Novel structures of cyclometallated complexes of palladium(II) derived from terdentate ligands. Crystal and molecular structure of [Pd{C6H4C(H)NCH2CH2CH2NMe2}(X)] (X=Cl, Br, I)
作者:Alberto Fernández*、Patricia Urı́a、Jesús J Fernández、Margarita López-Torres、Antonio Suárez、Digna Vázquez-Garcı́a、Ma Teresa Pereira、José M Vila*
DOI:10.1016/s0022-328x(00)00567-2
日期:2001.2
X-ray crystal structures of 2, 3 and 4 were determined and discussed. Treatment of 2, 3, 4 and 21 with tertiary monophosphines in acetone gave the mononuclear cyclometallated complexes [PdC6H4C(H)NCH2CH2CH2NMe2}(L)(X)] (6: L=PPh3, X=Cl; 7: L=PPh3, X=Br; 8: L=PPh3, X=I; 9: L=PMePh2, X=Cl; 10: L=PMe2Ph, X=Cl) and [Pd3,4-(MeO)2C6H2C(H)NCH2CH2CH2NMe2}(L)(Br)] (22: L=PPh3; 23: L=PMePh2; 24: L=PMe2Ph)
的治疗ñ - (2-氯苯亚甲基) - ñ,ñ -二甲基-1,3-丙二胺(1)和ñ - (2-溴- 3,4-(MEO)2 -亚苄基) - ñ,Ñ二甲基1,3-丙二胺(20)在甲苯中的三(二亚苄基丙酮)(0),得到单核环金属化配合物[钯C 6 H ^ 4 C(H)NCH 2 CH 2 CH 2 NME 2 }(CL)](2)和[钯3,4-(MEO)2 c ^ 6 ħ 2 C(H)NCH 2 CH2 CH 2 NMe 2 }(Br)](21)分别通过与作为C,N,N齿状配体的配体的氧化加成反应而形成。的反应2与溴化物或碘化物在丙酮钠-水混合物,得到的环金属化类似物2,[钯Ç 6 ħ 4 C(H)NCH 2 CH 2 CH 2 NME 2 }(BR)](3)和[钯C 6 H ^ 4 C(H)NCH 2 CH 2 CH 2 NME 2}(I)](4),通过卤素交换。的X射线晶体结构2