Resonance Raman and lifetime studies on regioselectively deuteriated ruthenium(II) polypyridyl complexes

Wesley R. Browne; William Henry; Paolo Passaniti; Maria Teresa Gandolfi; Roberto Ballardini; Christine M. O’Connor; Clare Brady; Colin G. Coates; Johannes G. Vos; John J. McGarvey

doi:10.1039/b613471h

Resonance Raman and lifetime studies on regioselectively deuteriated ruthenium(II) polypyridyl complexes

Wesley R. Browne, William Henry, Paolo Passaniti, Maria Teresa Gandolfi, Roberto Ballardini, Christine M. O’Connor, Clare Brady, Colin G. Coates, Johannes G. Vos, John J. McGarvey

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

Abstract

Two series of ruthenium(II) polypyridyl complexes [Ru(bipy)₂(phpytr)]⁺ and [Ru(bipy)₂(phpztr)]⁺ (where Hphpytr = 2-(5-phenyl-1H-[1,2,4]triazol-3-yl)-pyridine and Hphpztr = 2-(5-phenyl-1H-[1,2,4]triazol-3-yl)-pyrazine) are examined by electrochemistry, UV/Vis, emission, resonance Raman, transient resonance Raman and transient absorption spectroscopy, in order to obtain a more comprehensive understanding of their excited state electronic properties. The interpretation of the results obtained is facilitated by the availability of several isotopologues of each of the complexes examined. For the pyridine-1,2,4-triazolato based complex the lowest emissive excited state is exclusively bipy based, however, for the pyrazine based complexes excited state localisation on particular ligands shows considerable solvent and pH dependency.

Original language	English
Pages (from-to)	386-396
Number of pages	11
Journal	Photochemical and Photobiological Sciences
Volume	6
Issue number	4
DOIs	https://doi.org/10.1039/b613471h
Publication status	Published - 2 Apr 2007

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@article{583d6e010add472bb43c8c662b1f3667,

title = "Resonance Raman and lifetime studies on regioselectively deuteriated ruthenium(II) polypyridyl complexes",

abstract = "Two series of ruthenium(II) polypyridyl complexes [Ru(bipy)2(phpytr)]+ and [Ru(bipy)2(phpztr)]+ (where Hphpytr = 2-(5-phenyl-1H-[1,2,4]triazol-3-yl)-pyridine and Hphpztr = 2-(5-phenyl-1H-[1,2,4]triazol-3-yl)-pyrazine) are examined by electrochemistry, UV/Vis, emission, resonance Raman, transient resonance Raman and transient absorption spectroscopy, in order to obtain a more comprehensive understanding of their excited state electronic properties. The interpretation of the results obtained is facilitated by the availability of several isotopologues of each of the complexes examined. For the pyridine-1,2,4-triazolato based complex the lowest emissive excited state is exclusively bipy based, however, for the pyrazine based complexes excited state localisation on particular ligands shows considerable solvent and pH dependency.",

author = "Browne, \{Wesley R.\} and William Henry and Paolo Passaniti and Gandolfi, \{Maria Teresa\} and Roberto Ballardini and O{\textquoteright}Connor, \{Christine M.\} and Clare Brady and Coates, \{Colin G.\} and Vos, \{Johannes G.\} and McGarvey, \{John J.\}",

year = "2007",

month = apr,

day = "2",

doi = "10.1039/b613471h",

language = "English",

volume = "6",

pages = "386--396",

journal = "Photochemical and Photobiological Sciences",

issn = "1474-905X",

publisher = "Springer Nature",

number = "4",

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TY - JOUR

T1 - Resonance Raman and lifetime studies on regioselectively deuteriated ruthenium(II) polypyridyl complexes

AU - Browne, Wesley R.

AU - Henry, William

AU - Passaniti, Paolo

AU - Gandolfi, Maria Teresa

AU - Ballardini, Roberto

AU - O’Connor, Christine M.

AU - Brady, Clare

AU - Coates, Colin G.

AU - Vos, Johannes G.

AU - McGarvey, John J.

PY - 2007/4/2

Y1 - 2007/4/2

N2 - Two series of ruthenium(II) polypyridyl complexes [Ru(bipy)2(phpytr)]+ and [Ru(bipy)2(phpztr)]+ (where Hphpytr = 2-(5-phenyl-1H-[1,2,4]triazol-3-yl)-pyridine and Hphpztr = 2-(5-phenyl-1H-[1,2,4]triazol-3-yl)-pyrazine) are examined by electrochemistry, UV/Vis, emission, resonance Raman, transient resonance Raman and transient absorption spectroscopy, in order to obtain a more comprehensive understanding of their excited state electronic properties. The interpretation of the results obtained is facilitated by the availability of several isotopologues of each of the complexes examined. For the pyridine-1,2,4-triazolato based complex the lowest emissive excited state is exclusively bipy based, however, for the pyrazine based complexes excited state localisation on particular ligands shows considerable solvent and pH dependency.

AB - Two series of ruthenium(II) polypyridyl complexes [Ru(bipy)2(phpytr)]+ and [Ru(bipy)2(phpztr)]+ (where Hphpytr = 2-(5-phenyl-1H-[1,2,4]triazol-3-yl)-pyridine and Hphpztr = 2-(5-phenyl-1H-[1,2,4]triazol-3-yl)-pyrazine) are examined by electrochemistry, UV/Vis, emission, resonance Raman, transient resonance Raman and transient absorption spectroscopy, in order to obtain a more comprehensive understanding of their excited state electronic properties. The interpretation of the results obtained is facilitated by the availability of several isotopologues of each of the complexes examined. For the pyridine-1,2,4-triazolato based complex the lowest emissive excited state is exclusively bipy based, however, for the pyrazine based complexes excited state localisation on particular ligands shows considerable solvent and pH dependency.

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DO - 10.1039/b613471h

M3 - Article

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AN - SCOPUS:34047236548

SN - 1474-905X

VL - 6

SP - 386

EP - 396

JO - Photochemical and Photobiological Sciences

JF - Photochemical and Photobiological Sciences

IS - 4

ER -

Resonance Raman and lifetime studies on regioselectively deuteriated ruthenium(II) polypyridyl complexes

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