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Pd(HmP)2(PBu3n)2的合成、晶体结构及其二聚机理
Synthesis and Structure of Pd(Hmp)2(PBu3N)2 and the Mechanism of its Dimerization
【摘要】 膦巯混合配位钯化合物Pd(Hmp)2((PBu3n)2)(1)含有四方平面构型的二价钯,PdS和Pd-P的键长分别为2.338(1)和2.336(1),在过量的邻巯基苯酚存在下生成.如果是膦过量,则生成以核配合物Pd2(Hmp)(PBu3n)2Cl2[1].文中讨论了(1)和(2)的生成机理和Pd(Hmp)2(PMe3)2的量化计算结果.
【Abstract】 The mxed phosphme thiolato palladium complex Pd(Hmp)2(PBu3n)2 (1) has thePd(Ⅱ) in a square planar (environment with Pd-S and Pd-P being 2.338(1)A and 2.336(1)A, respectively. It was obtained from the reaction of PbCl2 with phosphing in the presence of an excessof mercaptophenol.In excess of phosphine, the product obtained will be the dinuclear complexPd2 (Hmp )2 (PBu3n )2Cl2 (2). The mechanism of formation of (1) and (2) aud the quantum chemicalcalculations on a simphfied model of (1) are also discussed.
【关键词】 膦巯混合配位钯化合物;
分子结构;
邻巯基苯;
生成机制,量化计算;
【Key words】 Mixed phosphme thiolato palladium complex; molecular structure; o-mercaptophenol; Tri-n-butylphosphine; Fromation mechanism; Quantum chemical calculation;
【Key words】 Mixed phosphme thiolato palladium complex; molecular structure; o-mercaptophenol; Tri-n-butylphosphine; Fromation mechanism; Quantum chemical calculation;
【基金】 广东省自然科学基金!970155;上海有机研究所金属有机开放实验室基金
- 【文献出处】 物理化学学报 ,ACTA PHYSICO-CHIMICA SINICA , 编辑部邮箱 ,1998年08期
- 【分类号】O614.8
- 【被引频次】2
- 【下载频次】38