Time-resolved emission spectra of Ru(bpy)/sub 3/Cl/sub 2/ and cis-Ru(bpy)/sub 2/(CN)/sub 2/ at low temperature

Journal Article · Wed Apr 09 23:00:00 EST 1986 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100399a002· OSTI ID:5815576

Kitamura, N; Kim, H B; Kawanishi, Y; Obata, R; Tazuke, S

Time-resolved emission spectroscopy of Ru(bpy)/sub 3/Cl/sub 2/ and cis-Ru(bpy)/sub 2/(CN)/sub 2/, where bpy is 2,2'-bipyridine, was conducted in an ethanol-methanol mixture above 80 K. The emission spectra of both complexes shifted to the red with increasing temperatures (>80 K) as well as with the delay time after excitation (110-150 K). The apparent activation energies for the time-dependent red shift of the emission (110-130 K) were calculated to be 570 and 1360 cm/sup -1/ for Ru(bpy)/sub 3/Cl/sub 2/ and cis-Ru(bpy)/sub 2/(CN)/sub 2/, respectively. It was concluded that charge localization in the excited state was not an intrinsic property of the complex but was induced by solvent relaxation processes. 17 references, 4 figures, 1 table.

• Research Organization: Tokyo Institute of Technology, Japan
• OSTI ID: 5815576
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 90:8; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140505 -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
400400 -- Electrochemistry
ACTIVATION ENERGY
ALCOHOLS
AZINES
BIPYRIDINES
CHLORIDES
CHLORINE COMPOUNDS
COMPLEXES
CYANIDES
DATA
EMISSION SPECTROSCOPY
ENERGY
ETHANOL
EXPERIMENTAL DATA
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
LOW TEMPERATURE
METHANOL
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIDINES
RUTHENIUM COMPLEXES
SPECTROSCOPY
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPLEXES