Reactions of SO2 with trans-Ir(CO)(Cl)(TPPTS)2 in water

A. A. Bowden; J. D. Atwood

doi:10.1139/v01-055

Reactions of SO₂ with trans-Ir(CO)(Cl)(TPPTS)₂ in water

A. A. Bowden
, J. D. Atwood

Chemistry

SUNY Buffalo

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

1 Scopus citations

Abstract

Reaction of SO₂ with trans-Ir(CO)(Cl)(TPPTS)₂ in water mirrors the nature of SO₂ dissolved in water. At low pH (pH = 1) where SO₂ exists as the hydrated species SO₂·H₂O, only Ir(CO)(Cl)(SO₂)(TPPTS)₂ forms. At higher pH (pH = 6) where HSO₃^- dominates, no SO₂ complex is observed and a hydride, Ir(CO)(Cl)(H)(OH)(TPPTS)₂, is the primary product. A mixture of SO₂ and O₂ does not lead to an iridium sulfate or show any evidence of the dioxygen adduct upon reaction in water with trans-Ir(CO)(Cl)(TPPTS)₂, in contrast to the analogous reaction in organic solvents. In water, only the SO₂ complex, Ir(CO)(Cl)(SO₂)(TPPTS)₂, is observed prior to decomposition. The contrasts to the PPh₃ analogues in organic solvents provide further insight to water as a solvent for organometallic complexes.

Original language	English
Pages (from-to)	1036-1039
Number of pages	4
Journal	Canadian Journal of Chemistry
Volume	79
Issue number	5-6
DOIs	https://doi.org/10.1139/v01-055
State	Published - 2001

Keywords

Iridium(I)
Sulfur dioxide
TPPTS
Water soluble

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title = "Reactions of SO2 with trans-Ir(CO)(Cl)(TPPTS)2 in water",

abstract = "Reaction of SO2 with trans-Ir(CO)(Cl)(TPPTS)2 in water mirrors the nature of SO2 dissolved in water. At low pH (pH = 1) where SO2 exists as the hydrated species SO2·H2O, only Ir(CO)(Cl)(SO2)(TPPTS)2 forms. At higher pH (pH = 6) where HSO3- dominates, no SO2 complex is observed and a hydride, Ir(CO)(Cl)(H)(OH)(TPPTS)2, is the primary product. A mixture of SO2 and O2 does not lead to an iridium sulfate or show any evidence of the dioxygen adduct upon reaction in water with trans-Ir(CO)(Cl)(TPPTS)2, in contrast to the analogous reaction in organic solvents. In water, only the SO2 complex, Ir(CO)(Cl)(SO2)(TPPTS)2, is observed prior to decomposition. The contrasts to the PPh3 analogues in organic solvents provide further insight to water as a solvent for organometallic complexes.",

keywords = "Iridium(I), Sulfur dioxide, TPPTS, Water soluble",

author = "Bowden, \{A. A.\} and Atwood, \{J. D.\}",

year = "2001",

doi = "10.1139/v01-055",

language = "English",

volume = "79",

pages = "1036--1039",

journal = "Canadian Journal of Chemistry",

issn = "0008-4042",

publisher = "National Research Council of Canada",

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TY - JOUR

T1 - Reactions of SO2 with trans-Ir(CO)(Cl)(TPPTS)2 in water

AU - Bowden, A. A.

AU - Atwood, J. D.

PY - 2001

Y1 - 2001

N2 - Reaction of SO2 with trans-Ir(CO)(Cl)(TPPTS)2 in water mirrors the nature of SO2 dissolved in water. At low pH (pH = 1) where SO2 exists as the hydrated species SO2·H2O, only Ir(CO)(Cl)(SO2)(TPPTS)2 forms. At higher pH (pH = 6) where HSO3- dominates, no SO2 complex is observed and a hydride, Ir(CO)(Cl)(H)(OH)(TPPTS)2, is the primary product. A mixture of SO2 and O2 does not lead to an iridium sulfate or show any evidence of the dioxygen adduct upon reaction in water with trans-Ir(CO)(Cl)(TPPTS)2, in contrast to the analogous reaction in organic solvents. In water, only the SO2 complex, Ir(CO)(Cl)(SO2)(TPPTS)2, is observed prior to decomposition. The contrasts to the PPh3 analogues in organic solvents provide further insight to water as a solvent for organometallic complexes.

AB - Reaction of SO2 with trans-Ir(CO)(Cl)(TPPTS)2 in water mirrors the nature of SO2 dissolved in water. At low pH (pH = 1) where SO2 exists as the hydrated species SO2·H2O, only Ir(CO)(Cl)(SO2)(TPPTS)2 forms. At higher pH (pH = 6) where HSO3- dominates, no SO2 complex is observed and a hydride, Ir(CO)(Cl)(H)(OH)(TPPTS)2, is the primary product. A mixture of SO2 and O2 does not lead to an iridium sulfate or show any evidence of the dioxygen adduct upon reaction in water with trans-Ir(CO)(Cl)(TPPTS)2, in contrast to the analogous reaction in organic solvents. In water, only the SO2 complex, Ir(CO)(Cl)(SO2)(TPPTS)2, is observed prior to decomposition. The contrasts to the PPh3 analogues in organic solvents provide further insight to water as a solvent for organometallic complexes.

KW - Iridium(I)

KW - Sulfur dioxide

KW - TPPTS

KW - Water soluble

UR - https://www.scopus.com/pages/publications/0034890334

U2 - 10.1139/v01-055

DO - 10.1139/v01-055

M3 - Article

AN - SCOPUS:0034890334

SN - 0008-4042

VL - 79

SP - 1036

EP - 1039

JO - Canadian Journal of Chemistry

JF - Canadian Journal of Chemistry

IS - 5-6

ER -

Reactions of SO₂ with trans-Ir(CO)(Cl)(TPPTS)₂ in water

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Keywords

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