Non-radiative processes of excited CT states of Ru(II) and Pt(II) compounds and excited d-d states of Rh(III) compounds in the solid state and at higher temperatures

Ashraful Islam; Noriaki Ikeda; Koichi Nozaki; Yasuyuiki Okamoto; Bovak Gholamkhass; Akio Yoshimura; Takeshi Ohno

doi:10.1016/s0010-8545(98)90055-8

Non-radiative processes of excited CT states of Ru(II) and Pt(II) compounds and excited d-d states of Rh(III) compounds in the solid state and at higher temperatures

Ashraful Islam^*, Noriaki Ikeda, Koichi Nozaki, Yasuyuiki Okamoto, Bovak Gholamkhass, Akio Yoshimura, Takeshi Ohno

^*Corresponding author for this work

Department of Chemistry

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

35 Scopus citations

Abstract

Radiative and non-radiative processes of excited CT states of Ru(II) and Pt(II) compounds and excited d-d states of Rh(III) compounds in the solid state and at higher temperatures are examined. A rapid non-radiative transition of a metal-to-ligand charge transfer excited state to the ground state does not occur over a wide temperature range (77-300 K) for [Ru(bpy)₃](PF₆)₂ and [Pt₂(tpy)₂(guanidinato)](ClO₄)₃. Spectral simulations of the d-d emissions of Rh(III) compounds in the range 77-536 K are carried out by assuming a simple configuration coordinate. The large Huang-Rhys factors indicate that the lowest and second lowest d-d excited states of Rh(III) compounds are strongly coupled to the excited vibrational state of the ground state. The frequency factors of non-radiative decay are 10¹¹-10¹² s^-1 for the excited triplet state.

Original language	English
Pages (from-to)	355-363
Number of pages	9
Journal	Coordination Chemistry Reviews
Volume	171
Issue number	1
DOIs	https://doi.org/10.1016/s0010-8545(98)90055-8
State	Published - 1998/04

Keywords

CT excited states
Nonradiative processes
Pt(II)
Rh(III)
Ru(II)
d-d Excited states

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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title = "Non-radiative processes of excited CT states of Ru(II) and Pt(II) compounds and excited d-d states of Rh(III) compounds in the solid state and at higher temperatures",

abstract = "Radiative and non-radiative processes of excited CT states of Ru(II) and Pt(II) compounds and excited d-d states of Rh(III) compounds in the solid state and at higher temperatures are examined. A rapid non-radiative transition of a metal-to-ligand charge transfer excited state to the ground state does not occur over a wide temperature range (77-300 K) for [Ru(bpy)3](PF6)2 and [Pt2(tpy)2(guanidinato)](ClO4)3. Spectral simulations of the d-d emissions of Rh(III) compounds in the range 77-536 K are carried out by assuming a simple configuration coordinate. The large Huang-Rhys factors indicate that the lowest and second lowest d-d excited states of Rh(III) compounds are strongly coupled to the excited vibrational state of the ground state. The frequency factors of non-radiative decay are 1011-1012 s-1 for the excited triplet state.",

keywords = "CT excited states, Nonradiative processes, Pt(II), Rh(III), Ru(II), d-d Excited states",

author = "Ashraful Islam and Noriaki Ikeda and Koichi Nozaki and Yasuyuiki Okamoto and Bovak Gholamkhass and Akio Yoshimura and Takeshi Ohno",

year = "1998",

month = apr,

doi = "10.1016/s0010-8545(98)90055-8",

language = "英語",

volume = "171",

pages = "355--363",

journal = "Coordination Chemistry Reviews",

issn = "0010-8545",

publisher = "Elsevier B.V.",

number = "1",

}

TY - JOUR

T1 - Non-radiative processes of excited CT states of Ru(II) and Pt(II) compounds and excited d-d states of Rh(III) compounds in the solid state and at higher temperatures

AU - Islam, Ashraful

AU - Ikeda, Noriaki

AU - Nozaki, Koichi

AU - Okamoto, Yasuyuiki

AU - Gholamkhass, Bovak

AU - Yoshimura, Akio

AU - Ohno, Takeshi

PY - 1998/4

Y1 - 1998/4

N2 - Radiative and non-radiative processes of excited CT states of Ru(II) and Pt(II) compounds and excited d-d states of Rh(III) compounds in the solid state and at higher temperatures are examined. A rapid non-radiative transition of a metal-to-ligand charge transfer excited state to the ground state does not occur over a wide temperature range (77-300 K) for [Ru(bpy)3](PF6)2 and [Pt2(tpy)2(guanidinato)](ClO4)3. Spectral simulations of the d-d emissions of Rh(III) compounds in the range 77-536 K are carried out by assuming a simple configuration coordinate. The large Huang-Rhys factors indicate that the lowest and second lowest d-d excited states of Rh(III) compounds are strongly coupled to the excited vibrational state of the ground state. The frequency factors of non-radiative decay are 1011-1012 s-1 for the excited triplet state.

AB - Radiative and non-radiative processes of excited CT states of Ru(II) and Pt(II) compounds and excited d-d states of Rh(III) compounds in the solid state and at higher temperatures are examined. A rapid non-radiative transition of a metal-to-ligand charge transfer excited state to the ground state does not occur over a wide temperature range (77-300 K) for [Ru(bpy)3](PF6)2 and [Pt2(tpy)2(guanidinato)](ClO4)3. Spectral simulations of the d-d emissions of Rh(III) compounds in the range 77-536 K are carried out by assuming a simple configuration coordinate. The large Huang-Rhys factors indicate that the lowest and second lowest d-d excited states of Rh(III) compounds are strongly coupled to the excited vibrational state of the ground state. The frequency factors of non-radiative decay are 1011-1012 s-1 for the excited triplet state.

KW - CT excited states

KW - Nonradiative processes

KW - Pt(II)

KW - Rh(III)

KW - Ru(II)

KW - d-d Excited states

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U2 - 10.1016/s0010-8545(98)90055-8

DO - 10.1016/s0010-8545(98)90055-8

M3 - 学術論文

AN - SCOPUS:0032045191

SN - 0010-8545

VL - 171

SP - 355

EP - 363

JO - Coordination Chemistry Reviews

JF - Coordination Chemistry Reviews

IS - 1

ER -

Non-radiative processes of excited CT states of Ru(II) and Pt(II) compounds and excited d-d states of Rh(III) compounds in the solid state and at higher temperatures

Abstract

Keywords

ASJC Scopus subject areas

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