studies of transition metal complexes with 2n-quinolyl- and 2n-isoquinolyl- 1,1,3,3-tetramethy lguanidines

ligands derived from 8-quinoline, 6-quinoline, 1 -isoquinoline, and 5-isoquinoline were synthesized. these compounds have been used as ligands for complexation of transition metals, such as copper(ii) and nickel(ii). according to the spectrosocopic data, copper(ii) cation forms (i: 1) and (i:2) complexes with 2-(8-quinoly1)-l,l,3,3- tetramethylguanidine and 2- (i '-isoquinoly1)- 1,1,3,3-tetramethylguanidine, respectively. in contrast, 2-(6'-quinoly1)- 1, l,3,3-tetramethylguanidine and 2-(5'-isoquinoly1)- 1,1,3,3-tetramethylguanidine ligands were shown only in (1: 1) metal-ligand complex. when these ligands are reacted with nickel(ii), the same results are obtained.