金属配合物MBr{(Ph2PCH2CH2)2C6H3)，M=Pd(Ⅱ)、Pt(Ⅱ)的合成及晶体结构

摘要

A new diphosphine ligand, 2, 6-bis (diphenylphosphinoethyl) bromobenzene, was synthesized and two new complexes , [PdBr{ (Ph2PCH2CH2)2C6H3} ] (1) and [PtBr{ (Ph2PCH2CH2)2C6H3} ] (2), were obtained by the oxidative addition reaction of Pd0(DBA)2(DBA is PhHC = CHCOCH = CHPh) and Pt0(PPh3) 4 with this ligand, respectively. The two complexes were characterized by 31p NMR, 1H NMR and X-ray diffraction. The crystallographic data of complex (1) are: space group Pna21, a = 16. 806(2)A, b=18.578(2)A, c =9.643(5)A and these of complex (2) are: space group P21/a, a=12.364(3)A, b=17.676(4)A, c=13.672(7)A, β=94.8b(3)°.%合成了一个新的双膦配位体：2，6-双(二苯基膦乙基)溴苯，通过Pd0(DBA)2，(DBA为PhHC=CHCOCH=CHPh)，pt0(PPh3)4和该配位体的氧化加成反应，分别得到了两个新的金属配合物：rn[PdBr{(pH2PCH2CH2)2C6H3}](1)和[PtBr{(Ph2PCH2CH2)2C6H3}](2)，并进行了31P NMR，1H NMR的表征。通过X-[PdBr{(pH2PCH2CH2)2C6H3}](1)和[PtBr{(Ph2PCH2CH2)2C6H3}](2)，并进行了31P NMR，1H NMR的表征。通过X-射线晶体结构测定，这两个配合物的晶体学参数分别为：配合物(1)的晶体属正交晶系，空间群Pna21，a=16.806(2)A，b=18.578(2)A，c=9.643(5)A；配合物(2)的晶体属单斜晶系，空间群P21/a，α=12.364(3) ，b=17.676(4)A，c=13.672(7)A，β=94.86(3)°。