ИСТИНА

Phenyl-substituted planar mono and binuclear phthalocyanine magnesium complexes with an extended π-conjugation system were synthesized with high yields. Two approaches to the extension of the π-system were presented: extension of an aromatic bridge or a peripheral π-system. For planar binuclear complexes the extension of rigid aromatic spacer leads to hypsochromic shift of Q band. The extension of peripheral π-system for mono and binuclear complexes leads to about 100 nm bathochromic shift of Q band. A maximum of near-IR absorption at 960 nm was observed in the case of the planar binuclear naphthalocyanine sharing a common benzene ring.