Acta Phys. -Chim. Sin. ›› 1998, Vol. 14 ›› Issue (08): 725-730.doi: 10.3866/PKU.WHXB19980811

• ARTICLE • Previous Articles     Next Articles

Synthesis and Structure of Pd(Hmp)2(PBn3)2 and the Mechanism of its Dimerization

Kang Bei-Sheng, Zheng Kang-Cheng, Zhang Hua-Xin, Tong Ye-Xiang, Wen Ting-Bin, Cao Rong   

  1. School of Chemistry and Chemical Engineering,Zhongshan University,Guanghzou 510275|State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure Matter,Chinese Academy of Sciences,Fujian 350002
  • Received:1997-11-03 Revised:1998-03-06 Published:1998-08-15
  • Contact: Kang Bei-Sheng

Abstract:

The mixed phosphine thiolato palladium complex Pd(Hmp)_2(PBu_3n)_2 (1) has the Pd(Ⅱ) in a square planar (environment with Pd-S and Pd-P being 2.338(1) Å and 2.336(1) Å, respectively. It was obtained from the reaction of PbCl_2 with phosphine in the presence of an excess of o-mercaptophenol. In excess of phosphine, the product obtained will be the dinuclear complexPd_2 (Hmp )_2 (PBu_3n )_2Cl_2 (2). The mechanism of formation of (1) and (2) and the quantum chemical calculations on a simplified model of (1) are also discussed.

Key words: Mixed phosphine thiolato palladium complex, Molecular strusture, o-Mercaptophenol, Tri-n-butylphosphine, Formation mechanism, Quantum chemical calculation