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Fast formation of aromatic cations in cyclohexane observed by pulse radiolysis

โœ Scribed by O. Brede; W. Helmstreit; R. Mehnert


Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
558 KB
Volume
28
Category
Article
ISSN
0009-2614

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โœฆ Synopsis


The fast formation of c&ions of be.n~~~he~one, bipheny1, naphthalene, anthracene and'phe-gene in liquid '.

.. cyciohexane wzis studied by nanosecond pulse ndklysis. Rate ~onsku-d b&w&n 2.3 X lOLo XT' se-' (far naphtha-.. lene) and not below 2.5 X 10" hf" s-l (for benzophenone)'were defied and compared with the corresponding rate constants for anion formatiqn.

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๐Ÿ“œ SIMILAR VOLUMES


Picosecond pulse radiolysis of aromatic
โœ Charles D. Jonah; Myran C. Sauer Jr. ๐Ÿ“‚ Article ๐Ÿ“… 1982 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 374 KB

Evolution of the absorption spectra due to uannent spec~cs produced by rhc pulse rrdrolysu of biphcnyl, pyrene, diphenylamine. and naphthalcne in cyclohcuane was measured over 50 ps to 3 ns. The mitial(50 ps) yield of triplet is only B small fraction of the ytrld (G -0.3) at 3 ns.

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The relative yields of cyclohexyl radical in pulse-irradiated liquid cyclohexane and cyclohexane solutions containing negatwe (C02) and positive charge scavengers (cis-and trans-decalin) are measured via time-resolved EPR. Charge scavenging has a negligible effect on radical production. A mechanism

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โœ Charles D. Jonah; Myran C. Sauer Jr.; Ronald Cooper; Alexander D. Trifunac ๐Ÿ“‚ Article ๐Ÿ“… 1979 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 395 KB

Light emission from the first excited sir&et states of 9.IO-diphenyf anthr~~ent .mdp-terphcnvl in cqclohexane is measured following pulsed electron irradiation. The hicetics of e&ted state formntion nnd decay are mrwsured as ZI funcrion of scinnl-kItOr concentration. and the effects of additives det