-N,N-diethyl-6-(piperidin-1-yl)-1,3,5-triazin-2-amine, C12H20ClN5
  74. The crystal structure of 4-allyl-5-benzyl-2,4-dihydro-3H-1,2,4-triazol-3-one, C12H13N3O
  75. Crystal structure of diethyl 2-(((2-(pyridin-3-ylthio)phenyl)amino)methylene)malonate, C19H20N2O4S
  76. Crystal structure of fac-tricarbonyl(2-(isopropylimino)methyl-5-methylphenolatido-κ2N,O)(pyridine-κN)rhenium(I), C19H19N2O4Re
  77. Crystal structure of 1,3,6,8-tetrakis(p-tolylthio)pyrene, C44H34S4
  78. Crystal structure of catena-poly-(diaqua-(μ2-1,2-bis(4-pyridyl)ethene-κ2N:N′)-(4-methylphthalato-κ2O,O′)-cobalt(II)trihydrate, C21H26CoN2O9
  79. Crystal structure of tetraethylammonium fac-tricarbonyl(hexafluoroacetylacetonato-κ2O,O′)-(nitrato-κO)rhenium(I), C16H21O8N2F6Re
  80. Crystal structure of 3-(thiophen-2-yl)-5-(p-tolyl)-4,5-dihydro-1H-pyrazole-1-carboxamide
  81. Crystal structure of bis(1-ethyl-3-methylimidazolium) tetrabromidocadmate(II), [C6H11N2]2[CdBr4]
  82. Crystal structure of N′-(adamantan-2-ylidene)-isonicotinohydrazide, C16H19N3O
  83. Crystal structure of trans-tetraaquabis(4-(pyridin-4-ylsulfonyl)pyridine-κN)cobalt(II) diperchlorate dihydrate, C20H28Cl2CoN4O18S2
  84. Crystal structure of (Z)-4-(furan-2-yl(p-tolylamino)methylene)-3-methyl-1-p-tolyl-1H-pyrazol-5(4H)-one, C23H21N3O2
  85. Crystal structure of 2-[(4-fluorobenzyl)sulfanyl]-4-(2-methylpropyl)-6-oxo-1,6-dihydropyrimidine-5-carbonitrile, C16H16FN3OS
  86. Crystal structure of poly[octaaqua-tris(benzene-1,2,4,5-tetracarboxylato)tetralanthanum(III)] hexahydrate, C30H34La4O38
  87. Crystal structure of trans-tetraaqua-bis(4,4′-sulfonyldipyridine-κN)zinc(II) diperchlorate dihydrate, C20H28Cl2ZnN4O18S2
  88. Crystal structure of 4-nitro-thiophene-2-carboxylic acid, a structure with a Z′ = 4, C5H3NO4S
  89. Crystal structure of dirubidium trimercury(II) tetraselenide, Rb2Hg3Se4
  90. Crystal structure of 5-(adamantan-1-yl)-3-[(4-chloroanilino)methyl]-2,3-dihydro-1,3,4-oxadiazole-2-thione, C19H22ClN3OS
  91. Crystal structure of hexaaquamagnesium(II) 5,5′-bitetrazole-1,1′-diolate, C2H12N8O8Mg
  92. The crystal structure of catena-poly[(μ2-1,1′-benzene-1,4-diylbis(1H-benzimidazole-κ2N:N′)silver(I)] nitrate, C20H14N5AgO3
  93. The crystal structure of 1-(2-(4-chlorophenoxy)-4-chlorophenyl)ethanone, C14H10Cl2O2
  94. The crystal structure of 3,5-dinitro-1,3,5-oxadiazinane, C3H6N4O5
  95. Crystal structure of methyl 5-methoxy 1H-indole-2-carboxylate, C11H11NO3
  96. Crystal structure of (Z)-1-(((3-acetyl-2-hydroxyphenyl)amino)methylene)naphthalen-2(1H)-one, C19H15NO3
