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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 13, Number 1
BKCSDE 13(1)
January 20, 1992 

 
Title
N-Alkylatin of Secondary Amines in Nickel(Ⅱ) Complexes of Polyaza Macrotricyclic Ligands
Author
Myunghyun Paik Suh*, Myung Jin Kim, Hyun Kyung Kim, Kye Young Oh
Keywords
Abstract
The secondary nitrogen donors of the Ni(Ⅱ) complexes of macrotricyclic ligands 8-methyl-1,3,6,8,10,13,15-heptaazatricyclo [l3.1.1.113,15]octadecane (A) and 1,3,6,9,11,14-hexaazatricyclo[12.2.1.16,9]octadeca ne (B) are N-alkylated and the Ni(Ⅱ) complexes of N-Me2A, N-Et2A, and N-Me2B are obtained. The Ni(Ⅱ) complexes of N-Me2A and N-Et2A are stable in acidic aqueous solutions while that of N-Me2B decomposes relatively rapidly. The N-alkylation leads to the decrease in the ligand field strength as well as an anodic shift in both of the oxidation and the reduction potentials of the Ni(Ⅱ) complexes.
Page
80 - 83
Full Text
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