Electrochemical Characterization of Self‐Assembled Monolayer of a Novel Manganese Tetrabenzylthio‐Substituted Phthalocyanine and Its Use in Nitrite Oxidation

Abstract

Manganese phthalocyanine MnPc(SPh) 4 has been synthesized and used to form self assembled monolayers on gold electrodes. The well packed SAM monolayer was characterized by analyzing the blocking of a number of Faradic processes by cyclic voltammetry, evaluating the electrical characteristics of the modified electrode by electrochemical impedance and imaging the modified surface by electrochemical scanning microscopy. Finally, MnPc(SPh) 4 -SAM modified electrode displayed an electrocatalytic behavior toward the oxidation of nitrite.

Synthesis, in situ spectroelectrochemistry and in situ electrocolorimetry of electrochromic octakis(chloroethylsulfanyl) phthalocyaninatomanganese(iii) chloride

“…10 The reactivity is due to the open-shell configuration and their tendency to axially coordinate. Manganese phthalocyanines are found to be used in many instances in the literature, for example, as catalysts in the oxidation of nitrite and nitrate, [11][12][13] oxidation of L-cysteine, 14,15 reduction of molecular oxygen, 16,17 electrolysis of water, 18 aziridination of olefins, 19 also as scavengers of superoxide. 20 There are also some reports about analytical applications of manganese phthalocyanines, e.g., in the determinations of vitamin B 1 in tablets 21 and triethylamine emitted from fish, utilizing the macrocycle as a gas sensor.…”

Materials Science: L'Oréal–UNESCO Prizes to A. Kobayashi, E. Kumacheva, and T. Nyokong

“…Her other research interests are biosensors and enzyme‐like catalysts and photocatalysts. She recently reported in the European Journal of Inorganic Chemistry on the synthesis and photophysical and photochemical properties of poly(oxyethylene)‐substituted phthalocyaninato oxotitananium(IV) complexes3a and in Electroanalysis on the electrochemical characterization of self‐organizing monolayers of a tetrabenzylthio‐substituted manganese phthalocyanine and its use in nitrite oxidation 3b…”

Materialwissenschaften: L'Oréal‐UNESCO‐Preise für A. Kobayashi, E. Kumacheva und T. Nyokong

“…Ihre weiteren Forschungsinteressen sind Biosensoren sowie enzymähnliche und Photokatalysatoren. Im European Journal of Inorganic Chemistry berichtete sie zuletzt über die Synthese und photophysikalischen und ‐chemischen Eigenschaften von Poly(oxyethylen)‐substituierten Phthalocyaninato‐Oxotitan(IV)‐Komplexen3a und in Electroanalysis über die elektrochemische Charakterisierung von selbstorganisierten Monoschichten eines Tetrabenzylthio‐substituierten Manganphthalocyanins und seine Verwendung bei der Nitritoxidation 3b…”