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    Rights statement: This is the peer reviewed version of the following article: Brown, R. T., Fletcher, N. C., Danos, L. and Halcovitch, N. R. (2019), A Tripodal Ruthenium(II) Polypyridyl Complex with pH Controlled Emissive Quenching. Eur. J. Inorg. Chem., 2019: 110-117. doi:10.1002/ejic.201800891 which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/EJIC.201800891 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

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A Tripodal Ruthenium(II) Polypyridyl Complex with pH Controlled Emissive Quenching

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A Tripodal Ruthenium(II) Polypyridyl Complex with pH Controlled Emissive Quenching. / Brown, Rodney T.; Fletcher, Nicholas Charles; Danos, Eleftherios; Halcovitch, Nathan Ross.

In: European Journal of Inorganic Chemistry, Vol. 2019, No. 1, EJIC.201800891, 10.01.2019, p. 110-117.

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Brown, RT, Fletcher, NC, Danos, E & Halcovitch, NR 2019, 'A Tripodal Ruthenium(II) Polypyridyl Complex with pH Controlled Emissive Quenching', European Journal of Inorganic Chemistry, vol. 2019, no. 1, EJIC.201800891, pp. 110-117. https://doi.org/10.1002/ejic.201800891

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@article{fed8722eb9a246bb90d270a8516ca437,
title = "A Tripodal Ruthenium(II) Polypyridyl Complex with pH Controlled Emissive Quenching",
abstract = "A tripodal podand has been prepared and complexed to ruthenium(II) creating a metal complex with C3-symmetry and an enclosed cavity. The complex shows the anticipated enhanced emission when compared to [Ru(bipy)3]2+ in acetonitrile. The emission from this cryptand like structure is invariant to the introduction of monovalent cations in aqueous solution, but a significant drop in the emission was observed with increasing pH over a very broad pH range (3 to 12). This is attributed to an N to t2g electron transfer in the excited-state in the unprotonated form with a transfer rate of the order of 4.2 x 105 s-1. The crystal structure indicates the inclusion of water within the cavity suggesting that the protonation of a tertiary amine can be effectively moderated by a water molecule held in close proximity within a rigid cavity",
keywords = "Bipyridine, pH Sensor, Podand, Ruthenium, Tripodal ligands",
author = "Brown, {Rodney T.} and Fletcher, {Nicholas Charles} and Eleftherios Danos and Halcovitch, {Nathan Ross}",
note = "This is the peer reviewed version of the following article: Brown, R. T., Fletcher, N. C., Danos, L. and Halcovitch, N. R. (2019), A Tripodal Ruthenium(II) Polypyridyl Complex with pH Controlled Emissive Quenching. Eur. J. Inorg. Chem., 2019: 110-117. doi:10.1002/ejic.201800891 which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/EJIC.201800891 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.",
year = "2019",
month = "1",
day = "10",
doi = "10.1002/ejic.201800891",
language = "English",
volume = "2019",
pages = "110--117",
journal = "European Journal of Inorganic Chemistry",
issn = "1434-1948",
publisher = "Wiley-VCH Verlag",
number = "1",

}

RIS

TY - JOUR

T1 - A Tripodal Ruthenium(II) Polypyridyl Complex with pH Controlled Emissive Quenching

AU - Brown, Rodney T.

AU - Fletcher, Nicholas Charles

AU - Danos, Eleftherios

AU - Halcovitch, Nathan Ross

N1 - This is the peer reviewed version of the following article: Brown, R. T., Fletcher, N. C., Danos, L. and Halcovitch, N. R. (2019), A Tripodal Ruthenium(II) Polypyridyl Complex with pH Controlled Emissive Quenching. Eur. J. Inorg. Chem., 2019: 110-117. doi:10.1002/ejic.201800891 which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/EJIC.201800891 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

PY - 2019/1/10

Y1 - 2019/1/10

N2 - A tripodal podand has been prepared and complexed to ruthenium(II) creating a metal complex with C3-symmetry and an enclosed cavity. The complex shows the anticipated enhanced emission when compared to [Ru(bipy)3]2+ in acetonitrile. The emission from this cryptand like structure is invariant to the introduction of monovalent cations in aqueous solution, but a significant drop in the emission was observed with increasing pH over a very broad pH range (3 to 12). This is attributed to an N to t2g electron transfer in the excited-state in the unprotonated form with a transfer rate of the order of 4.2 x 105 s-1. The crystal structure indicates the inclusion of water within the cavity suggesting that the protonation of a tertiary amine can be effectively moderated by a water molecule held in close proximity within a rigid cavity

AB - A tripodal podand has been prepared and complexed to ruthenium(II) creating a metal complex with C3-symmetry and an enclosed cavity. The complex shows the anticipated enhanced emission when compared to [Ru(bipy)3]2+ in acetonitrile. The emission from this cryptand like structure is invariant to the introduction of monovalent cations in aqueous solution, but a significant drop in the emission was observed with increasing pH over a very broad pH range (3 to 12). This is attributed to an N to t2g electron transfer in the excited-state in the unprotonated form with a transfer rate of the order of 4.2 x 105 s-1. The crystal structure indicates the inclusion of water within the cavity suggesting that the protonation of a tertiary amine can be effectively moderated by a water molecule held in close proximity within a rigid cavity

KW - Bipyridine

KW - pH Sensor

KW - Podand

KW - Ruthenium

KW - Tripodal ligands

U2 - 10.1002/ejic.201800891

DO - 10.1002/ejic.201800891

M3 - Journal article

VL - 2019

SP - 110

EP - 117

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

SN - 1434-1948

IS - 1

M1 - EJIC.201800891

ER -