Hydrogen bond and pi...pi interaction based 3D supramolecular architecture of chiral cobalt(III) azido tridentate chelating Schiff base

摘要

Cobalt(II) perchlorate reacts with tridentate chelating Schiff base,N-((phenyl)formylidene)-N'-(2-aminoethyl)ethane-l,2-diamine (pfad) and azide in methanol-acetonitrile solution in 1:1:3 molar ratio to afford a chiral cobalt(III) complex [Co(pfad)(X)_3] (1).The meridional arrangements of three N atoms of the tridentate chelator and three N_3~- in cobalt(IIf) center that construct a 3D supra-molecular network through N-H...N hydrogen bonding and weak pi...pi interaction.Single band at 435 nm is observed in the solid-state emission spectrum.