Studies on the metal-amide bond. I. Metal complexes of the bis-amide tetradentate ligand N,N′-bis(2′-pyridinecarboxamide)-1,2-benzene

Ross L. Chapman*, Robert S. Vagg

*Corresponding author for this work

Research output: Contribution to journalArticle

94 Citations (Scopus)

Abstract

Complexes of general formula M(bpbH2)Cl2· nH2O, where bpbH2 = N,N′-bis(2′-pyridinecarboxamide)-1,2-benzene and M = Mn (n = 0), Co (n = 1), Co and Ni (n = 2) and Cu (n = 1.5) have been prepared. As well, the complexes Ag(bpbH2)(NO3) and Co(bpbH2)(NCS)2·2.5H2O were isolated. The copper and nickel complexes exhibit clear evidence of neutral amide-N coordination. Several of the metal ions used promote amide deprotonation on coordination, and a series of complexes of formula M(bpb)·H2O (M = Co, Ni, Cu, Zn and Pd) are reported. A planar MIIN4 system is proposed for these complexes. Stereochemistries for the complexes have been proposed utilising microanalyses, magnetic susceptibilities, thermogravimetric analyses and infrared and visible spectral data.

Original languageEnglish
Pages (from-to)227-234
Number of pages8
JournalInorganica Chimica Acta
Volume33
Issue numberC
DOIs
Publication statusPublished - 1979

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