Copper(II) complexes of symmetric and asymmetric bis(imine) ligands: Tuning the Cu(I)/Cu(II) redox couple
作者:Anna Jozwiuk、Zhaodong Wang、Douglas R. Powell、Robert P. Houser
DOI:10.1016/j.ica.2012.08.026
日期:2013.1
diphenol (H2L1), which coordinates to Cu(II) as a dianion to form [Cu(L1)(CH3OH)] (1). Whereas (L1)2− and L3 form mononuclear complexes with Cu(II) ions, the asymmetric ligand HL2 produces copper dimers in the solid state with the phenolate O atoms bridging between copper ions. Solution magnetic moment measurements and ESI–MS suggest that all three species exist as monomers in solution, although small
两个新的吡啶基双(亚胺)配体2-((2-甲基-2-(吡啶-2-基)-3-(吡啶-2-基亚甲基氨基)丙基亚氨基)甲基)苯酚HL 2和2-甲基-2-通过2-甲基-2-吡啶-2的席夫碱缩合反应合成(吡啶-2-基)-N 1,N 3-双(吡啶-2-基亚甲基)丙烷-1,3-二胺L 3。 -丙基-1,3-二胺和2-吡啶甲醛或2-羟基苯甲醛。HL 2和L 3对Cu(II)离子的络合产生[Cu(HL 2)] 2(ClO 4)4(2)和[Cu(L 3)](ClO 4)2(3)。将2和3的结构和电化学与我们先前合成的配体2,2'-(2-甲基-2-(吡啶-2-基)丙烷-1,3-二基)双的Cu(II)配合物进行了比较(Azan-1-yl-1-亚烷基)双(methan-1-yl-1-亚烷基)二酚(H 2 L 1),与二价Cu(II)配成二价阴离子形成[Cu(L 1)( CH 3 OH)](1)。(L 1)2和L 3与