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Synthesis and Crystal structure of Bis- (thiourea)dichloroiron(II) Di(4,5-diazafluoren-9-one) 被引量:3
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作者 WUZhi-Yong XUDuan-Jun +1 位作者 WUJing-Yun CHIANGMichaelY 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2004年第11期1238-1241,共4页
The title compound Fe(CH4N2S)2Cl22(C11H6N2O) (Mr = 643.35) has been prepared and its crystal structure was determined by X-ray diffraction method with the following data: triclinic, space group P1, a = 7.3742(10), b =... The title compound Fe(CH4N2S)2Cl22(C11H6N2O) (Mr = 643.35) has been prepared and its crystal structure was determined by X-ray diffraction method with the following data: triclinic, space group P1, a = 7.3742(10), b = 13.0427(12), c = 15.215(2) , a = 88.969(12), b = 78.004(12), g = 79.689(11)o, V = 1408.1(3) 3, Z = 2, Dx = 1.517 g/cm3, m = 0.912 mm-1 and F(000) = 656. The final R = 0.030 and wR = 0.078 for 4070 observed reflections (I > 2s(I)), and R = 0.064 and wR = 0.091 for 5516 independent ones. The crystal consists of tetrahedral Fe(II) complex and hydrogen bonded 4,5-diazafluoren-9-one (dafone). The carbonyl bridge in dafone distorts the bipyridine moiety and results in the longer N…N separation of 3.071(3) and 3.061(3) ? There exists an extensive intermolecular hydrogen bond network in the crystal, and p-p stacking is observed between the neighboring dafone rings. 展开更多
关键词 Fe(II) complex THIOUREA crystal structure synthesis 4 5-diazafluoren-9-one
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Synthesis and Crystal Structure of the Polymorphic Isomer [Cu(dafone)_2(H_2O)_2](Hphth)_2 被引量:1
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作者 HEXue-Yan LIUXun-Gao LIBao-Long ZHANGYong 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2005年第7期831-835,739,共6页
The polymorphic isomer [Cu(dafone)2(H2O)2](Hphth)2 1 (dafone = 4,5- diazafluoren-9-one, phth = 1,2-benzenedicarboxyl) has been synthesized and the structure was determined by single-crystal X-ray diffraction. Crystal ... The polymorphic isomer [Cu(dafone)2(H2O)2](Hphth)2 1 (dafone = 4,5- diazafluoren-9-one, phth = 1,2-benzenedicarboxyl) has been synthesized and the structure was determined by single-crystal X-ray diffraction. Crystal data: C38H26CuN4O12, monoclinic, space group P21/a with a = 11.5863(18), b = 25.512(4), c = 11.878(2) ?, β = 111.696(3)o, V = 3262.1(9) ?3, Mr = 794.17, Z = 4, Dc = 1.617 g/cm3, F(000) = 1628, μ = 0.748 mm-1, R = 0.0603 and wR = 0.1132 for 6878 observed reflections with I > 2σ(I). 1 consists of one [Cu(dafone)2(H2O)2]2+ cation and two monoprotonated 1,2-benzenedicarboxyl (Hphth) anions and forms a two-dimensional hydrogen bond network via intermolecular hydrogen bond interactions between the coordinated water molecules and carboxylato-oxygen atoms from monoprotonated benzenedicarboxyl anions. 展开更多
关键词 crystal structure POLYMORPHISM copper complex 4 5-diazafluoren-9-one benzenedicarboxyl
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The Identification of Two New Sterols from Marine Organism 被引量:3
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作者 Shi Hai XU Long Mei ZENG(Department of Chemistry, Jinan University Guanzhou 510632)(Department of Chemistry Zhongshan University Guanzhou 510275) 《Chinese Chemical Letters》 SCIE CAS CSCD 2000年第6期531-534,共4页
Two new sterol have been isolated from the South China Sea marine organism. Compound 1 was isolated from the sponge Polymastia sobustia and compound 2 was obtained from the soft coral Sinularia inexplicata. Their stru... Two new sterol have been isolated from the South China Sea marine organism. Compound 1 was isolated from the sponge Polymastia sobustia and compound 2 was obtained from the soft coral Sinularia inexplicata. Their structures were established as 3 beta-hydroxy-stigmast-5en-7-one and 24-methylene cholestan -3 beta, 6 beta, 9 alpha, 19-tetrol by variety of spectral analysis such as IR, EIMS, 1DNMR, H-1-H-1 COSY, HMQC, HMBC, NOESY. 展开更多
关键词 sterol Polymastia sobustia 3 beta-hydroxy- stigmast-5en-7-one soft coral Sinularia inexplicita 24-methylene cholestan-3 beta 6 beta 9 alpha 19-tetrol
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