Journal of Siberian Federal University. Chemistry / Effect of Ligands coordinated at Platinum atom on Redox Properties of Binuclear Manganese-Platinum Phenylvinylidene Complexes

Full text (.pdf)
Issue
Journal of Siberian Federal University. Chemistry. 2018 11 (4)
Authors
Burmakina, Galina V.; Verpekin, Victor V.; Zimonin, Dmitry V.; Chudin, Oleg S.; Rubaylo, Anatoly I.
Contact information
Burmakina, Galina V.: Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Scientific Center of the SB RAS” 50/24 Akademgorodok, Krasnoyarsk, 660036, Russia ;Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia; ; Verpekin, Victor V.: Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Scientific Center of the SB RAS” 50/24 Akademgorodok, Krasnoyarsk, 660036, Russia; Zimonin, Dmitry V.: Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Scientific Center of the SB RAS” 50/24 Akademgorodok, Krasnoyarsk, 660036, Russia; Chudin, Oleg S.: Institute of Chemistry and Chemical Technology SB RAS FRC ‘‘Krasnoyarsk Science Center SB RAS” 50/24 Akademgorodok, Krasnoyarsk, 660036, Russia;; Rubaylo, Anatoly I.: Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Scientific Center of the SB RAS” 50/24 Akademgorodok, Krasnoyarsk, 660036, Russia; Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia
Keywords
electrochemistry; redox properties; binuclear complexes; phenylinylidene; manganese; platinum; phosphorus containing ligands
Abstract

The redox properties of binuclear heterometallic complexes Cp(CO)2MnPt(μ-C1=C2HPh)(L)(L’) [L = L’ = PPh3 (1); L = PPh2H; L’ = PPh3 (2); L = CO, L’ = PPh3 (3); L = L’ = P(OPri)3 (4); L = PPh2H; L’ = P(OPri)3 (5); L = CO, L’ = P(OPri)3 (6)] were studied by electrochemical methods at platinum, glassed carbon and dropping mercury electrodes in acetonitrile. Electrochemical behavior of the complexes were shown to depend on the nature of L, L’ ligands at the platinum atom. It was established that one-electron oxidation of 1, 2, 4, 5 results in a cleavage of the Mn-Pt and the Pt-C1 bonds to give mononuclear phenylvinylidene complex Cp(CO)2Mn=C=CHPh (7) and [PtLL′] fragments. The quasireversible one-electron oxidation of 3 and 6 is indicating their stronger electrochemical stability in redox-reaction compare to 1, 2, 4, 5

Pages
543-551
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/109216