Affiliation: | (1) Kh. Abovyan Armenian State Pedagogical University, 375010 Yerevan, Republic of Armenia;(2) Institute of Organic Chemistry, National Academy of Sciences of the Republic of Armenia, 375091 Yerevan, Republic of Armenia;(3) Molecular Structure Research Center, National Academy of Sciences of the Republic of Armenia, 375014 Yerevan, Republic of Armenia |