Journal of the Chemical Society - Dalton Transactions, no.12, pp.2087-2090, 1997 (SCI-Expanded)
Symmetrically tetrasubstituted metal-free and metal phthalocyanines (M = 2H, Cu, Ni, Co, Zn or Fe) with four 15-membered heteroatom (N, O, S)-containing donor sites attached have been synthesized and characterized by elemental analysis, IR, NMR, UV/VIS spectroscopy and thermogravimetric analysis.