A Novel Deuterium Effect on Dual Charge-Transfer and Ligand-Field Emission of the c/s-Dichlorobis(2, 2'-bipyridine)iridium(III) Ion

Richard J. Watts; Shlomo Efrima; Horia Metiu

doi:10.1021/ja00504a048

A Novel Deuterium Effect on Dual Charge-Transfer and Ligand-Field Emission of the c/s-Dichlorobis(2, 2'-bipyridine)iridium(III) Ion

Richard J. Watts
, Shlomo Efrima
, Horia Metiu

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

28 Scopus citations

Abstract

Recent studies of the dual charge-transfer and ligand-field emissions of the IrCl₂(phen)₂⁺ ion^{1, 2} (phen = 1, 10-phenanthroline) have been extended to the structurally similar IrCl₂(bpy)₂⁺ complex ion (bpy = 2, 2'-bipyridine), which is also found to display two emissions. In the course of this study the perdeuterated analogue, IrCl₂(bpy-d₈)₂⁺ was prepared, and several interesting deuterium effects on the luminescent properties have been observed. These include (i) a large increase in the lifetime for the ligand-field emission at 77 K; (ii) no change in the lifetime of the charge-transfer emission at 77 K; and (iii) a change in the ratio of the charge-transfer and ligand-field emission intensities in fluid DMF solutions.

Original language	English
Pages (from-to)	2742-2743
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	101
Issue number	10
DOIs	https://doi.org/10.1021/ja00504a048
State	Published - 1 Jan 1979
Externally published	Yes

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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title = "A Novel Deuterium Effect on Dual Charge-Transfer and Ligand-Field Emission of the c/s-Dichlorobis(2, 2'-bipyridine)iridium(III) Ion",

abstract = "Recent studies of the dual charge-transfer and ligand-field emissions of the IrCl2(phen)2+ ion1, 2 (phen = 1, 10-phenanthroline) have been extended to the structurally similar IrCl2(bpy)2+ complex ion (bpy = 2, 2'-bipyridine), which is also found to display two emissions. In the course of this study the perdeuterated analogue, IrCl2(bpy-d8)2+ was prepared, and several interesting deuterium effects on the luminescent properties have been observed. These include (i) a large increase in the lifetime for the ligand-field emission at 77 K; (ii) no change in the lifetime of the charge-transfer emission at 77 K; and (iii) a change in the ratio of the charge-transfer and ligand-field emission intensities in fluid DMF solutions.",

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T1 - A Novel Deuterium Effect on Dual Charge-Transfer and Ligand-Field Emission of the c/s-Dichlorobis(2, 2'-bipyridine)iridium(III) Ion

AU - Watts, Richard J.

AU - Efrima, Shlomo

AU - Metiu, Horia

PY - 1979/1/1

Y1 - 1979/1/1

N2 - Recent studies of the dual charge-transfer and ligand-field emissions of the IrCl2(phen)2+ ion1, 2 (phen = 1, 10-phenanthroline) have been extended to the structurally similar IrCl2(bpy)2+ complex ion (bpy = 2, 2'-bipyridine), which is also found to display two emissions. In the course of this study the perdeuterated analogue, IrCl2(bpy-d8)2+ was prepared, and several interesting deuterium effects on the luminescent properties have been observed. These include (i) a large increase in the lifetime for the ligand-field emission at 77 K; (ii) no change in the lifetime of the charge-transfer emission at 77 K; and (iii) a change in the ratio of the charge-transfer and ligand-field emission intensities in fluid DMF solutions.

AB - Recent studies of the dual charge-transfer and ligand-field emissions of the IrCl2(phen)2+ ion1, 2 (phen = 1, 10-phenanthroline) have been extended to the structurally similar IrCl2(bpy)2+ complex ion (bpy = 2, 2'-bipyridine), which is also found to display two emissions. In the course of this study the perdeuterated analogue, IrCl2(bpy-d8)2+ was prepared, and several interesting deuterium effects on the luminescent properties have been observed. These include (i) a large increase in the lifetime for the ligand-field emission at 77 K; (ii) no change in the lifetime of the charge-transfer emission at 77 K; and (iii) a change in the ratio of the charge-transfer and ligand-field emission intensities in fluid DMF solutions.

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ER -

A Novel Deuterium Effect on Dual Charge-Transfer and Ligand-Field Emission of the c/s-Dichlorobis(2, 2'-bipyridine)iridium(III) Ion

Abstract

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