Metal Complexes with Cis α Topology from Stereoselective Quadridentate Ligands with Amine, Pyridine, and Quinoline Donor Groups
作者:Christina Ng、Michal Sabat、Cassandra L. Fraser
DOI:10.1021/ic990475v
日期:1999.11.1
pentafluorobenzyl (F(5)Bn) groups was undertaken. The steric and electronic properties vary throughout the ligand series, en(Bn)py, 1, en(F(5)Bn)py, 2, S-pn(F(5)Bn)py, 3, and S-pn(F(5)Bn)qn, 4. These ligands were reacted with MCl(n)() salts (n = 2, M = Mn, Fe, Co, Ni, Cu, Zn; n = 3, M = Fe) to generate, in most cases, octahedral complexes with the targeted cis alpha topology. UV/vis, NMR, IR, cyclic
尽管控制四方拓扑和金属立体化学的原理已为人所知,但在设计用于不对称反应的催化剂时却很少利用顺式α拓扑。进行了不稳定金属顺式α配合物的无机化学研究,以此作为探索其用作各种不同反应催化剂的潜力的序幕。四方配体与乙二胺(en)和S-丙二胺(S-pn)骨架的一系列第一行过渡金属配合物的合成,这些骨架在氮处也被吡啶(py)或喹啉(qn)供体基团烷基化与非配位苄基(Bn)或五氟苄基(F(5)Bn)一样。在整个配体系列中,空间和电子性质都不同,en(Bn)py,1,en(F(5)Bn)py,2,S-pn(F(5)Bn)py,3和S-pn(F(5)Bn)qn,4。这些配体与MCl(n)()盐(n = 2,M = Mn, Fe,Co,Ni,Cu,Zn; n = 3,M = Fe),在大多数情况下可生成具有目标顺式α拓扑的八面体络合物。描述了金属化合物的UV / vis,NMR,IR,循环伏安法(CV)和电导率分析。[Cu