Chlorophyll-b in glassy solution has a spin-polarized lowest triplet state at and above 7? K. Ths magnitude of the .).'\_, .: effect is different for MTHF and ethanol as soIvents, in contrast to what is found for the porphin free base. Chloro-\_-phyla-a does not exhibit spa-polar~ation under identi
The role of the triplet state in chlorophyll photooxidation
β Scribed by N.E. Andreeva; G.V. Zakharova; V.V. Shubin; A.K. Chibisov
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- English
- Weight
- 342 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
β¦ Synopsis
The general pattern of chlorophyll photooxidation is considered. The conclusion is made that the reaction of photooxidation occurs exclusively via the chlorophyll triplet state.
π SIMILAR VOLUMES
Laser evcltation at 4579 and 514.5 nm of a frozen solution of chlorophyll a m n-oc~;mc products two ~IUOWS.C~~CC peak maxima at 2 K lhat may be assigned to IWO dlainct monomenc chlorophyll species Ucd~~rng zero-Geld fluorcsccncrdetected mxgetuz resorunce the triplet state properks of the IWO chlorop
Electroluminescence was obtained under conditions where the energy of the reaction was clearly insufficient to produce rubrene in the excited singlet state. These reactions involved rubrene radical-anions and an acceptor of less positive potential than the rubrene cation, as well as the correspondin
## The quantum efficiency of photooxidation of a number of xauthene dyr s at ZnO single crystal electrodes has been found to depend on the solution concentration of a triplet quenching agent, Fe&--, providing evidence for triplet state participation in the oxidation reaction.
Resonance Raman spectra of the lowest excited triplet state of chlorophyll a are obtained in benzene and in methanol by pumping at 660 nm in the Q, band and pmbing at 460 nm which is close to the absorption maximum of the T, state. Tbe spectrum observed in polar methanol differs significantly from t