高等学校化学学报

高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (8): 821.

• 研究论文 • 上一篇    下一篇

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

邵品西1, 朱富春1, 杨玉堃1, 陈瑞生1, 姚心侃2, 王宏根2, 王如骥2   

  1. 1. 南开大学化学系;
    2. 南开大学测试中心
  • 收稿日期:1987-12-31 出版日期:1989-08-24 发布日期:1989-08-24
  • 通讯作者: 邵品西
  • 基金资助:

    中国科学院科学基金

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

Shao Pinxi1, Zhu Fuchun1, Yang Yukun1, Chen Ruisheng1, Yao Xinkan2, Wang Honggen2, Wang Ruji2   

  1. 1. Department of Chemistry, Nankai University, Tianjin;
    2. Test Center, Nanism University, Tianjin
  • Received:1987-12-31 Online:1989-08-24 Published:1989-08-24

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摘要： 本文报道了高、低熔点的RS(O)CH2CH2S(O)R(R=n-C3H7,n-C8H17,C6H5)与钯(Ⅱ)的配合物(PdCl2·L)的合成与性质.并对R=n-C3H7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.

关键词: 双亚砜, 钯配合物, 晶体结构, 立体化学

Abstract: Six complexes of palladium (Ⅱ) with meso- and race-diastereoisomeric RS(O)CH2CH2-S(O)R(abbr.to meso-, race-BXSE.R = n-C3H7, C6H5, n-C8H17, X = Pr, P, O) were prepared.The crystal structures of PdCl2-meso-BPrSE (I) and PdCl2.race-BPrSE(Ⅱ) were determined.Crystal data: I : P212121, a = 9.3650(9), b=9.747(2), c=19.341(5)Å, Z=4, R=0.044; Ⅱ: Ibca, a = 9.442(1), b=15.386(4), c = 20.095(3)Å, Z=8, R=0.030.The IRspectra 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 -vso ligand] for different Rgroups varies in the order: meso-BPrSE- race-BPrSE>meso-BOSE- race-BOSE> meso-BPSE- race-BOSE.Ihas a C1 symmetry and Ⅱ has C2 symmetry.The four coordinated atoms around palladium (Ⅱ) form a right square plane for Ⅱ and a only slightly tetrahedrally distorted plane for I.It can be concluded that the higher melting point BPrSEis of meso form and the lower melting point BPrSEis of rac form.

Key words: Disulfoxide, Palladium complex, Crystal structure, Stereochemistry

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