A Study of Norrish Type II Reactions of Aryl Alkyl Ketones Included within Zeolites

V. Ramamurthy; D. R. Corbin; L. J. Johnston

doi:10.1021/ja00036a040

A Study of Norrish Type II Reactions of Aryl Alkyl Ketones Included within Zeolites

V. Ramamurthy, D. R. Corbin, L. J. Johnston

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Abstract

The photochemical and photophysical behavior of a large number of phenyl alkanones included in zeolites has been investigated. The interior size and shape of the zeolites control the behavior of the triplet ketone as well as that of the 1,4-diradical generated by Norrish type II γ-hydrogen abstraction. A relationship between the size and shape of the reaction cavity and the extent of the restrictions on the triplet ketone and the diradical intermediate has been observed. A model based on the "reaction cavity" concept has been valuable in understanding the unique influence of the zeolite on the reaction course of the type II process.

Original language	English (US)
Pages (from-to)	3870-3882
Number of pages	13
Journal	Journal of the American Chemical Society
Volume	114
Issue number	10
DOIs	https://doi.org/10.1021/ja00036a040
State	Published - May 1 1992
Externally published	Yes

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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abstract = "The photochemical and photophysical behavior of a large number of phenyl alkanones included in zeolites has been investigated. The interior size and shape of the zeolites control the behavior of the triplet ketone as well as that of the 1,4-diradical generated by Norrish type II γ-hydrogen abstraction. A relationship between the size and shape of the reaction cavity and the extent of the restrictions on the triplet ketone and the diradical intermediate has been observed. A model based on the {"}reaction cavity{"} concept has been valuable in understanding the unique influence of the zeolite on the reaction course of the type II process.",

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AU - Corbin, D. R.

AU - Johnston, L. J.

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N2 - The photochemical and photophysical behavior of a large number of phenyl alkanones included in zeolites has been investigated. The interior size and shape of the zeolites control the behavior of the triplet ketone as well as that of the 1,4-diradical generated by Norrish type II γ-hydrogen abstraction. A relationship between the size and shape of the reaction cavity and the extent of the restrictions on the triplet ketone and the diradical intermediate has been observed. A model based on the "reaction cavity" concept has been valuable in understanding the unique influence of the zeolite on the reaction course of the type II process.

AB - The photochemical and photophysical behavior of a large number of phenyl alkanones included in zeolites has been investigated. The interior size and shape of the zeolites control the behavior of the triplet ketone as well as that of the 1,4-diradical generated by Norrish type II γ-hydrogen abstraction. A relationship between the size and shape of the reaction cavity and the extent of the restrictions on the triplet ketone and the diradical intermediate has been observed. A model based on the "reaction cavity" concept has been valuable in understanding the unique influence of the zeolite on the reaction course of the type II process.

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A Study of Norrish Type II Reactions of Aryl Alkyl Ketones Included within Zeolites

Abstract

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