Core-modified phthalocyanine analogues with a seven-membered ring unit in place of a five-membered ring unit

Article abstract of DOI:10.1016/j.tetlet.2011.11.092

A variety of phthalocyanine analogues with a seven-membered ring unit in place of a five-membered ring unit were synthesized from aromatic dicarbonitriles bearing cyano groups at 1,4-separate positions. Based on the spectroscopic analyses and theoretical