  97. Crystal structure of (Z)-5-(4-chlorobenzylidene)-2-thioxothiazolidin-4-one —dimethylsulfoxide (1:1), C12H12ClNO2S3
  98. Crystal structure of 5,5′-((4-(trifluoromethyl)phenyl)methylene)bis(1,3-dimethylpyrimidine-2,4,6(1H,3H,5H)-trione) – diethylamine – dichloromethane (1/1/1) C25H32Cl2F3N5O6
  99. Crystal structure of 2-(dimethylsulfanylidene)-N-(4-methoxyphenyl)-3-oxo-3-phenylpropanamide
  100. Crystal structure of (1,10-phenanthroline-κ2N,N′)bis(thiocyanato-κN)platinum(II), C14H8N4PtS2
  101. Crystal structure of di(μ2-chlorido)bis[2-(2-pyridyl)phenyl-κ2N,C1]dipalladium(II), C22H16Cl2N2Pd2
  102. Crystal structure of trans-dibromidodi(pyridine-κN)palladium(II), PdBr2(C5H5N)2
https://doi.org/10.1515/ncrs-2015-0116
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Articles in the same Issue

  1. Cover and Frontmatter
  2. Crystal structure of rac-4,4,4-trifluoro-3-hydroxy-3-methylbutanoic acid, C5H7O2F3
  3. Crystal structure of 5-methyl-2-phenyl-1,3-dioxane-5-carboxylic acid, C12H14O4
  4. Crystal structure of ethyl 2-(2-(2-(4-chlorophenyl)-3-methylbutanamido)thiazol-4-yl)acetate, C18H21ClN2O3S
  5. The crystal structure of (4E,11E,31E,38E)-1,4,12,15,18,26,31,39-Octaaza-7,21,24-trihydroxy-penta-cyclo[13·13·13·16,10·120,24·133,37]tetratetraconta-4,6(44),7,9,11,18,20(43),21,23,25,31,33(42),34,36,38-pentadecaene, C36H42N8O3
  6. Crystal structure of poly[diaqua-μ5-4-(3,5-dicarboxylato-κ3O1:O2:O3-phenoxy)phthalato-κ3O5,O7:O8)(μ2-4-(1H-pyrazol-5-yl)pyridine-κ2N:N′)dicobalt(II)] C24H16N3O11Co2
  7. Crystal structure of catena-poly[(μ2-acetamido-benzoato-κ2O:O′)triphenyltin(IV)], C27H23NO3Sn
  8. Crystal structure of chlorido(2,2′-((1E,1′E)-(((1R,2R)-cyclohexane-1,2-diyl)bis(azanylylidene))bis(methylylidene))diphenolato-κ4N,N′,O,O′)iron(III), C20H20ClFeN2O2
  9. Crystal structure of (E)-3-(4-tert-butyl)phenyl)-1-(3-chlorophenyl)prop-2-en-1-one, C18H17CIO
  10. Crystal structure of trans-1,2-bis(pyridinium-4-yl)ethylene–2-carboxy-4-methylbenzoate (1/2), C30H26N2O8
  11. Crystal structure of poly[aqua-ethylenediamine-tetraacetatolead(II)zinc(II)]
  12. Crystal structure of (E)-2-((2-(2,4-dinitrophenyl)hydrazono)methyl)-4-nitrophenol — triethylamine (2/1), C32H33N11O14
  13. Crystal structure of catena-poly[diaqua-bis-(μ2-5-carboxy-2-(pyridin-4-yl)benzoato-κ2O:N)cadmium(II)] dihydrate, C26H24N2O12Cd
  14. Crystal structure of 2-(ethoxycarbonyl)-2-(2-nitro-1-phenylethyl)-3-oxopyrrolidinium chloride, C15H19N2O5Cl
  15. Crystal structure of 4-((pyridin-4-ylmethyl)sulfinyl)pyridine, C11H10N2OS
  16. Crystal structure of 2,5-diethoxy-1,4-bis[2-(quinoline)ethenyl]benzene, C32H28N2O2
