Studies in vacuum-ultraviolet photochemistry. Part II. 2,2,4- Trimethylpentane

B. G. Gowenlock; C. A F Johnson; E. Senogles

Studies in vacuum-ultraviolet photochemistry. Part II. 2,2,4- Trimethylpentane

B. G. Gowenlock, C. A F Johnson, E. Senogles

School of Engineering & Physical Sciences

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Abstract

2,4-Trimethylpentane has been photolysed at 123.6 and 147 nm at substrate pressures of 1-55 Torr, and conversions of 0.02-0.4%. Use of radical scavenging techniques show the existence of three molecular primary C₈H ₁₈ ? i-C₄H₈ + i-C₄H ₁₀ (i) ? CH₄ + C₇H₁₄ (ii) ? C₃H₆ + neo-C₅H₁₂ (iii) C ₈H₁₈ ? Me + C₇H₁₅ (iv) ? Bu^t + B^l (v) ? Prⁱ + neo-C ₅H₁₁ (vi) processes (i)-(iii). In addition to processes (i)-(iii), radical processes (iv)-(vi) also occur. Deactivation of the excited molecular and radical primary products is incomplete, and secondary fragmentation reactions occur.

Original language	English
Pages (from-to)	1386-1388
Number of pages	3
Journal	Journal of the Chemical Society, Perkin Transactions 2
Issue number	10
Publication status	Published - 1972

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title = "Studies in vacuum-ultraviolet photochemistry. Part II. 2,2,4- Trimethylpentane",

abstract = "2,4-Trimethylpentane has been photolysed at 123.6 and 147 nm at substrate pressures of 1-55 Torr, and conversions of 0.02-0.4%. Use of radical scavenging techniques show the existence of three molecular primary C8H 18 ? i-C4H8 + i-C4H 10 (i) ? CH4 + C7H14 (ii) ? C3H6 + neo-C5H12 (iii) C 8H18 ? Me + C7H15 (iv) ? But + Bl (v) ? Pri + neo-C 5H11 (vi) processes (i)-(iii). In addition to processes (i)-(iii), radical processes (iv)-(vi) also occur. Deactivation of the excited molecular and radical primary products is incomplete, and secondary fragmentation reactions occur.",

author = "Gowenlock, {B. G.} and Johnson, {C. A F} and E. Senogles",

year = "1972",

language = "English",

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journal = "Journal of the Chemical Society, Perkin Transactions 2",

issn = "1472-779X",

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T1 - Studies in vacuum-ultraviolet photochemistry. Part II. 2,2,4- Trimethylpentane

AU - Gowenlock, B. G.

AU - Johnson, C. A F

AU - Senogles, E.

PY - 1972

Y1 - 1972

N2 - 2,4-Trimethylpentane has been photolysed at 123.6 and 147 nm at substrate pressures of 1-55 Torr, and conversions of 0.02-0.4%. Use of radical scavenging techniques show the existence of three molecular primary C8H 18 ? i-C4H8 + i-C4H 10 (i) ? CH4 + C7H14 (ii) ? C3H6 + neo-C5H12 (iii) C 8H18 ? Me + C7H15 (iv) ? But + Bl (v) ? Pri + neo-C 5H11 (vi) processes (i)-(iii). In addition to processes (i)-(iii), radical processes (iv)-(vi) also occur. Deactivation of the excited molecular and radical primary products is incomplete, and secondary fragmentation reactions occur.

AB - 2,4-Trimethylpentane has been photolysed at 123.6 and 147 nm at substrate pressures of 1-55 Torr, and conversions of 0.02-0.4%. Use of radical scavenging techniques show the existence of three molecular primary C8H 18 ? i-C4H8 + i-C4H 10 (i) ? CH4 + C7H14 (ii) ? C3H6 + neo-C5H12 (iii) C 8H18 ? Me + C7H15 (iv) ? But + Bl (v) ? Pri + neo-C 5H11 (vi) processes (i)-(iii). In addition to processes (i)-(iii), radical processes (iv)-(vi) also occur. Deactivation of the excited molecular and radical primary products is incomplete, and secondary fragmentation reactions occur.

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M3 - Article

SN - 1472-779X

SP - 1386

EP - 1388

JO - Journal of the Chemical Society, Perkin Transactions 2

JF - Journal of the Chemical Society, Perkin Transactions 2

IS - 10

ER -

Studies in vacuum-ultraviolet photochemistry. Part II. 2,2,4- Trimethylpentane

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