Oxalate Formation in Electrochemical CO2 Reduction Catalyzed by Rhodium-Sulfur Cluster.

Y Kushi, H Nagao, T Nishioka, K Isobe, K Tanaka

Index: Kushi, Yoshinori; Nagao, Hirotaka; Nishioka, Takanori; Isobe, Kiyoshi; Tanaka, Koji Chemistry Letters, 1994 , # 11 p. 2175 - 2178

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Citation Number: 19

Abstract

Electrochemical reduction of CO 2 catalyzed by a triangular rhodium complex [(RhC p*) 3 (μ 3-S) 2] 2+ selectively produced formate and oxalate in the presence of Bu 4 NBF 4 and LiBF 4, respectively, under the controlled potential electrolysis at− 1.50 V (vs. SCE) in CO 2- saturated CH 3 CN. A solution IR spectrum evidenced the adduct formation between [(RhC p*) 3 (μ 3-S) 2] 0 and CO 2 as the possible precursor for the oxalate formation.