1. Department of Chemistry, Federal University of Parana, 81531-990, Curitiba-PR, Brazil, Department of Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg, Germany, and Photosensitive Materials Research Center, Toyo Gosei Co., Ltd., Wakahagi 4-2-1, Inba-mura, Inba-gun, Chiba 270-1609, Japan