Aliphatic sulphides: Physical quenchers and photoreducing agents

Joseph Guttenplan; Saul G. Cohen

doi:10.1039/C29690000247

Aliphatic sulphides: Physical quenchers and photoreducing agents

Molecular Pathobiology

Research output: Contribution to journal › Article › peer-review

Original language	English (US)
Pages (from-to)	247-248
Number of pages	2
Journal	Journal of the Chemical Society D: Chemical Communications
Issue number	6
DOIs	https://doi.org/10.1039/C29690000247
State	Published - 1969

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Molecular Medicine

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@article{f5f4cc50412545ff8256569bb2c3e051,

title = "Aliphatic sulphides: Physical quenchers and photoreducing agents",

author = "Joseph Guttenplan and Cohen, {Saul G.}",

note = "Funding Information: In the amine system, rates of the two quenching process : reactions of the complex are coniparable and eficient photoreduction, $ ca. 1, results.* That the phenyl sulphides are less effective quenchers than P$C=O + K.S.CH2R aliphatic sulyhides indicates that they do not behave like phenylamines, in which nitrogen leads to increased electron density in the ring, more favourable interaction between excited species and the conjugated system, and to efficient quenching. Quenching by a sulphide arises from interac- tion at the non-bonding electrons of sulphur; electron with- drawal by the phenyl group decreases effectiveness. This work was supported by a fellowship undcr Titlc IV, S.D.E.R., and by the National Science Foundation. (Received, November 25th, 1968; Com i 607.) C. G. Hatchard and C. A. Parkcr, Proc. Roy. SOC.,1956, A, 618, 235. A. Bcckett and G. Porter, Trans. Faraday SOC.,1963, 59, 2038. 3 P. J. Wagner and G. S. Hammond, J. Amer. Chem. SOG.,1966, 88, 1245. J. N. Pitts, jun., R. L. Letsinger, K. P. Taylor, J. M. Patterson, G. Keckten\z.ald, and K. 13. Martin, I. Arne!.. CIlF?JZ. SUC.,1969, 81, 6334. 5 S. G. Cohen, S. Orman, and D. *\. Laufer, J. Apnev. Chenz. SOG.,1962, 84, 3905. S. G. Cohcn and J. I. Cohen, J. Amer. Chem. SOC.,1967, 89, 164; J. Phys. CJzcwi., 1968, 72, 3782; S. G. Cohcn and 1% Jf. Chao, J. ..-liner. Chem Soc., 1968, 90, 165; S. G. Cohcn and J. H.Guttenplan, Tetrahedron Letters, 1968, 5353, 7 A. H. JTcllcr and H. Lconhard, Bey. Uunsengesellschaft Phys. Chenz., 1963, 67, 791.",

year = "1969",

doi = "10.1039/C29690000247",

language = "English (US)",

pages = "247--248",

journal = "Chemical Communications",

issn = "1359-7345",

publisher = "Royal Society of Chemistry",

number = "6",

}

TY - JOUR

T1 - Aliphatic sulphides

T2 - Physical quenchers and photoreducing agents

AU - Guttenplan, Joseph

AU - Cohen, Saul G.

N1 - Funding Information: In the amine system, rates of the two quenching process : reactions of the complex are coniparable and eficient photoreduction, $ ca. 1, results.* That the phenyl sulphides are less effective quenchers than P$C=O + K.S.CH2R aliphatic sulyhides indicates that they do not behave like phenylamines, in which nitrogen leads to increased electron density in the ring, more favourable interaction between excited species and the conjugated system, and to efficient quenching. Quenching by a sulphide arises from interac- tion at the non-bonding electrons of sulphur; electron with- drawal by the phenyl group decreases effectiveness. This work was supported by a fellowship undcr Titlc IV, S.D.E.R., and by the National Science Foundation. (Received, November 25th, 1968; Com i 607.) C. G. Hatchard and C. A. Parkcr, Proc. Roy. SOC.,1956, A, 618, 235. A. Bcckett and G. Porter, Trans. Faraday SOC.,1963, 59, 2038. 3 P. J. Wagner and G. S. Hammond, J. Amer. Chem. SOG.,1966, 88, 1245. J. N. Pitts, jun., R. L. Letsinger, K. P. Taylor, J. M. Patterson, G. Keckten\z.ald, and K. 13. Martin, I. Arne!.. CIlF?JZ. SUC.,1969, 81, 6334. 5 S. G. Cohen, S. Orman, and D. *\. Laufer, J. Apnev. Chenz. SOG.,1962, 84, 3905. S. G. Cohcn and J. I. Cohen, J. Amer. Chem. SOC.,1967, 89, 164; J. Phys. CJzcwi., 1968, 72, 3782; S. G. Cohcn and 1% Jf. Chao, J. ..-liner. Chem Soc., 1968, 90, 165; S. G. Cohcn and J. H.Guttenplan, Tetrahedron Letters, 1968, 5353, 7 A. H. JTcllcr and H. Lconhard, Bey. Uunsengesellschaft Phys. Chenz., 1963, 67, 791.

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Aliphatic sulphides: Physical quenchers and photoreducing agents

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