1. Department
of Chemistry, University of Hawai‘i at Ma̅noa, 2545
McCarthy Mall, Honolulu, Hawaii 96822, United States
2. Department
of Chemistry, University of California, San Diego, 9500 Gilman
Drive, La Jolla, California 92093, United States
3. 6128
Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States