摘要:
一系列新型阳离子甲基亚甲基dor(V)配合物,反式-[Re v(NMe)(py)2(PPh 3)(OEt)Cl] + 1,顺式-[Re v(NMe)(py)2(PPh 3))(OEt)Cl] + 2,[Re v(NMe)(py)3(OEt)Cl] + 3和[Re v(NMe)(4Me-py)2(PPh 3)(OEt)Cl] + 4(py =吡啶)已合成为高氯酸盐。3的晶体结构已确定:单斜,空间群P 2 1 / c,a = 10.223(4),b = 17.663(2),c = 25.222(3)Å,β= 90.70(2)°,Z =4。结构3的分子几乎呈现出线性的Re–N–Me几何形状,与甲基亚氨基单元的四电子供体配方相符。上光谱研究1 - 4和它们的次氮和氧代类似物,[重v(N)(PY)2(PPH 3)2 CL] CLO 4 5和[重v(O)2(PY)3(PPh 3)] ClO 4 6均在400–500