  17. Crystal structure of diaqua(μ2-1,1′-biphenyl-4,4′-diylbis(1H-imidazole)-κ2N:N′)tetrakis(3-carboxy-5-ethylpyridine-2-carboxylato-κ2N,O)dizinc(II), C54H50N8O18Zn2
  18. Crystal structure of a poly[bis(3,4,5,6-tetrachlorophthalato)neodym(III)potassium(I)] — 4,4′-bipyridine — water (1/1/5.5)
  19. The second polymorph of triethylammonium 2,4,6-trisulfanylidene-1,3,5-triazinan-1-ide, C9H18N4S3
  20. Crystal structure of 2,2′-diamino-[1,1′-biphenyl]-4,4′-dicarboxylic acid dihydrate, C14H16N2O6
  21. Crystal structure of the catena-poly[bis(1H-imidazole-κN)-(μ2-furan-2,5-dicarboxylato-κ2O1:O4)manganese(II)]monohydrate, C12H12MnN4O6
  22. Crystal structure of (acetylacetonato-κ2O:O′)bis-((1-(2-hydroxyphenyl)-3-(pyridin-2-yl)prop-2-en-1-one)-κ2C,N)iridium(III), C33H27IrN2O6
  23. Crystal structure of 1-benzyl-3-(4-methylpyridin-2-yl)-1H-imidazol-3-ium hexafluorophosphate, C16H16F6N3P
  24. Crystal structure of tetraethylammonium 3,5-dinitrosalicylate, C15H23N3O7
  25. Crystal structure of 4-[5-(4-fluorophenyl)-3-(4-hydroxyphenyl)-4,5-dihydropyrazol-1-yl] benzenesulfonamide, C21H18FN3O3S
  26. Crystal structure of 2,4-dichlorobenzene anhydride, C14H6Cl4O3
  27. Crystal structure of bis(2-hydroxy-2-phenylacetato-κ2O,O′)bis(pyridine-κN)nickel(II), C26H24N2NiO6
  28. Crystal structure of (E)-4-nitro-2-(((3-(tetrahydro-8λ4-[1,3,2]oxazaborolo[2,3-b][1,3,2]oxaborol-8-yl)phenyl)imino)methyl)phenol – water (1/2), C17H18BN3O5·2H2O
  29. Crystal structure of 5-(4-carboxyphenoxy)-nicotinic acid, C13H9NO5
  30. Crystal structure of catena-poly[hexaaquabis(μ2-3-nitrophthalate-κ2O:O′)-(μ2-1,4-bis(4-pyridylmethyl)piperazine-κ2N:N′)dimanganese(II)] dihydrate, C32H42Mn2N6O20
  31. Crystal structure of diaquabis(bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate-κ4O, O′:/O′′,O′′′)bis-(2,2′-bipyridine-κ2N, N′)dicadmium(II) hydrate
  32. Crystal structure of (R)-1-(1-(6-fluorobenzo[d]thiazol-2-yl)ethyl)-3-phenylthiourea
  33. Crystal structure of poly[(μ2-1,4-bis((1H-imidiazol-1-yl)methyl)benzene-κ2N:N′)-(μ2-4,4′-(1,2-phenylenebis(oxy)dibenzoato-κ4O,O′:O′′,O′′′)nickel(II)], C34H26O6N4Ni
  34. Crystal structure of 3′,4′,5-trihydroxy-3,7-dimethoxyflavone, C17H14O7
  35. Crystal structure of n-butyl-chlorido-bis[N-sec-butyl,N-n-propyl-carbamodithioato κ2S,S′]-tin(IV), C20H41ClN2S4Sn
  36. Crystal structure of poly[bis(μ4-4,4′-(1,2-phenylenebis(oxy))dibenzoato-κ4O:O′:O′′:O′′′)bis(μ3-4,4′-(1,2-phenylenebis(oxy))dibenzoato–κ3O:O′:O′′)(μ2-1-(4-((1H-imidazol-1-yl)methyl)benzyl)-1H-imidazole-κ2N:N′)tetracobalt(II)], C94H62O24N4Co4
