Reactions of Hydrogen Peroxide with Metal Complexes. 5.1 Mechanism of the Peroxo Complex Formation of (Nitrilotriacetato)dioxovanadate(V) As Studied by a High-Pressure Stopped-Flow Technique

Shigenobu Funahashi; Koji Ishihara; Motoharu Tanaka

doi:10.1021/ic50215a013

Reactions of Hydrogen Peroxide with Metal Complexes. 5.¹ Mechanism of the Peroxo Complex Formation of (Nitrilotriacetato)dioxovanadate(V) As Studied by a High-Pressure Stopped-Flow Technique

Shigenobu Funahashi, Koji Ishihara, Motoharu Tanaka^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

44 Citations (Scopus)

Abstract

A high-pressure stopped-flow apparatus has been exploited which enables us to follow reactions with a half-life longer than 0.1 s under pressure up to 1600 kg cm^-2. The rate for the formation of the peroxo complex of (nitrilotriacetato)dioxovanadate(V) (VO₂(nta)^2-) is expressed as d[VO(O₂)(nta)^2-]/dt = (k₁ + k₂[H⁺])[VO₂(nta)^2-] [H₂O₂], where k₁ = 7.05 m^-1 s^-1, k₂ = 1.46 X 104 m^-2 s^-1 at 25 °C and I = 1.05 m at atmospheric pressure and the volumes of activation for the k₁ and k₂ paths are -3.4 ± 0.5 and 1.5 ± 0.5 cm³ mol^-1, respectively. An associative mechanism is most probably operative.

Original language	English
Pages (from-to)	51-55
Number of pages	5
Journal	Inorganic Chemistry
Volume	20
Issue number	1
DOIs	https://doi.org/10.1021/ic50215a013
Publication status	Published - 1981 Jan
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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Reactions of Hydrogen Peroxide with Metal Complexes. 5.¹ Mechanism of the Peroxo Complex Formation of (Nitrilotriacetato)dioxovanadate(V) As Studied by a High-Pressure Stopped-Flow Technique. / Funahashi, Shigenobu; Ishihara, Koji; Tanaka, Motoharu.

In: Inorganic Chemistry, Vol. 20, No. 1, 01.1981, p. 51-55.

Research output: Contribution to journal › Article › peer-review

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abstract = "A high-pressure stopped-flow apparatus has been exploited which enables us to follow reactions with a half-life longer than 0.1 s under pressure up to 1600 kg cm-2. The rate for the formation of the peroxo complex of (nitrilotriacetato)dioxovanadate(V) (VO2(nta)2-) is expressed as d[VO(O2)(nta)2-]/dt = (k1 + k2[H+])[VO2(nta)2-] [H2O2], where k1 = 7.05 m-1 s-1, k2 = 1.46 X 104 m-2 s-1 at 25 °C and I = 1.05 m at atmospheric pressure and the volumes of activation for the k1 and k2 paths are -3.4 ± 0.5 and 1.5 ± 0.5 cm3 mol-1, respectively. An associative mechanism is most probably operative.",

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AU - Tanaka, Motoharu

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N2 - A high-pressure stopped-flow apparatus has been exploited which enables us to follow reactions with a half-life longer than 0.1 s under pressure up to 1600 kg cm-2. The rate for the formation of the peroxo complex of (nitrilotriacetato)dioxovanadate(V) (VO2(nta)2-) is expressed as d[VO(O2)(nta)2-]/dt = (k1 + k2[H+])[VO2(nta)2-] [H2O2], where k1 = 7.05 m-1 s-1, k2 = 1.46 X 104 m-2 s-1 at 25 °C and I = 1.05 m at atmospheric pressure and the volumes of activation for the k1 and k2 paths are -3.4 ± 0.5 and 1.5 ± 0.5 cm3 mol-1, respectively. An associative mechanism is most probably operative.

AB - A high-pressure stopped-flow apparatus has been exploited which enables us to follow reactions with a half-life longer than 0.1 s under pressure up to 1600 kg cm-2. The rate for the formation of the peroxo complex of (nitrilotriacetato)dioxovanadate(V) (VO2(nta)2-) is expressed as d[VO(O2)(nta)2-]/dt = (k1 + k2[H+])[VO2(nta)2-] [H2O2], where k1 = 7.05 m-1 s-1, k2 = 1.46 X 104 m-2 s-1 at 25 °C and I = 1.05 m at atmospheric pressure and the volumes of activation for the k1 and k2 paths are -3.4 ± 0.5 and 1.5 ± 0.5 cm3 mol-1, respectively. An associative mechanism is most probably operative.

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Reactions of Hydrogen Peroxide with Metal Complexes. 5.¹ Mechanism of the Peroxo Complex Formation of (Nitrilotriacetato)dioxovanadate(V) As Studied by a High-Pressure Stopped-Flow Technique

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