Spectropotentiometric Study of Complexation Equilibrium in the System H_2TAPBr_4, H_2TAPCl_4-(CH_3COO)_2Cd-HClO_4-DMSO at 298 K

摘要

A procedure was suggested for direct measurement of the equilibrium constant of complex formation of porphyrins MX_2 + H_2P mutually imopiles MP + 2 HX, based on providing conditions under which the direct reaction is suppressed and the reverse reaction is facilitiated. The procedure is applicable to complexation of Cd~92+) with tetrachloro-and tetrabromotetraazaporphyrins in DMSO in the presence of HClO_4.