  37. Crystal structure of catenapoly[diaqua-(μ24,4′-bipyridine)-κ2N:N′)-bis(2,6-difluorobenzoate)-κO)nickel(II)] ethanol monosolvate, C28H30F4N2O8Ni
  38. Crystal structure of 2-(9H-fluoren-9-ylidene)hydrazine-1-carbothioamide, C14H11N3S
  39. Crystal structure of 2-(4-methoxyphenyl)-2,3-dihydro-1H-perimidine, C18H16N2O
  40. Crystal structure of catena-poly[diaquabis(μ2-3-carboxybenzene-1,2-dicarboxylato-1:2κ2O:O′)-(μ2-1,4-bis(2-ethylbenzimidazol-1-ylmethyl)-benzene-1:1′κ2N:N′)dizinc(II)], [Zn2(C26H26N4)(C9H4O6)2(H2O)2]
  41. Crystal structure of diaquabis(phenoxyacetato-κ2O,O′)-zinc(II), C16H18O8Zn
  42. Crystal structure of 4-(1H-imidazol-1-yl)-6-pyrimidinylferrocene, C17H14FeN4
  43. Crystal structure of [2-(4-methoxyphenyl)pyrazine-κ2C,N) chlorido[N,N′-bis-(2,6-diisopropyl-phenyl)imidazol-2-ylidene-κC)] palladium(II), C38H45ClN4OPd
  44. Crystal structure of 2-(4-acetyl-2,6-dimethyl-phenyl)-5,6-dichloro-isoindole-1,3-dione, C18H13Cl2NO3
  45. Crystal structure of 4,4′-bipyridin-1-ium 3,3′,5′-tricarboxy-[1,1′-biphenyl]-2-carboxylate, (C26H18N2O8)
  46. Crystal structure of catena-poly[diaqua-μ2-4,4′-biphenyl-4,4′-diyldipyridine-κ2N:N′-bis(5-carboxy-2,6-dimethylpyridine-3-carboxylato-κO)nickel(II)] dihydrate, C40H40N4O12Ni
  47. Crystal structure of poly-[μ2-4,4′-bipyridine-κ2N:N′−μ3-thiophene-2,3-di-carboxylato-κ4O,O′, O′′:O′′′ -cadmium(II)]
  48. Crystal structure of hexaaquamanganese(II) bis(3-carboxythiophene-2-carboxylate) C12H18MnO14S2
  49. Crystal structure of 4-(3-(pyridin-3-yl)-1H-1,2,4-triazol-5-yl)benzoic acid, C14H10N4O2
  50. Crystal structure of (E)-2-(benzo[d]thiazol-2-yl)-3-(pyridin-3-yl)acrylonitrile)
  51. Crystal structure of catena-poly[2,2′-bipyridinyl-6,6′-dicarboxylato-κ4N,N′,O,O′)-(μ2-2,2′-bipyridinyl-6′-carboxyl-6-carboxylato-κ5N,N′,O,O′:O′′)samarium(III)] monohydrate, C24H13N4O8Sm · H2O
  52. Crystal structure of catena-poly[bis(μ2-4-(3-(pyridin-3-yl)-1H-1,2,4-triazol-5-yl)benzoato)-κ2N:O)copper(II)] dihydrate, C28H22N8O6Cu
  53. Crystal structure of catena-poly[tetraaqua-(μ2-4,4′-bipyridine-k2N:N′)-zinc(II)] fumarate tetrahydrate, C14H26N2O12Zn
  54. Crystal structure of triaqua-(1,10-phenanthroline)-(dihydrogen-3,3′,3′′-(2,4,6-trioxo-1,3,5-triazinane-1,3,5-triyl)tripropanoato) cobalt(II)dihydrogen-3,3′,3′′-(2,4,6-trioxo-1,3,5-triazinane-1,3,5-triyl)tripropanoate, C72H82Co2N16O42
  55. Crystal structure of poly[dibromido-(μ2–4,4′-bis-(pyrid-4-yl)biphenyl-κ2N:N′)lead(II)], C22H16N2PbBr2
  56. Crystal structure of catena-poly[diaqua-bis(μ2-5-carboxy-2-(pyridin-4-yl)benzoato-κ2O:N)-cobalt(II)]dihydrate, C26H24N2O12Co
  57. Crystal structure of 5-(4-pyridyl)pyrimidine–4,4′-bipyridine–1,3,5-benzenetriol–water (1:1:1:1), C25H23N5O4
