Spectropotentiometric study of the complexation equilibrium in the H(2)TAP(Br)(4) (H(2)TAP(Cl)(4))-(CH3COO)(2)Cd-HClO4-DMSO system at 298 K

Authors
Ivanova, YB Simonova, OR Sheinin, VB Chizhova, NV Berezin, BD
Citation
Yb. Ivanova et al., Spectropotentiometric study of the complexation equilibrium in the H(2)TAP(Br)(4) (H(2)TAP(Cl)(4))-(CH3COO)(2)Cd-HClO4-DMSO system at 298 K, RUSS J IN C, 45(10), 2000, pp. 1611-1615
Citations number
18
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
ISSN journal
00360236 → ACNP
Volume
45
Issue
10
Year of publication
2000
Pages
1611 - 1615
Database
ISI
SICI code
0036-0236(200010)45:10<1611:SSOTCE>2.0.ZU;2-A
Abstract
A method for the direct measurement of the equilibrium constant of reaction for the formation of porphyrin complexes is proposed. According to this me thod, the equilibrium in the reaction MX2 + H2P reversible arrow (R1)(R-1) MP + 2HX is established under the condition that the forward reaction (R-1) is suppressed, whereas the back reaction (R-1) is initiated. The applicabi lity of this method to the formation of Cd2+ complexes with tetrachloro-and tetrabromotetraazaporphyrins in DMSO in the presence of HClO4 is demonstra ted.