Mercury-Sensitized Photolysis of Propylene Primary and Radical Reactions

A description is given of the mercury-sensitized photolysis of propylene and mixtures of propylene with H2, D2, and propylene-d6 at 26°C using 253.7 and 184.9-nm light. There are at least five primary steps: C3H6*→H+C3H5, C3H6*→CH3+C2H3, C3H6*→cyclopropane, C3H6*→CH4+C2H2, C3H6*→H2+(C3H4).The ra...

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Veröffentlicht in:	Journal of Chemical Physics (U.S.) 1965-02, Vol.42 (4), p.1262-1268
Hauptverfasser:	Heller, Carl A., Gordon, Alvin S.
Format:	Artikel
Sprache:	eng
Schlagworte:	CHEMISTRY DECOMPOSITION DEUTERIUM COMPOUNDS FREQUENCY HYDROGEN LABELLED COMPOUNDS LIGHT MERCURY PHOTOCHEMISTRY PROPYLENE Radiation Chemistry SENSITIVITY
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container_end_page	1268
container_issue	4
container_start_page	1262
container_title	Journal of Chemical Physics (U.S.)
container_volume	42
creator	Heller, Carl A. Gordon, Alvin S.
description	A description is given of the mercury-sensitized photolysis of propylene and mixtures of propylene with H2, D2, and propylene-d6 at 26°C using 253.7 and 184.9-nm light. There are at least five primary steps: C3H6→H+C3H5, C3H6→CH3+C2H3, C3H6→cyclopropane, C3H6→CH4+C2H2, C3H6*→H2+(C3H4).The ratios of the primary reaction rates depend upon wavelength of the light and deuteration of the propylene. Addition of hydrogen atoms to the propylene double bond gives 5% n-propyl radicals. We find no evidence of vinyl—vinyl radical combination to form butadiene. The cross-combination ratio of isopropyl and allyl radicals is 6½.
doi_str_mv	10.1063/1.1696107
format	Article
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There are at least five primary steps: C3H6→H+C3H5, C3H6→CH3+C2H3, C3H6→cyclopropane, C3H6→CH4+C2H2, C3H6→H2+(C3H4).The ratios of the primary reaction rates depend upon wavelength of the light and deuteration of the propylene. Addition of hydrogen atoms to the propylene double bond gives 5% n-propyl radicals. We find no evidence of vinyl—vinyl radical combination to form butadiene. 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There are at least five primary steps: C3H6→H+C3H5, C3H6→CH3+C2H3, C3H6→cyclopropane, C3H6→CH4+C2H2, C3H6→H2+(C3H4).The ratios of the primary reaction rates depend upon wavelength of the light and deuteration of the propylene. Addition of hydrogen atoms to the propylene double bond gives 5% n-propyl radicals. We find no evidence of vinyl—vinyl radical combination to form butadiene. 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There are at least five primary steps: C3H6→H+C3H5, C3H6→CH3+C2H3, C3H6→cyclopropane, C3H6→CH4+C2H2, C3H6*→H2+(C3H4).The ratios of the primary reaction rates depend upon wavelength of the light and deuteration of the propylene. Addition of hydrogen atoms to the propylene double bond gives 5% n-propyl radicals. We find no evidence of vinyl—vinyl radical combination to form butadiene. The cross-combination ratio of isopropyl and allyl radicals is 6½.</abstract><doi>10.1063/1.1696107</doi><tpages>7</tpages></addata></record>
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subjects	CHEMISTRY DECOMPOSITION DEUTERIUM COMPOUNDS FREQUENCY HYDROGEN LABELLED COMPOUNDS LIGHT MERCURY PHOTOCHEMISTRY PROPYLENE Radiation Chemistry SENSITIVITY
title	Mercury-Sensitized Photolysis of Propylene Primary and Radical Reactions
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