The Spectroscopic and theoretical investigations of complex formation of (3E,3’E)-7,7’-(carbonylbis(azanediyl))bis(3-(2-(2-hydroxyphenyl)hydrazono)-4-oxo-3,4-dihydronaphthalene-2-sulfonic acid) with metal cations. JAC. 2018;15(2):6207-6217. doi:10.24297/jac.v15i2.7500