顺式-{内(外)消旋-1,2-双[烷基(芳基)亚砜]乙烷}合钯(Ⅱ)配合物的立体化学及晶体结构  

Stereochemistry and Crystal Structures of Palladium(Ⅱ)Complexes with cis-{meso(race)-1,2-bis[alkyl(aryl)sulfinyl]ethane}

作　　者：邵品西[1] 朱富春[1] 杨玉堃 陈瑞生 姚心侃[2] 王宏根[2] 王如骥[2] Snao Pinxi;Zhu Fuchun;Yang Yukun;Chen Ruisheng;Yao Xinkan;Wang Honggen;Wang Ruji(Department of Chemistry,Nankai University Unaurersily,Tianjin;Test Center,Nankai University,Tianjin)

机构地区：[1]南开大学化学系 [2]南开大学测试中心

出　　处：《高等学校化学学报》1989年第8期821-825,共5页Chemical Journal of Chinese Universities

基　　金：中国科学院科学基金

摘　　要：本文报道了高、低熔点的RS(O)CH_(2)CH_(2)S(O)R(R=n-C_(3)H_(7),n-C_(8)H_(17),C_(6)H_(5))与钯(Ⅱ)的配合物(PdCl_(2)·L)的合成与性质.并对R=n-C_(3)H_(7)的一对配合物进行了单晶分析,发现高熔点配体为内消旋体,低熔点配体为外消旋体.Six complexes of palladium(Ⅱ)with meso-and race-diastereoisomeric RS(O)CH_(2)CH_(2)-S(O)R(abbr.to meso-,race-BXSE.R=n-C_(3)H_(7),C_(6)H_(5),n-C_(8)H_(17),X=Pr,P,O)were prepared.The crystal structures of PdCl_(2)-meso-BPrSE(I)and PdCl_(2).race-BPrSE(Ⅱ)were determined.Crystal data:I:P2_(1)2_(1)2_(1),a=9.3650(9),b=9.747(2),c=19.341(5)A,Z=4,R=0.044;Ⅱ:Ibca,a=9.442(1),6=15.386(4),c=20.095(3)A,Z=8,R=0.030.The IR spectra indicate that the ligands are bonded to Palladium(Ⅱ)via sulfur atoms to form the cis-chelated complexes,which has been confirmed by the crystal Structures.△vso[vso complex-tvso ligand]for different R groups varies in the order:meso-BPrSE-race-BPrSE>meso-BOSE-race-BOSE>meso-BPSE-race-BOSE.I has a C_(1) symmetry andⅡhas C_(2) symmetry.The four coordinated atoms around palladium(Ⅱ)form a right square plane forⅡand a only slightly tetrahedrally distorted plane for I.It can be concluded that the higher melting point BPrSE is of meso form and the lower melting point BPrSE is of rac form.

关 键 词：双亚砜 钯配台物 晶体结构 立体化学 

分 类 号：O614.823[理学—无机化学]