Synthesis and Crystal Structure of [(η~5-C_5H_5)(THF)Sm]_2[μ-η_2:η_2-N_2Ph_2]_2·2THF  

作　　者：袁福根  龚菁  张勇  

机构地区：[1]Department of Chemistry, University of Science and Technology of Suzhou, Suzhou 215009, China [2]Department of Chemistry, Suzhou University, Suzhou 215006, China

出　　处：《Chinese Journal of Structural Chemistry》2004年第10期1099-1102,共4页结构化学（英文）

基　　金：Qinglan Foundation of Jiangsu Province and the Foundation of Educational Ministry of Jiangsu Province

摘　　要：The title complex [(h5-C5H5)(THF)Sm]2[m-h2:h2-N2Ph2]22THF has been synthe- sized by the reaction of divalent (C5H5)2Sm(THF) with azobenzene and its crystal structure was determined by single-crystal X-ray diffraction analysis. It crystallizes in triclinic, space group P with a = 9.1617(16), b = 10.5894(17), c = 11.957(2) ? a = 85.789(6), b = 89.395(7), g = 82.503(6), V = 1147.0(3) ?, Z = 1, C50H62N4O4Sm2, Mr = 1083.74, Dc = 1.569 g/cm3, F(000) = 546 and m(MoKa) = 2.583 mm-1. The structure was solved by direct methods and refined by full-matrix least-squares techniques. The final R and wR are 0.0271 and 0.0637, respectively for 4963 independent reflections. Each samarium atom is involved in two single bonds (one to each N2Ph2 unit) and two donor bonds (one to each N2Ph2 unit).

关 键 词：SAMARIUM AZOBENZENE crystal structure CYCLOPENTADIENYL 

分 类 号：O614.337[理学—无机化学]