Fluorescence from samarium(II) iodide and its electron transfer quenching: Dynamics of the reaction of benzyl radicals with Sm(II)

Journal of Organic Chemistry

Volumn 61, Issue 22, 1996, Pages 7918-7921

  Skene, W G ^a   Scaiano, J C ^a   Cozens, F L ^a  

^a UNIVERSITY OF OTTAWA   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001703044     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo960473h     Document Type: Article

References (24)

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18. The laser system uses Lumonics EX-510 and EX-530 for excitation wavelengths of 248 and 308 nm, Surelite lasers from Continuum for the Nd-YAG wavelengths of 266, 355, and 532 nm, and a Molectron UV-24 nitrogen laser for 337 nm. All pulse durations are <10 ns and typical pulse energies between 5 and 50 mJ. The signals from the monochromator/photomultiplier system were initially captured by a Tektronix 2440 digitiger and transferred to a Power-Macintosh computer that controlled the experiment with software developed in the LabVIEW 3.1.1 environment from National Instruments. Other aspects of the system are similar to those described earlier: Scaiano, J. C. J. Am. Chem. Soc. 1980, 102, 7747. Scaiano, J. C.; Tanner, M.; Weir, D. J. Am. Chem. Soc. 1985, 107, 4396.
19. The laser system uses Lumonics EX-510 and EX-530 for excitation wavelengths of 248 and 308 nm, Surelite lasers from Continuum for the Nd-YAG wavelengths of 266, 355, and 532 nm, and a Molectron UV-24 nitrogen laser for 337 nm. All pulse durations are <10 ns and typical pulse energies between 5 and 50 mJ. The signals from the monochromator/photomultiplier system were initially captured by a Tektronix 2440 digitiger and transferred to a Power-Macintosh computer that controlled the experiment with software developed in the LabVIEW 3.1.1 environment from National Instruments. Other aspects of the system are similar to those described earlier: Scaiano, J. C. J. Am. Chem. Soc. 1980, 102, 7747. Scaiano, J. C.; Tanner, M.; Weir, D. J. Am. Chem. Soc. 1985, 107, 4396.
20. 2 concentration. There are considerable experimental difficulties in handling very dilute solutions of air- and water-sensitive substrates; this may have contributed to the dispersion in the experimental emission lifetimes.
21. Based on a lifetime of 61 ns determined for that particular experiment. See above for a discussion of the reproducibility of these lifetimes.
22. Chatgilialoglu, C. In Handbook of Organic Photochemistry; Scaiano, J. C., Ed.; CRC Press: Boca Raton, FL, 1989; Vol. II, p 3.
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24. Andrieux, C. P.; Le Gorande, A.; Savéant, J. M. J. Am. Chem. Soc. 1992, 114, 6892.