Structural and mechanistic studies of coordination compounds. 35. Steric effects and the dissociative mechanisms for simple ligand substitution reactions and base hydrolysis of some ruthenium(III) amine complexes

Chung-Kwong Poon; Tai-Chu Lau

doi:10.1021/ic00153a021

Structural and mechanistic studies of coordination compounds. 35. Steric effects and the dissociative mechanisms for simple ligand substitution reactions and base hydrolysis of some ruthenium(III) amine complexes

Chung-Kwong Poon, Tai-Chu Lau

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

2 Citations (Scopus)

Abstract

Kinetics of substitution reactions of trans-[Ru(teta)Cl₂]⁺ by bromide and of trans-[Ru(L)Br₂]⁺ (L = teta or tetb) by chloride have been studied over a range of temperatures. The observed steric acceleration of k₁(teb) > k₁(teta) > k₁(cyclam) for the release of the first coordinated halide from analogous dihalogen complexes supports a dissociative mechanism for these reactions. A similar trend of steric acceleration has also been found to support the S_N1cB mechanism for the base hydrolysis of trans-[Ru(L)ACl]⁺ (L = tetb, teta, or cyclam; A = Cl or OH). © 1983 American Chemical Society.

Original language	English
Pages (from-to)	1664-1667
Journal	Inorganic Chemistry
Volume	22
Issue number	11
DOIs	https://doi.org/10.1021/ic00153a021
Publication status	Published - 1983
Externally published	Yes

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title = "Structural and mechanistic studies of coordination compounds. 35. Steric effects and the dissociative mechanisms for simple ligand substitution reactions and base hydrolysis of some ruthenium(III) amine complexes",

abstract = "Kinetics of substitution reactions of trans-[Ru(teta)Cl2]+ by bromide and of trans-[Ru(L)Br2]+ (L = teta or tetb) by chloride have been studied over a range of temperatures. The observed steric acceleration of k1(teb) > k1(teta) > k1(cyclam) for the release of the first coordinated halide from analogous dihalogen complexes supports a dissociative mechanism for these reactions. A similar trend of steric acceleration has also been found to support the SN1cB mechanism for the base hydrolysis of trans-[Ru(L)ACl]+ (L = tetb, teta, or cyclam; A = Cl or OH). {\textcopyright} 1983 American Chemical Society.",

author = "Chung-Kwong Poon and Tai-Chu Lau",

year = "1983",

doi = "10.1021/ic00153a021",

language = "English",

volume = "22",

pages = "1664--1667",

journal = "Inorganic Chemistry",

issn = "0020-1669",

publisher = "American Chemical Society",

number = "11",

}

Structural and mechanistic studies of coordination compounds. 35. Steric effects and the dissociative mechanisms for simple ligand substitution reactions and base hydrolysis of some ruthenium(III) amine complexes. / Poon, Chung-Kwong; Lau, Tai-Chu.
In: Inorganic Chemistry, Vol. 22, No. 11, 1983, p. 1664-1667.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Structural and mechanistic studies of coordination compounds. 35. Steric effects and the dissociative mechanisms for simple ligand substitution reactions and base hydrolysis of some ruthenium(III) amine complexes

AU - Poon, Chung-Kwong

AU - Lau, Tai-Chu

PY - 1983

Y1 - 1983

N2 - Kinetics of substitution reactions of trans-[Ru(teta)Cl2]+ by bromide and of trans-[Ru(L)Br2]+ (L = teta or tetb) by chloride have been studied over a range of temperatures. The observed steric acceleration of k1(teb) > k1(teta) > k1(cyclam) for the release of the first coordinated halide from analogous dihalogen complexes supports a dissociative mechanism for these reactions. A similar trend of steric acceleration has also been found to support the SN1cB mechanism for the base hydrolysis of trans-[Ru(L)ACl]+ (L = tetb, teta, or cyclam; A = Cl or OH). © 1983 American Chemical Society.

AB - Kinetics of substitution reactions of trans-[Ru(teta)Cl2]+ by bromide and of trans-[Ru(L)Br2]+ (L = teta or tetb) by chloride have been studied over a range of temperatures. The observed steric acceleration of k1(teb) > k1(teta) > k1(cyclam) for the release of the first coordinated halide from analogous dihalogen complexes supports a dissociative mechanism for these reactions. A similar trend of steric acceleration has also been found to support the SN1cB mechanism for the base hydrolysis of trans-[Ru(L)ACl]+ (L = tetb, teta, or cyclam; A = Cl or OH). © 1983 American Chemical Society.

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U2 - 10.1021/ic00153a021

DO - 10.1021/ic00153a021

M3 - RGC 21 - Publication in refereed journal

SN - 0020-1669

VL - 22

SP - 1664

EP - 1667

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 11

ER -

Structural and mechanistic studies of coordination compounds. 35. Steric effects and the dissociative mechanisms for simple ligand substitution reactions and base hydrolysis of some ruthenium(III) amine complexes

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