Canadian journal of chemistry

Study of the properties of pyridine-2-azo-p-phenyltetramethylguanidine as a metal ion complexing agent

KT Leffek, A Jarczewski

Index: Leffek, Kenneth T.; Jarczewski, Arnold Canadian Journal of Chemistry, 1991 , vol. 69, # 8 p. 1238 - 1244

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Citation Number: 12

Abstract

Pyridine-2-azo-p-phenyltetramethylguanidine (PAPT) was synthesized and the properties of this compound examined. The dissociation constants of the conjugate acids in H2O are and at 25° C at I= 0.1, and in acetonitrile are and. The properties of metal-ligand chelates in acetonitrile have been examined and the stability constants for Ni2+, Co2+, and Zn2+ complexes measured. The rates of reaction of PAPT with Ni2+, Co2+, and Zn2+ in ...