1. Department
of Chemistry, Winston-Salem State University, Winston-Salem, North Carolina 27110, United States
2. Department
of Biological and Physical Sciences, Mount Olive College, Mount Olive, North Carolina 28365, United States
3. Department
of Chemistry, Whitman College, Walla Walla, Washington 99362, United States
4. Department
of Chemistry, St. John Fisher College, Rochester, New York 14618, United States
5. Department
of Chemistry and Biochemistry, Miami University Middletown, Middletown, Ohio 45042, United States
6. Department
of Chemistry, Williams College, Williamstown, Massachusetts 01267, United States