Electrochromism in the near-infrared absorption spectra of bridged ruthenium mixed-valence complexes

Journal Article · Wed Oct 24 04:00:00 EDT 1990 · Journal of the American Chemical Society; (USA)

DOI:https://doi.org/10.1021/ja00178a047· OSTI ID:6332786

Oh, D H; Boxer, S G ^[1]

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1. Stanford Univ., CA (USA)

Many experimental and theoretical approaches have been developed to characterize the chemical and physical properties of mixed-valence complexes. These molecules may possess metals in differing oxidation states which participate in intervalence charge-transfer transitions. In principle, these transitions should be strongly affected by an external electric field. Such electrochromism can provide a direct and sensitive approach to investigating the electronic properties of molecules. The authors report the first measurements of the effects of an externally applied electric field on the near-infrared absorption spectra of ((NH{sub 3}){sub 5}Ru){sub 2}L{sup 5+} (L = pyrazine or 4,4{prime}-bipyridine). Significant differences are observed between the two complexes, illustrating the range of electronic interactions between the metal centers.

• OSTI ID: 6332786
• Journal Information: Journal of the American Chemical Society; (USA), Journal Name: Journal of the American Chemical Society; (USA) Vol. 112:22; ISSN 0002-7863; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
ABSORPTION SPECTRA
COMPLEXES
DATA
ELECTRIC FIELDS
ELECTRO-OPTICAL EFFECTS
ELECTROCHROMISM
ELECTROMAGNETIC RADIATION
EXPERIMENTAL DATA
INFORMATION
INFRARED RADIATION
LOW TEMPERATURE
MEASURING METHODS
NEAR INFRARED RADIATION
NUMERICAL DATA
RADIATIONS
RUTHENIUM COMPLEXES
SPECTRA
TRANSITION ELEMENT COMPLEXES