2017
DOI: 10.1002/cphc.201601422
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Synthesis of the Smallest Member of the Silylketene Family: H3SiC(H)=C=O

Abstract: Exploiting photoionization reflectron time-of-flight mass spectrometry (PI-ReTOF-MS) combined with electronic structure calculations, it is shown that the hitherto elusive silylketene molecule (H SiC(H)=C=O)-the isovalent counterpart of the well-known methylketene molecule-is forming via interaction of energetic electrons with low-temperature silane-carbon monoxide ices. In combination with the infrared spectroscopically detected triplet dicarbon monoxide reactant, electronic structure calculations suggest tha… Show more

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Cited by 7 publications
(1 citation statement)
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“…The electron gun (specs EQ [22][23][24][25][26][27][28][29][30][31][32][33][34][35] is positioned 100 cm from the sample, and the energetic electrons processed 1.0 AE 0.1 cm 2 of the methane ice striking it at an incidence angle of 701 relative to the surface normal of the substrate for 1 hour with a current of 30 nA, which results in a fluence of (6.7 AE 0.5) Â 10 14 electrons cm À2 . 95,96 Utilizing Monte Carlo simulations via CASINO 2.42 software 97 the mean average penetration depth of the energetic electrons was calculated to be 410 AE 20 nm and only up to 5% of the energy is absorbed by the ice beyond 250 nm. Using a density of 0.47 g cm À3 for methane it was determined that the average energy deposited into the ice was 3.5 AE 1.1 eV molecule À1 of methane (Table S1, ESI †).…”
Section: Methodsmentioning
confidence: 99%
“…The electron gun (specs EQ [22][23][24][25][26][27][28][29][30][31][32][33][34][35] is positioned 100 cm from the sample, and the energetic electrons processed 1.0 AE 0.1 cm 2 of the methane ice striking it at an incidence angle of 701 relative to the surface normal of the substrate for 1 hour with a current of 30 nA, which results in a fluence of (6.7 AE 0.5) Â 10 14 electrons cm À2 . 95,96 Utilizing Monte Carlo simulations via CASINO 2.42 software 97 the mean average penetration depth of the energetic electrons was calculated to be 410 AE 20 nm and only up to 5% of the energy is absorbed by the ice beyond 250 nm. Using a density of 0.47 g cm À3 for methane it was determined that the average energy deposited into the ice was 3.5 AE 1.1 eV molecule À1 of methane (Table S1, ESI †).…”
Section: Methodsmentioning
confidence: 99%