1. Department of Chemistry, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1, Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, Canada V5A 1S6, and Department of Industrial Chemistry, Meiji University, Higashi-mita, 1-1-1, Tama-ku, Kawasaki-shi, Kanagawa-ken, 214-8571 Japan