1. Contribution from the Molecule Structure Research Centre (MSRC) NAS, 375014 Yerevan, Armenia, Research Institute of Applied Chemistry (ARIAC), 375005 Yerevan, Armenia, Department of Chemistry and Biochemistry, University of California at Santa Barbara, Santa Barbara, California 93106-9510, and Department of Chemistry, Lake Superior State University, Sault Sainte Marie, Michigan 49783