Photophysical properties of tricarbonyl(histidine)(diimine)rhenium(I) complexes in aqueous solution

Ren Jay Lin; Keh Shiou Lin; I. Jy Chang

doi:10.1016/0020-1693(96)04864-5

Photophysical properties of tricarbonyl(histidine)(diimine)rhenium(I) complexes in aqueous solution

Ren Jay Lin
, Keh Shiou Lin
, I. Jy Chang^*

^*Corresponding author for this work

Department of Chemistry

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

23 Citations (Scopus)

Abstract

Four tricarbonyl(histidine)(diimine)rhenium(I) complexes have been prepared, where diimine is 2,2′-bipyridine (bpy), 4,4′-dicarboxyl-2,2′-bipyridine (bpy(COO)2)^2-, 1,10-phenanthroline (phen), and disulfonate 4,7-diphenyl-1,10-phenanthroline (phen-(phSO₃)₂)^2-. All complexes exhibit metal-to-ligand charge-transfer (MLCT) absorption in the 350-380 nm range. Excitation into the MLCT absorption bands results in orange luminescence. The emission maxima for these complexes range from 580 to 625 nm in aqueous solution at room temperature. The excited-state energy, broad emission profiles, and long excited-state lifetimes indicate emission from a ³MLCT state. The complexes with phen-type diimine ligands have much longer lifetimes than those with bpy-type diimine ligands: Re(phen(phSO₃)₂)(CO)₃(His)^-, τ = 170 ns; Re(phen)(CO)₃(His)⁺, τ = 100 ns.

Original language	English
Pages (from-to)	179-183
Number of pages	5
Journal	Inorganica Chimica Acta
Volume	242
Issue number	1-2
DOIs	https://doi.org/10.1016/0020-1693(96)04864-5
Publication status	Published - 1996 Feb 15

Keywords

Carbonyl complexes
Diimine complexes
Long-lived MLCT excited-state
Rhenium complexes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/0020-1693(96)04864-5

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@article{8437773f22e34c8eb62c9df1c3c67d4a,

title = "Photophysical properties of tricarbonyl(histidine)(diimine)rhenium(I) complexes in aqueous solution",

abstract = "Four tricarbonyl(histidine)(diimine)rhenium(I) complexes have been prepared, where diimine is 2,2′-bipyridine (bpy), 4,4′-dicarboxyl-2,2′-bipyridine (bpy(COO)2)2-, 1,10-phenanthroline (phen), and disulfonate 4,7-diphenyl-1,10-phenanthroline (phen-(phSO3)2)2-. All complexes exhibit metal-to-ligand charge-transfer (MLCT) absorption in the 350-380 nm range. Excitation into the MLCT absorption bands results in orange luminescence. The emission maxima for these complexes range from 580 to 625 nm in aqueous solution at room temperature. The excited-state energy, broad emission profiles, and long excited-state lifetimes indicate emission from a 3MLCT state. The complexes with phen-type diimine ligands have much longer lifetimes than those with bpy-type diimine ligands: Re(phen(phSO3)2)(CO)3(His)-, τ = 170 ns; Re(phen)(CO)3(His)+, τ = 100 ns.",

keywords = "Carbonyl complexes, Diimine complexes, Long-lived MLCT excited-state, Rhenium complexes",

author = "Lin, \{Ren Jay\} and Lin, \{Keh Shiou\} and Chang, \{I. Jy\}",

note = "Funding Information: We thank Dr. Jay R. Winkler for laser time at the Beckman Institute Laser Resource Center. This research is supported by the National Science Council of the Republic of China.",

year = "1996",

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doi = "10.1016/0020-1693(96)04864-5",

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pages = "179--183",

journal = "Inorganica Chimica Acta",

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AU - Lin, Ren Jay

AU - Lin, Keh Shiou

AU - Chang, I. Jy

N1 - Funding Information: We thank Dr. Jay R. Winkler for laser time at the Beckman Institute Laser Resource Center. This research is supported by the National Science Council of the Republic of China.

PY - 1996/2/15

Y1 - 1996/2/15

N2 - Four tricarbonyl(histidine)(diimine)rhenium(I) complexes have been prepared, where diimine is 2,2′-bipyridine (bpy), 4,4′-dicarboxyl-2,2′-bipyridine (bpy(COO)2)2-, 1,10-phenanthroline (phen), and disulfonate 4,7-diphenyl-1,10-phenanthroline (phen-(phSO3)2)2-. All complexes exhibit metal-to-ligand charge-transfer (MLCT) absorption in the 350-380 nm range. Excitation into the MLCT absorption bands results in orange luminescence. The emission maxima for these complexes range from 580 to 625 nm in aqueous solution at room temperature. The excited-state energy, broad emission profiles, and long excited-state lifetimes indicate emission from a 3MLCT state. The complexes with phen-type diimine ligands have much longer lifetimes than those with bpy-type diimine ligands: Re(phen(phSO3)2)(CO)3(His)-, τ = 170 ns; Re(phen)(CO)3(His)+, τ = 100 ns.

AB - Four tricarbonyl(histidine)(diimine)rhenium(I) complexes have been prepared, where diimine is 2,2′-bipyridine (bpy), 4,4′-dicarboxyl-2,2′-bipyridine (bpy(COO)2)2-, 1,10-phenanthroline (phen), and disulfonate 4,7-diphenyl-1,10-phenanthroline (phen-(phSO3)2)2-. All complexes exhibit metal-to-ligand charge-transfer (MLCT) absorption in the 350-380 nm range. Excitation into the MLCT absorption bands results in orange luminescence. The emission maxima for these complexes range from 580 to 625 nm in aqueous solution at room temperature. The excited-state energy, broad emission profiles, and long excited-state lifetimes indicate emission from a 3MLCT state. The complexes with phen-type diimine ligands have much longer lifetimes than those with bpy-type diimine ligands: Re(phen(phSO3)2)(CO)3(His)-, τ = 170 ns; Re(phen)(CO)3(His)+, τ = 100 ns.

KW - Carbonyl complexes

KW - Diimine complexes

KW - Long-lived MLCT excited-state

KW - Rhenium complexes

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Photophysical properties of tricarbonyl(histidine)(diimine)rhenium(I) complexes in aqueous solution

Abstract

Keywords

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