Carbon–phosphorous bond cleavage on a platinum centre. Crystal structure of sym-cis-[Pt(μ-PPh₂)(PPh₂CH₂CH₂S–P,S

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• 作者：Duran ; Josep ; Polo ; Alfonso ; Real ; Julio ; Á ; lvarez-Larena ; Á ; ngel ; Piniella ; J. Francesc
• 关键词：Platinum ; Phosphinothiolate ; Phosphide ; Crystal structures
• 刊名：Inorganica Chimica Acta
• 出版年：2003
• 出版时间：September 8, 2003
• 年：2003
• 卷：353
• 期：Complete
• 页码：280-283
• 全文大小：203 K

文摘

The complex [Pt(dppet–P,S)₂] (Hdppet=PPh₂CH₂CH₂SH) that had been synthesized previously from K₂PtCl₄ and Hdppet in the presence of base with moderate yields (ca. 50 % ), has been prepared in high yield (ca. 95 % ) in the absence of base. [Pt(dppet–P,S)₂] is stable in the air, in the presence of acid (2 M HCl) and in refluxing toluene, but in the sun light it turns into binuclear sym-cis-[Pt(μ-PPh₂)(dppet–P,S)]₂ (1). The crystal structure of 1 revealed a non-crystallographically planar Pt₂P₄S₂ core with open μ-P–Pt–P(dppet) angles (102, 104°) and similar μ-P–Pt distances of 2.311(4), 2.318(5), 2.302(5), 2.324(5) Å, little influenced by the trans ligand.