* Corresponding authors

^a Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence, KS 66045-7582, USA
E-mail: mrubin@ku.edu
Fax: +1-785-864-5396
Tel: +1-785-864-5071

^b Department of Chemistry, University of Puerto Rico at Mayaguez, Q-153, 259 Alfonso Valdez Blvd, Mayagüez, Puerto Rico

^c Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russian Federation

^d Peoples’ Friendship University of Russia, 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation