Kinetics and mechanism of acid hydrolysis of bis(dicarboxylato)-carbonatochromate(III) complexes.

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概要

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• A study has been made of the acid-catalysed aquation reactions of three complex ions of the general formula [Cr(XX)<SUB>2</SUB>(CO<SUB>3</SUB>)]<SUP>3−</SUP>, where XX=oxalate, malonate, or methylmalonate, by stopped-flow spectrophotometry in the acid range 0.1–2.0 M (M=mol dm<SUP>−3</SUP>) and 20–35°C at an ionic strength of 2 M. Only the ring-opening reaction of the carbonate is observed, <I>k</I>=2.12, 3.28, and 4.02 M<SUP>−1</SUP> s<SUP>−1</SUP> at 25°C respectively for oxalato, malonato, and methylmalonato complexes as the subsequent decarboxylation is too fast to measure. The observed trend was explained in terms of the basicity of the coordinated inert ligands.

• 公益社団法人 日本化学会の論文

著者

• Pandit M.

  Centre for Cellular and Molecular Biology

• Sai C.

  School of Chemistry, Andhra University

• Anipindi N.

  School of Chemistry, Andhra University

• Subbiah V.

  Centre for Cellular and Molecular Biology

関連論文

• Kinetics and mechanism of acid hydrolysis of bis(dicarboxylato)-carbonatochromate(III) complexes.

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