M. Koikawa et al., SYNTHESES AND CRYSTAL-STRUCTURES OF DIVALENT COMPLEXES WITH A NEW HEXADENTATE LIGAND DERIVED FROM 1,4,7-TRIAZACYCLONONANE, Journal of the Chemical Society. Dalton transactions, (7), 1998, pp. 1085-1086
Mononuclear complexes [Ni(lbptcn)] [ClO4](2), [Cu(lbptcn)][ClO4](2) an
d [Fe(lbptcn)][ClO4](2) with a new hexadentate ligand ethyl-2-pyridylm
ethyl)-4,7-bis(2-pyridylmethyl)-1, 4,7-triazacyclononane (lbptcn) havi
ng unequivalent pendant arms have been prepared and characterized by e
lectronic spectroscopy and X-ray crystallography.