Studies in vacuum ultraviolet photochemistry IV. Diethyl ether

C. A F Johnson, W. M C Lawson

Research output: Contribution to journalArticle

Abstract

Diethyl ether has been photolysed at 147 and 123 nm in the gas phase at pressures of 2-200 Torr and conversions <0.5%. The most important primary process is that involving C-O fission [reaction (i)]. The majority of the Et-O-Et + hv ? Et + EtO (i) ethoxyl radicals decompose in an early vibration by loss of a methyl radical [reaction (ii)]. There is a small contribution from a second primary process [reaction (iii)] involving elimination of hydrogen. The ratio process (i): process EtO ? Me + HCHO (ii) Et-O-Et + hv ? EtOCH=CH2 + H2 (or 2H) (iii) (iii) is ca. 60. The overall photochemistry is interpreted in terms of these primary processes, and subsequent reaction of the radical products.

Original languageEnglish
Pages (from-to)353-355
Number of pages3
JournalJournal of the Chemical Society, Perkin Transactions 2
Issue number4
Publication statusPublished - 1974

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Fission reactions
Photochemical reactions
Ether
Hydrogen
Gases
Vacuum
methyl radical

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title = "Studies in vacuum ultraviolet photochemistry IV. Diethyl ether",
abstract = "Diethyl ether has been photolysed at 147 and 123 nm in the gas phase at pressures of 2-200 Torr and conversions <0.5{\%}. The most important primary process is that involving C-O fission [reaction (i)]. The majority of the Et-O-Et + hv ? Et + EtO (i) ethoxyl radicals decompose in an early vibration by loss of a methyl radical [reaction (ii)]. There is a small contribution from a second primary process [reaction (iii)] involving elimination of hydrogen. The ratio process (i): process EtO ? Me + HCHO (ii) Et-O-Et + hv ? EtOCH=CH2 + H2 (or 2H) (iii) (iii) is ca. 60. The overall photochemistry is interpreted in terms of these primary processes, and subsequent reaction of the radical products.",
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}

Studies in vacuum ultraviolet photochemistry IV. Diethyl ether. / Johnson, C. A F; Lawson, W. M C.

In: Journal of the Chemical Society, Perkin Transactions 2, No. 4, 1974, p. 353-355.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Studies in vacuum ultraviolet photochemistry IV. Diethyl ether

AU - Johnson, C. A F

AU - Lawson, W. M C

PY - 1974

Y1 - 1974

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AB - Diethyl ether has been photolysed at 147 and 123 nm in the gas phase at pressures of 2-200 Torr and conversions <0.5%. The most important primary process is that involving C-O fission [reaction (i)]. The majority of the Et-O-Et + hv ? Et + EtO (i) ethoxyl radicals decompose in an early vibration by loss of a methyl radical [reaction (ii)]. There is a small contribution from a second primary process [reaction (iii)] involving elimination of hydrogen. The ratio process (i): process EtO ? Me + HCHO (ii) Et-O-Et + hv ? EtOCH=CH2 + H2 (or 2H) (iii) (iii) is ca. 60. The overall photochemistry is interpreted in terms of these primary processes, and subsequent reaction of the radical products.

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JO - Journal of the Chemical Society, Perkin Transactions 2

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