双核钯配合物［Ph_2P（o－C_6H_4CO）PdCl］_2·2CH_2Cl_

Synthesis, Structure and Catalytic Hydrogenation of DinuclearPalladium( Ⅱ) Complex [Ph_2P(o-C_6H_4CO)PdCl]_2 . 2CH_2Cl_2

合成了双氯桥双核钯配合物［Ｐｈ_２Ｐ（ｏ－Ｃ_６Ｈ_４ＣＯ）ＰｄＣｌ］_２·２ＣＨ_２Ｃｌ_２进行了元素分析、红外光谱表征和晶体结构测定，研究了其催化氢化性能。在３０～８０℃、氢分压１．０～５．０ＭＰａ的范围内。发现该配合物是催化氢化丙烯酸为丙酸的有效催化剂．晶体［Ｐｄ_２Ｃｌ_２（Ｃ_（１９）Ｈ_（１４）ＯＰ）_２］·２ＣＨ_２Ｃｌ_２属Ｐ１空间群，ａ＝０．９３０４（３）ｎｍ，ｂ＝１．０３９２（２）ｎｍ，ｃ＝１．１０６２（３）ｎｍ；ａ＝１０２．７８（２），Ｂ＝９７．３５（３），γ＝９５．２５（２），Ｖ＝１．０２６４ｎｍ~３，Ｍ＝１０３２．１７，２＝１，Ｄｃ＝１．６７０ｇ／ｃｍ~３，ｕ＝１３．６９５ｃｍ^（－１），Ｆ（０００）＝５１２，用１９４５个独立衍射精修结构，最终Ｒ＝０．０３６。

The interaction of Pd (CH3CN)2Cl2 and 1 equivalent of o-(diphenylphosphino ) benzaldehyde in refluxing dichloromethane gives dinuclear palladium(Ⅱ) complex [Ph2P(o C6H4CO)PdCl]2, . 2CH2Cl2 by the intramolecular elimination of HCl. The complex has been characterized by analytical and spectroscopic methods as well as X-ray diffraction analysis.Crystal data : [Pd2Cl2(C19H14OP)2] . 2CH2Cl2, ,triclinic , P1, a = 0. 9304 (3) nm , b= 1. 0390 (2) nm, c= 1. 1062(3) nm; a= 102. 78(2) , B= 97. 35(3) , Y= 95. 25(2)°, V= 1. 0264 nm3,M=1032. 17, Z= 1 , Dc= 1. 670 g/cm3, u=13. 695 cm-1 . F(000) = 512, final R=0. 036 for 1945 significant reflections. The complex as a catalyst for homogeneous hydrogenation of olefin has been investigated.The results indicate that the title complex is an active catalyst for hydrogenation of acrylic acid.