Mid-Infrared Spectrum of [Ru(phen)(3)](2+)

Mid-Infrared Spectrum of [Ru(phen)(3)](2+)

Time-resolved infrared spectra in the fingerprint region (1300-1700 cm(-)(1)) are reported for the metal-to-ligand charge-transfer (MLCT) excited state(s) of [Ru(phen)(3)](2+) and [Os(phen)(DAS)(2)](2+) (phen is 1,10-phenanthroline; DAS is 1,2-bis(diphenylarsino)ethane) in acetonitrile-d(3) at 298 K...

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Veröffentlicht in:Inorganic chemistry 1998-07, Vol.37 (14), p.3505-3508
Hauptverfasser: Omberg, Kristin M., Schoonover, Jon R., Bernhard, Stefan, Moss, John A., Treadway, Joseph A., Kober, Edward M., Dyer, R. Brian, Meyer, Thomas J.
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container_end_page 3508
container_issue 14
container_start_page 3505
container_title Inorganic chemistry
container_volume 37
creator Omberg, Kristin M.
Schoonover, Jon R.
Bernhard, Stefan
Moss, John A.
Treadway, Joseph A.
Kober, Edward M.
Dyer, R. Brian
Meyer, Thomas J.
description Time-resolved infrared spectra in the fingerprint region (1300-1700 cm(-)(1)) are reported for the metal-to-ligand charge-transfer (MLCT) excited state(s) of [Ru(phen)(3)](2+) and [Os(phen)(DAS)(2)](2+) (phen is 1,10-phenanthroline; DAS is 1,2-bis(diphenylarsino)ethane) in acetonitrile-d(3) at 298 K. The spectra are assigned by comparison to electrochemically generated [Ru(III)(phen)(3)](3+) and [Ru(II)(phen(*)(-)())(phen)(2)](+). The data provide clear evidence for the localized description [Ru(III)(phen(*)(-)())(phen)(2)](2+) on the approximately 100 ns time scale. They also give insight into electronic distribution in the excited state, aid in the interpretation of the time-resolved resonance Raman spectrum of [Ru(phen)(3)](2+), and suggest why measuring ground- and excited-state resonance Raman spectra of phen complexes is difficult.
doi_str_mv 10.1021/ic971554e
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title Mid-Infrared Spectrum of [Ru(phen)(3)](2+)
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