A new tetraaza macrocycle functionalized with two pendant quinolinemethyl groups: synthesis and characterization of nickel(II) and copper(II) complexes of 2,13-bis(2-quinolinemethyl)-3,14-dimethyl-2,6,13,17-tetraazatricyclo[14,4,0~1.18,0~7.12]docosa

摘要

The reaction of 3,14-dimethyl-2,6,13,17-tetraazatricyclo[14,4,0~1.18, 0~7.12]docosane (L~1) with 2-(chloromethyl)quinoline leads to the new macrocycle 2,13-bis(2-quinolinemethyl)-3,14-dimethyl-2,6,13, 17-tetraazatricyclo [14,4,0~1.18,0~7.12]docosane (L~2). The synthesis, properties and crystal structures are reported for L~2, [Ni(L~2)]Cl_2.2H_2O (1) and [Cu(L~2)]Cl_2.2H_2O (2). The crystal structures of 1 and 2 exhibit a square-planar geometry, coordinated by four secondary and tertiary nitrogen donors of the macrocycle. The electronic spectra, redox potentials and structures of 1 and 2 are significantly affected by the presence of the N-quinolinemethyl groups.