[1]Department of Chemistry, Temple University, 1901 North 13th Street, Philadelphia, Pennsylvania 19122, USA;
[2]Department of Chemistry, William Paterson University, 300 Pompton Road, Wayne, New Jersey 07470, USA;
[3]Department of Physics, Bryn Mawr College, 101 North Merion Avenue, Bryn Mawr, Pennsylvania 19010, USA;
