Enhanced electrochemiluminescence from a stoichiometric ruthenium(II)-iridium(III) complex soft salt

Kalen N. Swanick; Martina Sandroni; Zhifeng  Ding; Eli Zysman-Colman

doi:10.1002/chem.201406533

Enhanced electrochemiluminescence from a stoichiometric ruthenium(II)-iridium(III) complex soft salt

Kalen N. Swanick, Martina Sandroni, Zhifeng Ding, Eli Zysman-Colman

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

Abstract

Electrochemiluminescence (ECL) and electrochemistry are reported for a heterometallic soft salt, [Ru(dtbubpy)3][Ir(ppy)₂(CN)₂]₂ ([Ir][Ru][Ir]), consisting of a 2:1 ratio of complementary charged Ru and Ir complexes possessing two different emission colors. The [Ru]²⁺ and [Ir]⁻ moieties in the [Ir][Ru][Ir] greatly reduce the energy required to produce ECL. Though ECL intensity in the annihilation path was enhanced 18× relative to that of [Ru(bpy)3]²⁺, ECL in the co-reactant path with tri-n-propylamine was enhanced a further 4×. Spooling spectroscopy gives insight into ECL mechanisms: the unique light emission at 634 nm is due to the [Ru]²⁺* excited state and no [Ir]⁻* was generated in either route. Overall, the soft salt system is anticipated to be attractive and suitable for the development of efficient and low-energy-cost ECL detection systems.

Original language	English
Pages (from-to)	7435-7440
Journal	Chemistry - A European Journal
Volume	21
Issue number	20
Early online date	3 Mar 2015
DOIs	https://doi.org/10.1002/chem.201406533
Publication status	Published - 11 May 2015

Keywords

Electrochemiluminescence
Iridium
Ruthenium
Soft salt
tri-n-propylamine

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10.1002/chem.201406533

Chem Eur J EZC4
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the accepted version of the following article: Swanick, K. N., Sandroni, M., Ding, Z. and Zysman-Colman, E. (2015), Enhanced Electrochemiluminescence from a Stoichiometric Ruthenium(II)–Iridium(III) Complex Soft Salt. Chem. Eur. J., which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/chem.201406533/abstract
Accepted author manuscript, 1.44 MB

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title = "Enhanced electrochemiluminescence from a stoichiometric ruthenium(II)-iridium(III) complex soft salt",

abstract = "Electrochemiluminescence (ECL) and electrochemistry are reported for a heterometallic soft salt, [Ru(dtbubpy)3][Ir(ppy)2(CN)2]2 ([Ir][Ru][Ir]), consisting of a 2:1 ratio of complementary charged Ru and Ir complexes possessing two different emission colors. The [Ru]2+ and [Ir]− moieties in the [Ir][Ru][Ir] greatly reduce the energy required to produce ECL. Though ECL intensity in the annihilation path was enhanced 18× relative to that of [Ru(bpy)3]2+, ECL in the co-reactant path with tri-n-propylamine was enhanced a further 4×. Spooling spectroscopy gives insight into ECL mechanisms: the unique light emission at 634 nm is due to the [Ru]2+* excited state and no [Ir]−* was generated in either route. Overall, the soft salt system is anticipated to be attractive and suitable for the development of efficient and low-energy-cost ECL detection systems.",

keywords = "Electrochemiluminescence, Iridium, Ruthenium, Soft salt, tri-n-propylamine",

author = "Swanick, {Kalen N.} and Martina Sandroni and Zhifeng Ding and Eli Zysman-Colman",

note = "The authors thank NSERC, CFI, FQRNT, PREA, and The University of Western Ontario for generous financial support to this research. ",

year = "2015",

month = may,

day = "11",

doi = "10.1002/chem.201406533",

language = "English",

volume = "21",

pages = "7435--7440",

journal = "Chemistry - A European Journal",

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TY - JOUR

T1 - Enhanced electrochemiluminescence from a stoichiometric ruthenium(II)-iridium(III) complex soft salt

AU - Swanick, Kalen N.

AU - Sandroni, Martina

AU - Ding, Zhifeng

AU - Zysman-Colman, Eli

N1 - The authors thank NSERC, CFI, FQRNT, PREA, and The University of Western Ontario for generous financial support to this research.

PY - 2015/5/11

Y1 - 2015/5/11

N2 - Electrochemiluminescence (ECL) and electrochemistry are reported for a heterometallic soft salt, [Ru(dtbubpy)3][Ir(ppy)2(CN)2]2 ([Ir][Ru][Ir]), consisting of a 2:1 ratio of complementary charged Ru and Ir complexes possessing two different emission colors. The [Ru]2+ and [Ir]− moieties in the [Ir][Ru][Ir] greatly reduce the energy required to produce ECL. Though ECL intensity in the annihilation path was enhanced 18× relative to that of [Ru(bpy)3]2+, ECL in the co-reactant path with tri-n-propylamine was enhanced a further 4×. Spooling spectroscopy gives insight into ECL mechanisms: the unique light emission at 634 nm is due to the [Ru]2+* excited state and no [Ir]−* was generated in either route. Overall, the soft salt system is anticipated to be attractive and suitable for the development of efficient and low-energy-cost ECL detection systems.

AB - Electrochemiluminescence (ECL) and electrochemistry are reported for a heterometallic soft salt, [Ru(dtbubpy)3][Ir(ppy)2(CN)2]2 ([Ir][Ru][Ir]), consisting of a 2:1 ratio of complementary charged Ru and Ir complexes possessing two different emission colors. The [Ru]2+ and [Ir]− moieties in the [Ir][Ru][Ir] greatly reduce the energy required to produce ECL. Though ECL intensity in the annihilation path was enhanced 18× relative to that of [Ru(bpy)3]2+, ECL in the co-reactant path with tri-n-propylamine was enhanced a further 4×. Spooling spectroscopy gives insight into ECL mechanisms: the unique light emission at 634 nm is due to the [Ru]2+* excited state and no [Ir]−* was generated in either route. Overall, the soft salt system is anticipated to be attractive and suitable for the development of efficient and low-energy-cost ECL detection systems.

KW - Electrochemiluminescence

KW - Iridium

KW - Ruthenium

KW - Soft salt

KW - tri-n-propylamine

UR - http://onlinelibrary.wiley.com/doi/10.1002/chem.201406533/suppinfo

U2 - 10.1002/chem.201406533

DO - 10.1002/chem.201406533

M3 - Article

SN - 0947-6539

VL - 21

SP - 7435

EP - 7440

JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

IS - 20

ER -

Enhanced electrochemiluminescence from a stoichiometric ruthenium(II)-iridium(III) complex soft salt

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