Abstracts - faqs.org

Abstracts

Chemicals, plastics and rubber industries

Search abstracts:
Abstracts » Chemicals, plastics and rubber industries

Gauche-trans conformational changes in ethyl formate chemisorbed on Ni(111): coverage-dependent RAIRS spectra

Article Abstract:

Infrared reflectance spectra of ethyl formate on Ni(111) at 105 K were measured as a function of surface coverage. The reflectance absorbance infrared spectroscopy activities of various bands were observed to vary in a correlated manner as a function of coverage. The activity of both the asymmetric stretching vibration and the twisting vibration of the CH2 group at low coverages conclusively indicated that adsorption happens initially in the s-cis,gauche conformation. These two fade out on increasing the coverage and entirely removed at full monolayer coverage.

Author: Wang, J., Castonguay, M., Roy, J.-R., Zahidi, E., McBreen, P.H.
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
Conformational analysis, Nickel, Reflectance spectroscopy

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


Methyl nitrite adsorption as a novel route to the surface methoxy intermediate

Article Abstract:

Methoxy species can be produced on reactive metal surfaces at low temperatures via thermal dissociation of an adsorbed precursor, methyl nitrite or (CH3ONO). The methoxy intermediate is strongly stabilized against thermal decomposition on tw Pt-Sn alloys, compared to Pt(111) where dissociation takes place at below 140 K. They also show a tremendous difference in selectivity for the products of methoxy decomposition compared to Pt(111). However, they do not form the CO and H2 dissociation products associated with methoxy chemistry on Pt(111).

Author: Peck, John W., Beck, David E., Mahon, Daniel I., Koel, Bruce K.
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
Adsorption, Alloys

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


Vibrational analysis of a chemisorbed polyatomic molecule: methoxy on Cu(100)

Article Abstract:

A normal-mode analysis of reflection absorption infrared spectroscopy data obtained for a range of isotopomers of methoxy on the Cu(100) surface is presented. The CO bond of methoxy/Cu(100) was found to be substantially perturbed relative to that of methanol.

Author: Mudalige, Kanchana, Warren, Samantha, Trenary, Michael
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2000

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


Subjects list: Research, Usage, Infrared spectroscopy, Surface chemistry
Similar abstracts:
  • Abstracts: Syn-anti conformational changes in zinc porphyrin dimers induced by temperature-controlled alcohol ligation. Switching direction of laterally ordered monolayers induced by transfer instability
  • Abstracts: Formation of chiral domains for tartaric acid on Cu(110): a combined DFT and kinetic Monte Carlo study
  • Abstracts: Intramolecular charge transfer assisted by conformational changes in the excited state of fluorene-dibenzothiophene-S, S-dioxide co-oligomers
  • Abstracts: Nanostructural organization and anion effects on the temperature dependence of the Optical Kerr effect spectra of ionic liquids
  • Abstracts: Resonant and nonresonant vibrational and electronic excitations in trimethylaluminum adsorbed on GaAs. Photophysics of PTCDA and Me-PTCDI thin films: Effects of growth temperatures
This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.
Some parts © 2025 Advameg, Inc.