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Crystal and Molecular Structure of Ethyl 2-[(4-Hydroxy-phenyl)hydrazono]-3-oxobutanoate
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作者 Gnanasekaran Rajalakshmi Poomani Kumaradhas +3 位作者 Mahesh Padaki Arun M Isloor Chitrakara Hegede Balasubramanium Sridhar 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2011年第2期186-189,共4页
The title compound,C 12 N 2 O 4 H 14 (M r=250.3),crystallizes in triclinic P1 space group with a=7.7709(9),b=8.7534(11),c=9.6958(12),α=77.103(2),β=80.496(2),γ=86.726(2)o,V=633.9(1) 3,Z=2,F(000)=26... The title compound,C 12 N 2 O 4 H 14 (M r=250.3),crystallizes in triclinic P1 space group with a=7.7709(9),b=8.7534(11),c=9.6958(12),α=77.103(2),β=80.496(2),γ=86.726(2)o,V=633.9(1) 3,Z=2,F(000)=264,D c=1.311 Mg/m 3,μ(MoKα)=0.1 mm-1,the final R=0.056,and wR=0.15 for 2239 observed reflections (I 2σ(Ⅰ)).The molecules in the crystal are linked through O-H···O type of hydrogen bonding interaction forming an infinite chainlike structure.The phenylhydrazone ring and oxobutanoate groups are almost planar.The keto hydrazo group adopts a Z-configuration in the molecule and the torsion angle is-177.6(2)°. 展开更多
关键词 molecular structure oxobutanoate PHENYLHYDRAZONE z-configuration hydrogen bonding
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Crystal Structures of (Z)-1-Phenyl-1-phenylseleno- 2-(p-tolylsulfonyl)ethene and (Z)-1,3-Diphenyl-3- phenyl-seleno-2-(p-tolylsulfonyl)-2-propen-1-ol
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作者 XIEMei-Hua HUANGXian 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2004年第6期543-546,共4页
The molecular structures of compounds (Z)-1-phenyl-1-phenylseleno-2-(p-tolyl- sulfonyl) ethene 1 (C21H18O2SSe, Mr = 413.37) and 1,3-diphenyl-3-phenylseleno-2-(p-tolylsulfonyl) -2-propen-1-ol 2 (C28H24O3SSe, Mr = 519.4... The molecular structures of compounds (Z)-1-phenyl-1-phenylseleno-2-(p-tolyl- sulfonyl) ethene 1 (C21H18O2SSe, Mr = 413.37) and 1,3-diphenyl-3-phenylseleno-2-(p-tolylsulfonyl) -2-propen-1-ol 2 (C28H24O3SSe, Mr = 519.49) were determined by single-crystal X-ray diffraction analyses. Crystal 1 crystallizes in monoclinic, space group P21/n with a = 12.574(4), b = 12.087(3), c = 13.132(4) , b = 107.973(4), V = 1898.5(9) ?, Z = 4, Dc = 1.446 g/cm3, m = 2.098 mm-1, l = 0.71073 ? F(000) = 840, R = 0.0484 and wR = 0.1085. Crystal 2 crystallizes in monoclinic, space group P21/n with a = 7.0710(4), b = 14.6604(9), c = 24.3432(5) ? b = 94.76(1), V = 2514.8(3) 3, Z = 4, Dc = 1.372 g/cm3, m = 1.603 mm-1, l = 0.71073 ? F (000) = 1064, R = 0.0366 and wR = 0.0573. The X-ray diffraction analysis shows that both of the title compounds are in Z- configuration. 展开更多
关键词 molecular structures z-configuration phenylseleno p-tolylsulfonyl
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