only to one palladium via the quinoline nitrogen. Each palladium ion is also bonded to two halide ions in a trans square-planar fashion. The new complexes were identified and characterized by elemental analyses and by IR, UV–visible, 1H, 13C and 31P nuclear magnetic resonance and ESI-mass spectroscopic studies. The crystal structures of complexes 1–4 and 6 were determined by X-ray structure analysis.
合成并研究了三种类型的喹啉基氨基膦酸酯的钯(II)卤化物配合物。[α-苯胺基-(喹啉-2-基甲基)]膦酸二乙酯和二丁酯(L1,L2)通过喹啉和苯胺氮原子作为N,N-螯合物配体,形成配合物顺式-[Pd(L1 / L2)X 2 ] (X═Cl,Br)(1-4)。它们的3-取代类似物[α-苯胺基-(喹啉-3-基甲基)]膦酸酯(L3,L4)形成反式-[Pd(L3 / L4)2 X 2 ](5-8)的二卤代钯络合物,反式N-仅通过喹啉氮键合的配体分子。[α-(喹啉-3-基氨基)-N-苄基]膦酸二烷基酯(L5,L6)得到四卤代二钯配合物[Pd 2(L5 / L6)3 X 4 ](9-12),包含一个桥联和两个末端配体分子。桥接分子与两个钯原子键合,一个通过喹啉键合,另一个通过氨基喹啉氮键合,而末端配体分子仅通过喹啉氮键合至一个钯。每个钯离子还以反式键合到两个卤离子上方形平面时尚。通过元素分析,红外,紫外可见,1