Singlet biradical → singlet zwitterion optical transition in a twisted olefin

Journal of the American Chemical Society

Volumn 118, Issue 37, 1996, Pages 8981-8982

  Piotrowiak, Piotr ^a   Strati, Gina ^a   Smirnov, Sergei N ^b   Warman, John M ^c   Schuddeboom, Wouter ^c  

^a UNIVERSITY OF NEW ORLEANS   (United States)

^b Dartmouth College   (United States)

^c DELFT UNIVERSITY OF TECHNOLOGY   (Netherlands)

Author keywords

[No Author keywords available]

Indexed keywords

ALKENE;

ARTICLE; DRUG STRUCTURE; FLUORESCENCE; MOLECULAR DYNAMICS;

EID: 0029810279     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja961829+     Document Type: Article

References (22)

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12. (c) Doany, F. E.; Heilweil, E. J.; Moore, R.; Hochstrasser, R. M. J. Chem. Phys. 1984, 80, 201.
13. The twist angle is 31° from the X-ray data of Stezowski et al. (Stezowski, J. J.; Hildebrand, T.; Suissa, M. R.; Agranat, I. Struct. Chem. 1989, 1, 123) and 27° predicted by AMI.
14. (a) Abrash, S.; Repinec, S.; Hochstrasser, R. M. J. Chem. Phys. 1990, 93, 1041;
15. (b) Todd, D. C.; Jean, J, M.; Rosenthal, S. J.; Ruggiero, A. J.; Yang, D.; Fleming, G. R. J. Chem. Phys. 1990, 93, 8658.
16. Nd:YAG, 532 nm, 7 ns fwhm, 100 mJ or Nd:YAG, 355 nm, 5 ns fwhm, 30 mJ. No photodegradation of the sample was observed.
17. Upper limit estimated from the reconvolution of the 7 ns instrument response function.
18. 308 nm XeCl excitation (microwave conductivity), 355 nm Nd:YAG excitation (dc conductivity).
19. Schuddeboom, W.; Jonker, S. A.; Warman, J. M.; Haas, M. P. d.; Vermeulen, M. J. W.; Jager,W. F.; Lange, B. d.; Feringa, B. L.; Fessenden, R. W. J. Am. Chem. Soc. 1993, 115, 3286.
20. The dipole moment of the fully charge separated state of BPH estimated on the basis of AMI calculations of the charge distribution in the cyclopentaphenanthryl radical anion and radical cation is 21 D.
21. Orlandi, G.; Palmieri, P.; Poggi, G. J. Am. Chem. Soc. 1979, 101, 3492.
22. 1 ground state-to-zwitterion state transition in a binuclear Mo complex, which in terms of electronic symmetry is closely related to our system, was first observed in the elegant experiment of Engebretson et al. (Engebretson, D. S.; Zaleski, J. M.; Leroi, G. E.; Nocera, D. G. Science 1994, 265, 759).