Synthesis and Characterization of Oxoruthenium (IV) Complexes That Utilize a 2,2'-Biquinoline Ligand

Stephen A. Kubow; Mary E. Marmion; Kenneth J. Takeuchi

doi:10.1021/ic00289a004

Synthesis and Characterization of Oxoruthenium (IV) Complexes That Utilize a 2,2'-Biquinoline Ligand

Stephen A. Kubow
, Mary E. Marmion
, Kenneth J. Takeuchi

Chemistry

Stony Brook University

SUNY Buffalo

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

28 Scopus citations

Abstract

Novel oxoruthenium(IV) complexes of the form [(bpy)(biq)(O)(PR³)Ru^IV] (ClO₄)₂(where bpy = 2,2'-bipyridine, biq = 2,2'- biquinoline, and PR₃ = a tertiary phosphine ligand) have been generated through the oxidation of the analogous aquoruthenium(II) species. Characterization of the oxoruthenium(IV), aquoruthenium(II), and chlororuthenium(II) complexes was accomplished through the following methods: IR spectroscopy, cyclic voltammetry, constant-potential coulometry, and UV-visible spectroscopy. The chlororuthenium(II) complex was also characterized by ¹³C NMR spectroscopy. Aqueous cyclic voltammetric measurements of the aquoruthenium(II) and oxoruthenium(IV) complexes are consistent with a mechanism involving two concomitant oneelectron, one-proton transfers: Ru^IV(O)/Ru^III(OH)/Run^II(OH₂). The oxoruthenium(IV) complexes act as oxidants toward organic substrates, where the 2,2'-biquinoline ligand has a clear effect on the kinetics of substrate oxidation.

Original language	English
Pages (from-to)	2761-2767
Number of pages	7
Journal	Inorganic Chemistry
Volume	27
Issue number	16
DOIs	https://doi.org/10.1021/ic00289a004
State	Published - 1988

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@article{ea9a1a0b7bb243c38e6ed82fa580d1c7,

title = "Synthesis and Characterization of Oxoruthenium (IV) Complexes That Utilize a 2,2'-Biquinoline Ligand",

abstract = "Novel oxoruthenium(IV) complexes of the form [(bpy)(biq)(O)(PR3)RuIV] (ClO4)2(where bpy = 2,2'-bipyridine, biq = 2,2'- biquinoline, and PR3 = a tertiary phosphine ligand) have been generated through the oxidation of the analogous aquoruthenium(II) species. Characterization of the oxoruthenium(IV), aquoruthenium(II), and chlororuthenium(II) complexes was accomplished through the following methods: IR spectroscopy, cyclic voltammetry, constant-potential coulometry, and UV-visible spectroscopy. The chlororuthenium(II) complex was also characterized by 13C NMR spectroscopy. Aqueous cyclic voltammetric measurements of the aquoruthenium(II) and oxoruthenium(IV) complexes are consistent with a mechanism involving two concomitant oneelectron, one-proton transfers: RuIV(O)/RuIII(OH)/RunII(OH2). The oxoruthenium(IV) complexes act as oxidants toward organic substrates, where the 2,2'-biquinoline ligand has a clear effect on the kinetics of substrate oxidation.",

author = "Kubow, \{Stephen A.\} and Marmion, \{Mary E.\} and Takeuchi, \{Kenneth J.\}",

year = "1988",

doi = "10.1021/ic00289a004",

language = "English",

volume = "27",

pages = "2761--2767",

journal = "Inorganic Chemistry",

issn = "0020-1669",

number = "16",

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TY - JOUR

T1 - Synthesis and Characterization of Oxoruthenium (IV) Complexes That Utilize a 2,2'-Biquinoline Ligand

AU - Kubow, Stephen A.

AU - Marmion, Mary E.

AU - Takeuchi, Kenneth J.

PY - 1988

Y1 - 1988

N2 - Novel oxoruthenium(IV) complexes of the form [(bpy)(biq)(O)(PR3)RuIV] (ClO4)2(where bpy = 2,2'-bipyridine, biq = 2,2'- biquinoline, and PR3 = a tertiary phosphine ligand) have been generated through the oxidation of the analogous aquoruthenium(II) species. Characterization of the oxoruthenium(IV), aquoruthenium(II), and chlororuthenium(II) complexes was accomplished through the following methods: IR spectroscopy, cyclic voltammetry, constant-potential coulometry, and UV-visible spectroscopy. The chlororuthenium(II) complex was also characterized by 13C NMR spectroscopy. Aqueous cyclic voltammetric measurements of the aquoruthenium(II) and oxoruthenium(IV) complexes are consistent with a mechanism involving two concomitant oneelectron, one-proton transfers: RuIV(O)/RuIII(OH)/RunII(OH2). The oxoruthenium(IV) complexes act as oxidants toward organic substrates, where the 2,2'-biquinoline ligand has a clear effect on the kinetics of substrate oxidation.

AB - Novel oxoruthenium(IV) complexes of the form [(bpy)(biq)(O)(PR3)RuIV] (ClO4)2(where bpy = 2,2'-bipyridine, biq = 2,2'- biquinoline, and PR3 = a tertiary phosphine ligand) have been generated through the oxidation of the analogous aquoruthenium(II) species. Characterization of the oxoruthenium(IV), aquoruthenium(II), and chlororuthenium(II) complexes was accomplished through the following methods: IR spectroscopy, cyclic voltammetry, constant-potential coulometry, and UV-visible spectroscopy. The chlororuthenium(II) complex was also characterized by 13C NMR spectroscopy. Aqueous cyclic voltammetric measurements of the aquoruthenium(II) and oxoruthenium(IV) complexes are consistent with a mechanism involving two concomitant oneelectron, one-proton transfers: RuIV(O)/RuIII(OH)/RunII(OH2). The oxoruthenium(IV) complexes act as oxidants toward organic substrates, where the 2,2'-biquinoline ligand has a clear effect on the kinetics of substrate oxidation.

UR - https://www.scopus.com/pages/publications/0001006021

U2 - 10.1021/ic00289a004

DO - 10.1021/ic00289a004

M3 - Article

SN - 0020-1669

VL - 27

SP - 2761

EP - 2767

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 16

ER -

Synthesis and Characterization of Oxoruthenium (IV) Complexes That Utilize a 2,2'-Biquinoline Ligand

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