Copper(II) and cobalt(II) coordination polymers with azido ions and l,3-bis(4'-pyridyl)propane

摘要

A copper(II) complex [Cu(mu-l,3-N_3)(N_3)(bpp)]_n (1) (bpp = 1,3-bis(4'-pyridyl)propane) has been shown to exhibit a two-dimensional network formed by the bpp ligands interlinking copper(II)-azido chains,in which the single azido bridge assumes an asymmetric mu-1,3 mode and mediates weak ferromagnetic coupling.On the other hand,the reaction of cobalt(II),azido and bpp yielded two supramolec-ular isomers of [Co(N_3)_2(bpp)_2]_n (2 and 3) in which the azido ions serve as terminal ligands and the metal ions are linked by the bpp ligands in different conformations.