β Scribed by A. Seret; E. Gandin; A. Van De Vorst
No coin nor oath required. For personal study only.
The flash photolysis technique was employed to study the properties of eosin triplet state in aqueous micellar solutions. Increasing the concentration of cetyltrimethylammonium bromide from 1O-6 M to the CMC leads to a dramatic decrease of triplet absorbance and to the appearance of a very fast decay process of triplet state resulting from the formation of dye-rich induced micelles. From the CMC to 10v2 M, the absorbance and the lifetime of triplet state increase progressively.
π SIMILAR VOLUMES
Colloidal solutions of Q-Cd3P2 of different mean particle size were flashed and the changes in optical absorption recorded. An absorption band at long wavelengths in the visible and near-infrared is attributed to surface-trapped holes. A bleaching band close to the onset of absorption is attributed
The flash photolysis of aqueous solutions of rhodizonic and croconic acids has been studied in the presence and absence of electron acceptors. No transient absorption which could be identified with an excited state was observed with either anion. The rate of recovery of the ground state in the absen
## Abstract Chloranil (2,3,5,6βtetrachloroβ2,5βcyclohexadieneβ1,4βdione; **C**) in deoxygenated acetonitrile shows transient absorptions which are assigned to the radical anion \documentclass{article}\pagestyle{empty}\begin{document}$ \rm {C}^{- \kern-4pt {.}} $\end{document} and to the triplet ^3^
Flash photolysis of ethereal solutions of sodium results in the almost complete disappearance of the orfgind absorption b.and at 15000 cm-I and in the formation of solvated electrons. After the flash an intermediate with an absorption maximum at 12000 cm-l is formed. This absorption is assigned to a
Flash photolysis of ammonia in the presence of oxygen UTIS studied using the intmcwity Iaser spectroscopy technique. The reaction NH2 + 02 was demonstrated to be of no importance and a value of k6 < 1.5 X 10-t' cm3/molecule s was estimated-Accelerating NH~ decay with oxygen addition is due to :he re