1. Department of Chemistry and Biochemistry, Concordia University, Montreal, Quebec H4B 1R6, Canada, Department of Physics, Ulyanovsk State University Branch in Dimitrovgrad, Dimitrovgrad, Russia, Department of Photonics, Institute of Physics, State University of St. Petersburg, St. Petersburg, Russia, and Dipartimento di Chimica Organica, Università di Pavia, Via Taramelli 10, Pavia 27100, Italia