BIS(BENZO)TRIAZINETHIONOAZA-14-CROWN-4 ETHER AND ITS COMPLEX WITH COBR 2: SYNTHESIS AND CRYSTAL STRUCTURES Article Mazur V.M., Kolyadina N.M., Sokol V.I., Soro S., Sergienko V.S., Davydov V.V. Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya. Vol. 36. 2010. P. 838-843