RESEARCH ON TRIPLET STATES AND PHOTOCHROMISM.
Semi-annual research rept. no. 1, 1 Dec 61-31 May 62,
TRW SPACE TECHNOLOGY LABS REDONDO BEACH CALIF
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A flash photolysis apparatus with spectrographic recording was assembled. Using carefully degassed solutions, T-T absorption spectra have been recorded for several compounds out as far as 9000A. Several new bands in the near infra-red were discovered. Available data on spectra, extinction coefficients and lifetimes were collected from the literature and tabulated. Several compounds were investigated for phosphorescence activity in organic glasses at liquid nitrogen temperatures. A technique was developed for preparing optical quality plastic samples in which triplet state compounds are incorporated. The plastic samples can be machine to desired shapes and polished to optical standards. A theoretical study of radiationless transitions in complex molecules commenced. Application of the theory in a very elementary form yields the correct relative rates for the three most important intramolecular energy transfer processes in complex molecules. Author
- Radiation and Nuclear Chemistry
- Protective Equipment