  58. Crystal structure of 5-hydroxy-4-((4-hydroxyphenyl)imino)naphthalen-1(4H)-one monohydrate, C16H11NO3 · 0.5H2O
  59. Crystal structure of 2-amino-N-(4-methoxyphenyl)benzamide, C14H14N2O2
  60. Crystal structure of (2,5-dihydroxyphenyl)-(4-hydroxy-3,5-dimethoxyphenyl)methanone, C15H14O6
  61. Crystal structure of dichlorido[bis(2-hydroxyethyl)5′-([2,2′:6′,2′′-terpyridin]-4′-yl)-[1,1′:3′,1′′-terphenyl]-4,4′′-dicarboxylato]zinc(II), C39H31Cl2N3O6Zn
  62. Crystal structure of bis[4-(3-carboxy-6-fluoro-1-(4-fluorophenyl)-4-oxo-1,4-dihydroquinolin-7-yl)piperazin-1-ium] benzene-1,4-dicarboxylate (C20H18F2N3O3)2(C8H4O4), C48H40F4N6O10
  63. Crystal structure of (2,5-dihydroxyphenyl)-(4-methoxyphenyl)methanone, C14H12O4
  64. Crystal structure of photochromic 1-(2-methyl-5-phenyl-3-thienyl-2-[2-methyl-5-(4-ethoxylphenyl)-3-thienyl] 3,3,4,4,5,5-hexafluoro-cyclopent-1-ene, C29H22F6OS2
  65. Crystal structure of poly[diaquabis(μ2-biphenyl-2,4′-dicarboxylato-κ2O:O′)tris(μ2-1,1′-biphenyl-4,4′-diylbis(1H-imidazole)-κ2N:N′)dicobalt(II)] monohydrat, C82H64N12O11Co2
  66. Crystal structure of 2-amino-4-(3,4-difluorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C16H12N2O2F2
  67. Crystal structure of poly[(di-μ2-aqua-κ2O:O)bis(μ5-oxalato-1:2κ2O1; 1κ1O2; 3:4:5κ3O3; 3κ1O4)(μ4-oxalato-1:2κ2O1; 2:3κ2O2; 3:4κ2O3; 4:1κ2O4)dizinc(II)disodium(I)]
  68. Crystal structure of tetraethylammonium hexachloridotantalate(V), C8H20Cl6NTa
  69. Crystal structure of (E)-2,4-dibromo-6-(((2-nitrophenyl)imino)methyl)phenol, C13H8Br2N2O3
  70. The crystal structure of 6-chloro-2,4-diphenylquinoline
  71. Crystal structure of (E)-2-(((1,10-phenanthrolin-5-yl)imino)methyl)-5-methylphenol monohydrate, C20H15N3O·H2O
  72. Crystal structure of tris(3-(2-pyridyl)pyrazole)zinc(II)tetrachlorido zincate(II), C24H21Cl4N9Zn2
  73. Crystal structure of 4-chloro-N,N-diethyl-6-(piperidin-1-yl)-1,3,5-triazin-2-amine, C12H20ClN5
  74. The crystal structure of 4-allyl-5-benzyl-2,4-dihydro-3H-1,2,4-triazol-3-one, C12H13N3O
  75. Crystal structure of diethyl 2-(((2-(pyridin-3-ylthio)phenyl)amino)methylene)malonate, C19H20N2O4S
  76. Crystal structure of fac-tricarbonyl(2-(isopropylimino)methyl-5-methylphenolatido-κ2N,O)(pyridine-κN)rhenium(I), C19H19N2O4Re
  77. Crystal structure of 1,3,6,8-tetrakis(p-tolylthio)pyrene, C44H34S4
  78. Crystal structure of catena-poly-(diaqua-(μ2-1,2-bis(4-pyridyl)ethene-κ2N:N′)-(4-methylphthalato-κ2O,O′)-cobalt(II)trihydrate, C21H26CoN2O9
  79. Crystal structure of tetraethylammonium fac-tricarbonyl(hexafluoroacetylacetonato-κ2O,O′)-(nitrato-κO)rhenium(I), C16H21O8N2F6Re
  80. Crystal structure of 3-(thiophen-2-yl)-5-(p-tolyl)-4,5-dihydro-1H-pyrazole-1-carboxamide
  81. Crystal structure of bis(1-ethyl-3-methylimidazolium) tetrabromidocadmate(II), [C6H11N2]2[CdBr4]
  82. Crystal structure of N′-(adamantan-2-ylidene)-isonicotinohydrazide, C16H19N3O
  83. Crystal structure of trans-tetraaquabis(4-(pyridin-4-ylsulfonyl)pyridine-κN)cobalt(II) diperchlorate dihydrate, C20H28Cl2CoN4O18S2
  84. Crystal structure of (Z)-4-(furan-2-yl(p-tolylamino)methylene)-3-methyl-1-p-tolyl-1H-pyrazol-5(4H)-one, C23H21N3O2
  85. Crystal structure of 2-[(4-fluorobenzyl)sulfanyl]-4-(2-methylpropyl)-6-oxo-1,6-dihydropyrimidine-5-carbonitrile, C16H16FN3OS
  86. Crystal structure of poly[octaaqua-tris(benzene-1,2,4,5-tetracarboxylato)tetralanthanum(III)] hexahydrate, C30H34La4O38
  87. Crystal structure of trans-tetraaqua-bis(4,4′-sulfonyldipyridine-κN)zinc(II) diperchlorate dihydrate, C20H28Cl2ZnN4O18S2
  88. Crystal structure of 4-nitro-thiophene-2-carboxylic acid, a structure with a Z′ = 4, C5H3NO4S
  89. Crystal structure of dirubidium trimercury(II) tetraselenide, Rb2Hg3Se4
  90. Crystal structure of 5-(adamantan-1-yl)-3-[(4-chloroanilino)methyl]-2,3-dihydro-1,3,4-oxadiazole-2-thione, C19H22ClN3OS
  91. Crystal structure of hexaaquamagnesium(II) 5,5′-bitetrazole-1,1′-diolate, C2H12N8O8Mg
  92. The crystal structure of catena-poly[(μ2-1,1′-benzene-1,4-diylbis(1H-benzimidazole-κ2N:N′)silver(I)] nitrate, C20H14N5AgO3
  93. The crystal structure of 1-(2-(4-chlorophenoxy)-4-chlorophenyl)ethanone, C14H10Cl2O2
  94. The crystal structure of 3,5-dinitro-1,3,5-oxadiazinane, C3H6N4O5
  95. Crystal structure of methyl 5-methoxy 1H-indole-2-carboxylate, C11H11NO3
  96. Crystal structure of (Z)-1-(((3-acetyl-2-hydroxyphenyl)amino)methylene)naphthalen-2(1H)-one, C19H15NO3
  97. Crystal structure of (Z)-5-(4-chlorobenzylidene)-2-thioxothiazolidin-4-one —dimethylsulfoxide (1:1), C12H12ClNO2S3
  98. Crystal structure of 5,5′-((4-(trifluoromethyl)phenyl)methylene)bis(1,3-dimethylpyrimidine-2,4,6(1H,3H,5H)-trione) – diethylamine – dichloromethane (1/1/1) C25H32Cl2F3N5O6
  99. Crystal structure of 2-(dimethylsulfanylidene)-N-(4-methoxyphenyl)-3-oxo-3-phenylpropanamide
  100. Crystal structure of (1,10-phenanthroline-κ2N,N′)bis(thiocyanato-κN)platinum(II), C14H8N4PtS2
  101. Crystal structure of di(μ2-chlorido)bis[2-(2-pyridyl)phenyl-κ2N,C1]dipalladium(II), C22H16Cl2N2Pd2
  102. Crystal structure of trans-dibromidodi(pyridine-κN)palladium(II), PdBr2(C5H5N)2
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