Ground- and excited-state electronic structure of an emissive pyrazine-bridged ruthenium(II) dinuclear complex

Wesley R. Browne; Noel M. O'Boyle; William Henry; Adrian L. Guckian; Sabine Horn; Thomas Fett; Christine M. O'Connor; Marco Duati; Luisa De Cola; Colin G. Coates; Kate L. Ronayne; John J. McGarvey; Johannes G. Vos

doi:10.1021/ja046034e

Ground- and excited-state electronic structure of an emissive pyrazine-bridged ruthenium(II) dinuclear complex

Wesley R. Browne
, Noel M. O'Boyle
, William Henry
, Adrian L. Guckian
, Sabine Horn
, Thomas Fett
, Christine M. O'Connor
, Marco Duati
, Luisa De Cola
, Colin G. Coates
, Kate L. Ronayne
, John J. McGarvey
, Johannes G. Vos

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

Abstract

The synthesis, characterization, and electrochemical, photophysical, and photochemical properties of the binuclear compounds [(Ru(H₈-bpy) ₂)₂((Metr)₂Pz)](PF₆)₂ (1) and [(Ru(D₈-bpy)₂)₂((Metr)₂Pz)] (PF₆)₂ (2), where bpy is 2,2′-bipyridine and H ₂(Metr)₂Pz is the planar ligand 2,5-bis(5′-methyl- 4′H-[1,2,4]triaz-3′-yl)-pyrazine, are reported. Electrochemical and spectro-electrochemical investigations indicate that the ground-state interaction between each metal center is predominantly electrostatic and in the mixed-valence form only a low level of ground-state delocalization is present. Resonance Raman, transient, and time-resolved spectroscopies enable a detailed assignment to be made of the excited-state photophysical properties of the complexes. Deuteriation is employed to both facilitate spectroscopic characterization and investigate the nature of the lowest excited states.

Original language	English
Pages (from-to)	1229-1241
Number of pages	13
Journal	Journal of the American Chemical Society
Volume	127
Issue number	4
DOIs	https://doi.org/10.1021/ja046034e
Publication status	Published - 2 Feb 2005

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10.1021/ja046034e

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Browne, W. R., O'Boyle, N. M., Henry, W., Guckian, A. L., Horn, S., Fett, T., O'Connor, C. M., Duati, M., De Cola, L., Coates, C. G., Ronayne, K. L., McGarvey, J. J., & Vos, J. G. (2005). Ground- and excited-state electronic structure of an emissive pyrazine-bridged ruthenium(II) dinuclear complex. Journal of the American Chemical Society, 127(4), 1229-1241. https://doi.org/10.1021/ja046034e

@article{52a0253159fc450981a0b1fed9ee604d,

title = "Ground- and excited-state electronic structure of an emissive pyrazine-bridged ruthenium(II) dinuclear complex",

abstract = "The synthesis, characterization, and electrochemical, photophysical, and photochemical properties of the binuclear compounds [(Ru(H8-bpy) 2)2((Metr)2Pz)](PF6)2 (1) and [(Ru(D8-bpy)2)2((Metr)2Pz)] (PF6)2 (2), where bpy is 2,2′-bipyridine and H 2(Metr)2Pz is the planar ligand 2,5-bis(5′-methyl- 4′H-[1,2,4]triaz-3′-yl)-pyrazine, are reported. Electrochemical and spectro-electrochemical investigations indicate that the ground-state interaction between each metal center is predominantly electrostatic and in the mixed-valence form only a low level of ground-state delocalization is present. Resonance Raman, transient, and time-resolved spectroscopies enable a detailed assignment to be made of the excited-state photophysical properties of the complexes. Deuteriation is employed to both facilitate spectroscopic characterization and investigate the nature of the lowest excited states.",

author = "Browne, \{Wesley R.\} and O'Boyle, \{Noel M.\} and William Henry and Guckian, \{Adrian L.\} and Sabine Horn and Thomas Fett and O'Connor, \{Christine M.\} and Marco Duati and \{De Cola\}, Luisa and Coates, \{Colin G.\} and Ronayne, \{Kate L.\} and McGarvey, \{John J.\} and Vos, \{Johannes G.\}",

year = "2005",

month = feb,

day = "2",

doi = "10.1021/ja046034e",

language = "English",

volume = "127",

pages = "1229--1241",

journal = "Journal of the American Chemical Society",

issn = "0002-7863",

publisher = "American Chemical Society",

number = "4",

}

Browne, WR, O'Boyle, NM, Henry, W, Guckian, AL, Horn, S, Fett, T, O'Connor, CM, Duati, M, De Cola, L, Coates, CG, Ronayne, KL, McGarvey, JJ & Vos, JG 2005, 'Ground- and excited-state electronic structure of an emissive pyrazine-bridged ruthenium(II) dinuclear complex', Journal of the American Chemical Society, vol. 127, no. 4, pp. 1229-1241. https://doi.org/10.1021/ja046034e

TY - JOUR

T1 - Ground- and excited-state electronic structure of an emissive pyrazine-bridged ruthenium(II) dinuclear complex

AU - Browne, Wesley R.

AU - O'Boyle, Noel M.

AU - Henry, William

AU - Guckian, Adrian L.

AU - Horn, Sabine

AU - Fett, Thomas

AU - O'Connor, Christine M.

AU - Duati, Marco

AU - De Cola, Luisa

AU - Coates, Colin G.

AU - Ronayne, Kate L.

AU - McGarvey, John J.

AU - Vos, Johannes G.

PY - 2005/2/2

Y1 - 2005/2/2

N2 - The synthesis, characterization, and electrochemical, photophysical, and photochemical properties of the binuclear compounds [(Ru(H8-bpy) 2)2((Metr)2Pz)](PF6)2 (1) and [(Ru(D8-bpy)2)2((Metr)2Pz)] (PF6)2 (2), where bpy is 2,2′-bipyridine and H 2(Metr)2Pz is the planar ligand 2,5-bis(5′-methyl- 4′H-[1,2,4]triaz-3′-yl)-pyrazine, are reported. Electrochemical and spectro-electrochemical investigations indicate that the ground-state interaction between each metal center is predominantly electrostatic and in the mixed-valence form only a low level of ground-state delocalization is present. Resonance Raman, transient, and time-resolved spectroscopies enable a detailed assignment to be made of the excited-state photophysical properties of the complexes. Deuteriation is employed to both facilitate spectroscopic characterization and investigate the nature of the lowest excited states.

AB - The synthesis, characterization, and electrochemical, photophysical, and photochemical properties of the binuclear compounds [(Ru(H8-bpy) 2)2((Metr)2Pz)](PF6)2 (1) and [(Ru(D8-bpy)2)2((Metr)2Pz)] (PF6)2 (2), where bpy is 2,2′-bipyridine and H 2(Metr)2Pz is the planar ligand 2,5-bis(5′-methyl- 4′H-[1,2,4]triaz-3′-yl)-pyrazine, are reported. Electrochemical and spectro-electrochemical investigations indicate that the ground-state interaction between each metal center is predominantly electrostatic and in the mixed-valence form only a low level of ground-state delocalization is present. Resonance Raman, transient, and time-resolved spectroscopies enable a detailed assignment to be made of the excited-state photophysical properties of the complexes. Deuteriation is employed to both facilitate spectroscopic characterization and investigate the nature of the lowest excited states.

UR - https://www.scopus.com/pages/publications/13644262203

U2 - 10.1021/ja046034e

DO - 10.1021/ja046034e

M3 - Article

AN - SCOPUS:13644262203

SN - 0002-7863

VL - 127

SP - 1229

EP - 1241

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 4

ER -

Ground- and excited-state electronic structure of an emissive pyrazine-bridged ruthenium(II) dinuclear complex

Abstract

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