1. Department of Chemistry, University of New Orleans, New Orleans, Louisiana 70148, Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada, Department of Chemistry and Biochemistry University of Windsor, 273-1 Essex Hall, 401 Sunset Avenue, Windsor, Ontario N9B 3P4, Canada and Department of Chemistry, Keene State College, Keene, New Hampshire 03435-2001