Synthesis and properties of electrochemiluminescent dinuclear Ru(II) complexes assembled with ester-bridged bis(bipyridine) ligands

Eun Hwa Kim; Subong Hong; Joong Min Lee; Do Nam Lee; Young Moo Jun; Won Yong Lee; Byeong Hyo Kim

doi:10.1016/j.ica.2008.08.002

Synthesis and properties of electrochemiluminescent dinuclear Ru(II) complexes assembled with ester-bridged bis(bipyridine) ligands

Eun Hwa Kim, Subong Hong, Joong Min Lee, Do Nam Lee, Young Moo Jun, Won Yong Lee, Byeong Hyo Kim

Department of Chemistry

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

8 Citations (Scopus)

Abstract

New bridging ligands, such as bpy-(COOCH₂)-bpy (BL1), mbpy-(CH₂)₃COOCH₂-bpy (BL2), bpy-COO(CH₂)₆OOC-bpy (BL3), and bpy-COOCH₂PhPhCH₂OOC-bpy (BL4), have been synthesized and coordinated to [RuL₂(acetone)₂](PF₆)₂ for various [Ru(L)₂(BL)Ru(L)₂](PF₆)₄-type dinuclear ruthenium complexes (where BL = BL1, BL2, BL3, BL4, and L = bpy, o-phen, DTDP). Their electrochemical redox potentials, spectroscopic properties and relative electrochemiluminescence were investigated in detail. All dinuclear Ru complexes exhibit MLCT (metal-to-ligand charge transfer) absorption and luminescence bands in the visible region. ECL intensities of dinuclear ruthenium(II) complexes were affected not only by the kind of the ligand, but also by the nature of the bridging ligand. Among the synthesized dinuclear Ru complexes, [(DTDP)₂Ru(mbpy)-(CH₂)₃COOCH₂-(bpy)Ru(DTDP)₂](PF₆)₄ exhibited enhanced ECL intensities as high as 2.9 times greater than that of the reference, [Ru(o-phen)₃](PF₆)₂.

Original language	English
Pages (from-to)	1577-1584
Number of pages	8
Journal	Inorganica Chimica Acta
Volume	362
Issue number	5
DOIs	https://doi.org/10.1016/j.ica.2008.08.002
Publication status	Published - 2009 Apr 1

Bibliographical note

Funding Information:
Financial supports from Kwangwoon University in the year 2007, Center for Bioactive Molecular Hybrids, and the RRC program of Ministry of Commerce, Industry and Energy are greatly acknowledged. J.M.L. acknowledges the support of the BK 21 program of the Ministry of Education.

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/j.ica.2008.08.002

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title = "Synthesis and properties of electrochemiluminescent dinuclear Ru(II) complexes assembled with ester-bridged bis(bipyridine) ligands",

abstract = "New bridging ligands, such as bpy-(COOCH2)-bpy (BL1), mbpy-(CH2)3COOCH2-bpy (BL2), bpy-COO(CH2)6OOC-bpy (BL3), and bpy-COOCH2PhPhCH2OOC-bpy (BL4), have been synthesized and coordinated to [RuL2(acetone)2](PF6)2 for various [Ru(L)2(BL)Ru(L)2](PF6)4-type dinuclear ruthenium complexes (where BL = BL1, BL2, BL3, BL4, and L = bpy, o-phen, DTDP). Their electrochemical redox potentials, spectroscopic properties and relative electrochemiluminescence were investigated in detail. All dinuclear Ru complexes exhibit MLCT (metal-to-ligand charge transfer) absorption and luminescence bands in the visible region. ECL intensities of dinuclear ruthenium(II) complexes were affected not only by the kind of the ligand, but also by the nature of the bridging ligand. Among the synthesized dinuclear Ru complexes, [(DTDP)2Ru(mbpy)-(CH2)3COOCH2-(bpy)Ru(DTDP)2](PF6)4 exhibited enhanced ECL intensities as high as 2.9 times greater than that of the reference, [Ru(o-phen)3](PF6)2.",

