Effects of environment of the activated nonradiative decay of the /sup 3/A/sub 2/ state of Rh/sub 2/(TMB)/sub 4//sup 2 +/
Journal Article
·
· Inorg. Chem.; (United States)
The effect of environment on the temperature dependence of the nonradiative decay of the /sup 3/A/sup 2/ state of Rh/sub 2/(TMB)/sub 4//sup 2 +/ (TMB = 2,5-dimethyl-2,5-diisocyanohexane) is studied. The temperature dependence of the observed nonradiative decay rate can be approximately fit to an Arrhenius-like expression: k/sub obsd/ = k/sub 0/ + Ae/sup -E/sub a//RT/. Arrhenius parameters are obtained in seven different environments, with the activation energies varying from 1970 to 3420 cm/sup -1/. A plot of 1n A vs. E/sub a/, known as a Barclay-Butler plot, is linear, with slope = 3.3 x 10/sup -3/ cm and y intercept = 20.0. The linear Barclay-Butler plot suggests that the activated decay from the /sup 3/A/sub 2/ state of Rh/sub 2/(TMB)/sub 4//sup 2 +/ has the same mechanism, regardless of environment. Single-crystal, dilute-plastic, and dilute-crystal environments have been tested. 13 references, 4 figures.
- Research Organization:
- Univ. of California, Santa Cruz
- OSTI ID:
- 5953286
- Journal Information:
- Inorg. Chem.; (United States), Journal Name: Inorg. Chem.; (United States) Vol. 24:21; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ABSORPTION SPECTROSCOPY
ACTIVATION ENERGY
ALKANES
ARRHENIUS EQUATION
COMPLEXES
CRYSTALS
DATA
DE-EXCITATION
ENERGY
ENERGY LEVELS
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
EQUATIONS
EXCITED STATES
EXPERIMENTAL DATA
HEXANE
HYDROCARBONS
INFORMATION
KINETICS
LOW TEMPERATURE
MEDIUM TEMPERATURE
MONOCRYSTALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
POLYMERS
RADIATIONLESS DECAY
REACTION KINETICS
RHODIUM COMPLEXES
SPECTRA
SPECTROSCOPY
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPLEXES
VISIBLE SPECTRA
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ABSORPTION SPECTROSCOPY
ACTIVATION ENERGY
ALKANES
ARRHENIUS EQUATION
COMPLEXES
CRYSTALS
DATA
DE-EXCITATION
ENERGY
ENERGY LEVELS
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
EQUATIONS
EXCITED STATES
EXPERIMENTAL DATA
HEXANE
HYDROCARBONS
INFORMATION
KINETICS
LOW TEMPERATURE
MEDIUM TEMPERATURE
MONOCRYSTALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
POLYMERS
RADIATIONLESS DECAY
REACTION KINETICS
RHODIUM COMPLEXES
SPECTRA
SPECTROSCOPY
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPLEXES
VISIBLE SPECTRA