Solvent dependent photophysics of fac-[Re(CO)3(11,12-X 2dppz)(py)]+ (X = H, F or Me)

Joanne Dyer, Caitriona M. Creely, J. Carlos Penedo, David Grills, Sarah Hudson, Pavel Matousek, Anthony W. Parker, Michael Towrie, John M. Kelly, Michael W. George

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

The photophysical properties of [Re(CO)3(dppz)(py)]+ (dppz = dipyrido-[3,2-a:2′,3′-c] phenazine) (1) and its 11,12 substituted derivatives [Re(CO)3(dppzMe2)(py)]+ (2) and [Re(CO)3(dppzF2)(py)]+ (3) have been examined in organic and aqueous environments using phosphorescence and picosecond transient visible and infrared absorption spectroscopic methods. The roles of the intraligand IL(π-π*) and metal-to-ligand charge transfer MLCT(phz) excited states are evaluated and used to explain the major effect of difluoro-substitution, which is particularly remarkable in water, where the excited state of [Re(CO)3(dppzF2)(py)] + (3) is strongly quenched.

Original languageEnglish
Pages (from-to)741-748
Number of pages8
JournalPhotochemical and Photobiological Sciences
Volume6
Issue number7
DOIs
Publication statusPublished - 2007

Fingerprint

Carbon Monoxide
phosphorescence
Excited states
infrared absorption
excitation
charge transfer
substitutes
Phosphorescence
ligands
Infrared absorption
metals
water
Charge transfer
Substitution reactions
Metals
Ligands
Derivatives
Water

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Cell Biology
  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry
  • Biophysics

Cite this

Solvent dependent photophysics of fac-[Re(CO)3(11,12-X 2dppz)(py)]+ (X = H, F or Me). / Dyer, Joanne; Creely, Caitriona M.; Penedo, J. Carlos; Grills, David; Hudson, Sarah; Matousek, Pavel; Parker, Anthony W.; Towrie, Michael; Kelly, John M.; George, Michael W.

In: Photochemical and Photobiological Sciences, Vol. 6, No. 7, 2007, p. 741-748.

Research output: Contribution to journalArticle

Dyer, J, Creely, CM, Penedo, JC, Grills, D, Hudson, S, Matousek, P, Parker, AW, Towrie, M, Kelly, JM & George, MW 2007, 'Solvent dependent photophysics of fac-[Re(CO)3(11,12-X 2dppz)(py)]+ (X = H, F or Me)', Photochemical and Photobiological Sciences, vol. 6, no. 7, pp. 741-748. https://doi.org/10.1039/b618651c
Dyer, Joanne ; Creely, Caitriona M. ; Penedo, J. Carlos ; Grills, David ; Hudson, Sarah ; Matousek, Pavel ; Parker, Anthony W. ; Towrie, Michael ; Kelly, John M. ; George, Michael W. / Solvent dependent photophysics of fac-[Re(CO)3(11,12-X 2dppz)(py)]+ (X = H, F or Me). In: Photochemical and Photobiological Sciences. 2007 ; Vol. 6, No. 7. pp. 741-748.
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