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Titolo:
Physisorption of a long-chain eta-alkane on Ag(111) surface: an infra-red reflection absorption spectroscopic study
Autore:
Yamamoto, M; Sakurai, Y; Hosoi, Y; Ishii, H; Ito, E; Kajikawa, K; Ouchi, Y; Seki, K;
Indirizzi:
Nagoya Univ, Dept Chem, Grad Sch Sci, Chikusa Ku, Nagoya, Aichi 4648602, Japan Nagoya Univ Nagoya Aichi Japan 4648602 a Ku, Nagoya, Aichi 4648602, Japan Nagoya Univ, Res Ctr Mat Sci, Chikusa Ku, Nagoya, Aichi 4648602, Japan Nagoya Univ Nagoya Aichi Japan 4648602 a Ku, Nagoya, Aichi 4648602, Japan Nagoya Univ, Venture Business Lab, Chikusa Ku, Nagoya, Aichi 4648602, Japan Nagoya Univ Nagoya Aichi Japan 4648602 a Ku, Nagoya, Aichi 4648602, Japan
Titolo Testata:
SURFACE SCIENCE
, volume: 428, anno: 1999,
pagine: 388 - 392
SICI:
0039-6028(19990601)428:<388:POALEO>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
ENERGY ELECTRON-DIFFRACTION; H STRETCHING REGION; NORMAL-ALKYL CHAINS; POLYMETHYLENE CHAIN; NORMAL PARAFFINS; THIN CRYSTALS; CYCLOHEXANE; HYDROCARBONS; MONOLAYERS; ADSORPTION;
Keywords:
alkanes; infra-red absorption spectroscopy; metallic surfaces; physical adsorption; silver;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Yamamoto, M Nagoya Univ, Dept Chem, Grad Sch Sci, Chikusa Ku, Nagoya, Aichi 4648602, Japan Nagoya Univ Nagoya Aichi Japan 4648602 , Aichi 4648602, Japan
Citazione:
M. Yamamoto et al., "Physisorption of a long-chain eta-alkane on Ag(111) surface: an infra-red reflection absorption spectroscopic study", SURF SCI, 428, 1999, pp. 388-392

Abstract

Adsorption of a long chain n-alkane, tetratetracontane (n-C44H90), on an Ag(111) surface was studied by infrared reflection absorption spectroscopy (IRAS). The first layer physisorbed on the Ag(lll) surface assumes a 'flat on' structure with the molecular plane formed by carbon atoms parallel to the surface. The structure gave CH stretching vibration bands at 2907 and 2814 cm(-1). With the aid of auxiliary IRAS data of n-C44H90 on Au(111), thesepeaks were attributed to the CH bonds in the upper side of the molecular plane (HC/Ag) and those in the vicinity of the Ag(111) surface (CH/Ag), respectively. The difference in frequency was ascribed to the interaction of the latter CH bonds with Ag. This 'softening' of the CH bond was explained bydipole-image dipole interactions with the Ag surface. (C) 1999 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 02:30:17