1. Contribution from the Department of Chemistry, Université de Montréal, Montréal, Québec, H3T-1J4, Canada, Département de Chimie Moléculaire, UMR CNRS 5250, Université Joseph Fourier, 38041 Grenoble Cedex 9, France, Dipartimento di Chimica Inorganica, Chimica Analitica e Chimica Fisica, Università di Messina, 98166 Messina, Italy, and Department of Material Sciences, Faculty of Engineering, Shizuoka University, Hamamatsu, 432-8561, Japan