Periasamy, N. ; Linschitz, H. ; Closs, G. L. ; Boxer, S. G. (1978) Photoprocesses in covalently linked pyrochlorophyllide dimer: triplet state formation and opening and closing of hydroxylic linkages PNAS, 75 (6). pp. 2563-2566. ISSN 0027-8424
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Official URL: http://www.pnas.org/content/75/6/2563.short
Abstract
Covalently linked pyrochlorophyllide a dimers exist in solution in either "pinned" or unfolded form, depending on the concentration of hydroxylic (H bonding) or non-H-bonding Lewis bases. Laser flash photolysis studies have been made on these dimer forms and on pyrochlorophyllide monomer at 30-nsec resolution. Spectra and recovery kinetics, including observation of both the triplet decay and ground state folding reactions, show that the flash transient obtained from the pinned form consists of a triplet and ground state moiety in the unpinned configuration. A charge-transfer excited state is not seen.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to National Academy of Sciences. |
| ID Code: | 81706 |
| Deposited On: | 07 Feb 2012 11:02 |
| Last Modified: | 07 Feb 2012 11:02 |
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