author = "Kim, {Eun Hwa} and Subong Hong and Lee, {Joong Min} and Lee, {Do Nam} and Jun, {Young Moo} and Lee, {Won Yong} and Kim, {Byeong Hyo}",

note = "Funding Information: Financial supports from Kwangwoon University in the year 2007, Center for Bioactive Molecular Hybrids, and the RRC program of Ministry of Commerce, Industry and Energy are greatly acknowledged. J.M.L. acknowledges the support of the BK 21 program of the Ministry of Education.",

year = "2009",

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doi = "10.1016/j.ica.2008.08.002",

language = "English",

volume = "362",

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journal = "Inorganica Chimica Acta",

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T1 - Synthesis and properties of electrochemiluminescent dinuclear Ru(II) complexes assembled with ester-bridged bis(bipyridine) ligands

AU - Kim, Eun Hwa

AU - Hong, Subong

AU - Lee, Joong Min

AU - Lee, Do Nam

AU - Jun, Young Moo

AU - Lee, Won Yong

AU - Kim, Byeong Hyo

N1 - Funding Information: Financial supports from Kwangwoon University in the year 2007, Center for Bioactive Molecular Hybrids, and the RRC program of Ministry of Commerce, Industry and Energy are greatly acknowledged. J.M.L. acknowledges the support of the BK 21 program of the Ministry of Education.

PY - 2009/4/1

Y1 - 2009/4/1

N2 - New bridging ligands, such as bpy-(COOCH2)-bpy (BL1), mbpy-(CH2)3COOCH2-bpy (BL2), bpy-COO(CH2)6OOC-bpy (BL3), and bpy-COOCH2PhPhCH2OOC-bpy (BL4), have been synthesized and coordinated to [RuL2(acetone)2](PF6)2 for various [Ru(L)2(BL)Ru(L)2](PF6)4-type dinuclear ruthenium complexes (where BL = BL1, BL2, BL3, BL4, and L = bpy, o-phen, DTDP). Their electrochemical redox potentials, spectroscopic properties and relative electrochemiluminescence were investigated in detail. All dinuclear Ru complexes exhibit MLCT (metal-to-ligand charge transfer) absorption and luminescence bands in the visible region. ECL intensities of dinuclear ruthenium(II) complexes were affected not only by the kind of the ligand, but also by the nature of the bridging ligand. Among the synthesized dinuclear Ru complexes, [(DTDP)2Ru(mbpy)-(CH2)3COOCH2-(bpy)Ru(DTDP)2](PF6)4 exhibited enhanced ECL intensities as high as 2.9 times greater than that of the reference, [Ru(o-phen)3](PF6)2.

AB - New bridging ligands, such as bpy-(COOCH2)-bpy (BL1), mbpy-(CH2)3COOCH2-bpy (BL2), bpy-COO(CH2)6OOC-bpy (BL3), and bpy-COOCH2PhPhCH2OOC-bpy (BL4), have been synthesized and coordinated to [RuL2(acetone)2](PF6)2 for various [Ru(L)2(BL)Ru(L)2](PF6)4-type dinuclear ruthenium complexes (where BL = BL1, BL2, BL3, BL4, and L = bpy, o-phen, DTDP). Their electrochemical redox potentials, spectroscopic properties and relative electrochemiluminescence were investigated in detail. All dinuclear Ru complexes exhibit MLCT (metal-to-ligand charge transfer) absorption and luminescence bands in the visible region. ECL intensities of dinuclear ruthenium(II) complexes were affected not only by the kind of the ligand, but also by the nature of the bridging ligand. Among the synthesized dinuclear Ru complexes, [(DTDP)2Ru(mbpy)-(CH2)3COOCH2-(bpy)Ru(DTDP)2](PF6)4 exhibited enhanced ECL intensities as high as 2.9 times greater than that of the reference, [Ru(o-phen)3](PF6)2.

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SP - 1577

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JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

IS - 5

ER -

Synthesis and properties of electrochemiluminescent dinuclear Ru(II) complexes assembled with ester-bridged bis(bipyridine) ligands

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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