The conversion of di-σ bonded ethylene to ethylidyne on Pt(111) monitored with sum frequency generation: evidence for an ethylidene (or ethyl) intermediate

Paul Cremer; Colin Stanners; J. W. Niemantsverdriet; Y. R. Shen; Gabor Somorjai

doi:10.1016/0039-6028(94)00820-5

The conversion of di-σ bonded ethylene to ethylidyne on Pt(111) monitored with sum frequency generation: evidence for an ethylidene (or ethyl) intermediate

Paul Cremer, Colin Stanners, J. W. Niemantsverdriet, Y. R. Shen, Gabor Somorjai

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Abstract

The conversion of di-σ bonded ethylene (CH₂CH₂) to ethylidyne (CCH₃) on the Pt(111) crystal surface was monitored with infrared-visible sum frequency generation (SFG) in the ν(CH) frequency range. The conversion began around 255 K and involved a third stable species that is neither di-σ bonded ethylene nor ethylidyne. This species manifested itself as a peak at 2957 cm^-1 in the vibrational spectrum. Furthermore, we found the same species present during the conversion of vinyl iodide to ethylidyne on Pt(111). The 2957 cm^-1 feature has been assigned to the CH₃ asymmetric stretch of ethylidene and/or ethyl.

Original language	English (US)
Pages (from-to)	111-118
Number of pages	8
Journal	Surface Science
Volume	328
Issue number	1-2
DOIs	https://doi.org/10.1016/0039-6028(94)00820-5
State	Published - Apr 20 1995

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/0039-6028(94)00820-5

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@article{d4355b2081374a2e80e0d6c9b0af26b2,

title = "The conversion of di-σ bonded ethylene to ethylidyne on Pt(111) monitored with sum frequency generation: evidence for an ethylidene (or ethyl) intermediate",

abstract = "The conversion of di-σ bonded ethylene (CH2CH2) to ethylidyne (CCH3) on the Pt(111) crystal surface was monitored with infrared-visible sum frequency generation (SFG) in the ν(CH) frequency range. The conversion began around 255 K and involved a third stable species that is neither di-σ bonded ethylene nor ethylidyne. This species manifested itself as a peak at 2957 cm-1 in the vibrational spectrum. Furthermore, we found the same species present during the conversion of vinyl iodide to ethylidyne on Pt(111). The 2957 cm-1 feature has been assigned to the CH3 asymmetric stretch of ethylidene and/or ethyl.",

author = "Paul Cremer and Colin Stanners and Niemantsverdriet, {J. W.} and Shen, {Y. R.} and Gabor Somorjai",

note = "Funding Information: This work was supported by the director, Office of Energy Research, Office of Basic Energy Sciences, Material Science Division, of the US Department of Energy under Contract No. DE-AC03-76SF00098. We would also like to thank the Netherlands Organization for the Study of Science (NWO) for supporting J.W. Niemantsverdriet's stay in Berkeley.",

year = "1995",

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doi = "10.1016/0039-6028(94)00820-5",

language = "English (US)",

volume = "328",

pages = "111--118",

journal = "Surface Science",

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T1 - The conversion of di-σ bonded ethylene to ethylidyne on Pt(111) monitored with sum frequency generation

T2 - evidence for an ethylidene (or ethyl) intermediate

AU - Cremer, Paul

AU - Stanners, Colin

AU - Niemantsverdriet, J. W.

AU - Shen, Y. R.

AU - Somorjai, Gabor

N1 - Funding Information: This work was supported by the director, Office of Energy Research, Office of Basic Energy Sciences, Material Science Division, of the US Department of Energy under Contract No. DE-AC03-76SF00098. We would also like to thank the Netherlands Organization for the Study of Science (NWO) for supporting J.W. Niemantsverdriet's stay in Berkeley.

PY - 1995/4/20

Y1 - 1995/4/20

N2 - The conversion of di-σ bonded ethylene (CH2CH2) to ethylidyne (CCH3) on the Pt(111) crystal surface was monitored with infrared-visible sum frequency generation (SFG) in the ν(CH) frequency range. The conversion began around 255 K and involved a third stable species that is neither di-σ bonded ethylene nor ethylidyne. This species manifested itself as a peak at 2957 cm-1 in the vibrational spectrum. Furthermore, we found the same species present during the conversion of vinyl iodide to ethylidyne on Pt(111). The 2957 cm-1 feature has been assigned to the CH3 asymmetric stretch of ethylidene and/or ethyl.

AB - The conversion of di-σ bonded ethylene (CH2CH2) to ethylidyne (CCH3) on the Pt(111) crystal surface was monitored with infrared-visible sum frequency generation (SFG) in the ν(CH) frequency range. The conversion began around 255 K and involved a third stable species that is neither di-σ bonded ethylene nor ethylidyne. This species manifested itself as a peak at 2957 cm-1 in the vibrational spectrum. Furthermore, we found the same species present during the conversion of vinyl iodide to ethylidyne on Pt(111). The 2957 cm-1 feature has been assigned to the CH3 asymmetric stretch of ethylidene and/or ethyl.

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U2 - 10.1016/0039-6028(94)00820-5

DO - 10.1016/0039-6028(94)00820-5

M3 - Article

AN - SCOPUS:0029289309

SN - 0039-6028

VL - 328

SP - 111

EP - 118

JO - Surface Science

JF - Surface Science

IS - 1-2

ER -

The conversion of di-σ bonded ethylene to ethylidyne on Pt(111) monitored with sum frequency generation: evidence for an ethylidene (or ethyl) intermediate

Abstract

All Science Journal Classification (ASJC) codes

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