Electrochemiluminescent dinuclear Ru(II) complexes assembled with 1,1′-(1,2-ethynediyl)- or dimethlyene-bridged bis(bipyridine) ligands: Synthesis and photophysical and electrochemical properties

Minki Kim; Chang Hoon Kang; Subong Hong; Won Yong Lee; Byeong Hyo Kim

doi:10.1016/j.ica.2012.10.028

Electrochemiluminescent dinuclear Ru(II) complexes assembled with 1,1′-(1,2-ethynediyl)- or dimethlyene-bridged bis(bipyridine) ligands: Synthesis and photophysical and electrochemical properties

Minki Kim, Chang Hoon Kang, Subong Hong, Won Yong Lee, Byeong Hyo Kim

Department of Chemistry

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

7 Citations (Scopus)

Abstract

1,2-Di(2,2′-bipyridin-5-yl)ethane (BL1) and 1,2-di(2,2′- bipyridin-5-yl)ethyne (BL2) were synthesized as new bridging ligands and coordinated to (RuL₂(acetone)₂)(PF₆) ₂ for the preparation of various [Ru(L)₂(BL)Ru(L) ₂](PF₆)₄-type dinuclear ruthenium complexes (where BL = BL1, BL2 and L = bpy, o-phen, DTDP). The electrochemical redox potentials, spectroscopic properties, and relative electrochemiluminescence intensity of BL1 and BL2 were characterized and compared to those of well-known tris(1,10-phenanthroline)rutheniun(II) [Ru(o-phen)₃](PF ₆)₂] complex as a reference. Dinuclear Ru(II) complexes containing the conjugated bridging ligand (BL2) showed much more intense electrochemiluminescent responses than dinuclear Ru(II) complexes with the non-conjugated bridging ligand (BL1). Among the complexes with conjugated bridging ligands, [(DTDP)₂Ru(bpy-CC-bpy)Ru(DTDP)₂](PF ₆)₄ exhibited enhanced ECL intensities as high as 3.6 times greater than that of the reference, [Ru(o-phen)₃](PF ₆)₂.

Original language	English
Pages (from-to)	145-150
Number of pages	6
Journal	Inorganica Chimica Acta
Volume	395
DOIs	https://doi.org/10.1016/j.ica.2012.10.028
Publication status	Published - 2013 Jan 30

Bibliographical note

Funding Information:
Financial support from Kwangwoon University in 2012 is acknowledged. The Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education, Science and Technology (2011-0008829), also supported this research.

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/j.ica.2012.10.028

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@article{ffc59fc57aef4770841b7abaecb37514,

title = "Electrochemiluminescent dinuclear Ru(II) complexes assembled with 1,1′-(1,2-ethynediyl)- or dimethlyene-bridged bis(bipyridine) ligands: Synthesis and photophysical and electrochemical properties",

abstract = "1,2-Di(2,2′-bipyridin-5-yl)ethane (BL1) and 1,2-di(2,2′- bipyridin-5-yl)ethyne (BL2) were synthesized as new bridging ligands and coordinated to (RuL2(acetone)2)(PF6) 2 for the preparation of various [Ru(L)2(BL)Ru(L) 2](PF6)4-type dinuclear ruthenium complexes (where BL = BL1, BL2 and L = bpy, o-phen, DTDP). The electrochemical redox potentials, spectroscopic properties, and relative electrochemiluminescence intensity of BL1 and BL2 were characterized and compared to those of well-known tris(1,10-phenanthroline)rutheniun(II) [Ru(o-phen)3](PF 6)2] complex as a reference. Dinuclear Ru(II) complexes containing the conjugated bridging ligand (BL2) showed much more intense electrochemiluminescent responses than dinuclear Ru(II) complexes with the non-conjugated bridging ligand (BL1). Among the complexes with conjugated bridging ligands, [(DTDP)2Ru(bpy-CC-bpy)Ru(DTDP)2](PF 6)4 exhibited enhanced ECL intensities as high as 3.6 times greater than that of the reference, [Ru(o-phen)3](PF 6)2.",

author = "Minki Kim and Kang, {Chang Hoon} and Subong Hong and Lee, {Won Yong} and Kim, {Byeong Hyo}",

note = "Funding Information: Financial support from Kwangwoon University in 2012 is acknowledged. The Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education, Science and Technology (2011-0008829), also supported this research.",

year = "2013",

month = jan,

day = "30",

doi = "10.1016/j.ica.2012.10.028",

language = "English",

volume = "395",

pages = "145--150",

journal = "Inorganica Chimica Acta",

issn = "0020-1693",

publisher = "Elsevier BV",

}

Electrochemiluminescent dinuclear Ru(II) complexes assembled with 1,1′-(1,2-ethynediyl)- or dimethlyene-bridged bis(bipyridine) ligands: Synthesis and photophysical and electrochemical properties. / Kim, Minki; Kang, Chang Hoon; Hong, Subong et al.
In: Inorganica Chimica Acta, Vol. 395, 30.01.2013, p. 145-150.

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

TY - JOUR

T1 - Electrochemiluminescent dinuclear Ru(II) complexes assembled with 1,1′-(1,2-ethynediyl)- or dimethlyene-bridged bis(bipyridine) ligands

T2 - Synthesis and photophysical and electrochemical properties

AU - Kim, Minki

AU - Kang, Chang Hoon

AU - Hong, Subong

AU - Lee, Won Yong

AU - Kim, Byeong Hyo

N1 - Funding Information: Financial support from Kwangwoon University in 2012 is acknowledged. The Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education, Science and Technology (2011-0008829), also supported this research.

PY - 2013/1/30

Y1 - 2013/1/30

N2 - 1,2-Di(2,2′-bipyridin-5-yl)ethane (BL1) and 1,2-di(2,2′- bipyridin-5-yl)ethyne (BL2) were synthesized as new bridging ligands and coordinated to (RuL2(acetone)2)(PF6) 2 for the preparation of various [Ru(L)2(BL)Ru(L) 2](PF6)4-type dinuclear ruthenium complexes (where BL = BL1, BL2 and L = bpy, o-phen, DTDP). The electrochemical redox potentials, spectroscopic properties, and relative electrochemiluminescence intensity of BL1 and BL2 were characterized and compared to those of well-known tris(1,10-phenanthroline)rutheniun(II) [Ru(o-phen)3](PF 6)2] complex as a reference. Dinuclear Ru(II) complexes containing the conjugated bridging ligand (BL2) showed much more intense electrochemiluminescent responses than dinuclear Ru(II) complexes with the non-conjugated bridging ligand (BL1). Among the complexes with conjugated bridging ligands, [(DTDP)2Ru(bpy-CC-bpy)Ru(DTDP)2](PF 6)4 exhibited enhanced ECL intensities as high as 3.6 times greater than that of the reference, [Ru(o-phen)3](PF 6)2.

AB - 1,2-Di(2,2′-bipyridin-5-yl)ethane (BL1) and 1,2-di(2,2′- bipyridin-5-yl)ethyne (BL2) were synthesized as new bridging ligands and coordinated to (RuL2(acetone)2)(PF6) 2 for the preparation of various [Ru(L)2(BL)Ru(L) 2](PF6)4-type dinuclear ruthenium complexes (where BL = BL1, BL2 and L = bpy, o-phen, DTDP). The electrochemical redox potentials, spectroscopic properties, and relative electrochemiluminescence intensity of BL1 and BL2 were characterized and compared to those of well-known tris(1,10-phenanthroline)rutheniun(II) [Ru(o-phen)3](PF 6)2] complex as a reference. Dinuclear Ru(II) complexes containing the conjugated bridging ligand (BL2) showed much more intense electrochemiluminescent responses than dinuclear Ru(II) complexes with the non-conjugated bridging ligand (BL1). Among the complexes with conjugated bridging ligands, [(DTDP)2Ru(bpy-CC-bpy)Ru(DTDP)2](PF 6)4 exhibited enhanced ECL intensities as high as 3.6 times greater than that of the reference, [Ru(o-phen)3](PF 6)2.

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DO - 10.1016/j.ica.2012.10.028

M3 - Article

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SN - 0020-1693

VL - 395

SP - 145

EP - 150

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

ER -

Electrochemiluminescent dinuclear Ru(II) complexes assembled with 1,1′-(1,2-ethynediyl)- or dimethlyene-bridged bis(bipyridine) ligands: Synthesis and photophysical and electrochemical properties

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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