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Titolo:
Orientational structure of thiophene thiol self-assembled monolayer studied by using metastable atom electron spectroscopy and infrared reflection absorption spectroscopy
Autore:
Ito, E; Yamamoto, M; Kajikawa, K; Yamashita, D; Ishii, H; Ouchi, Y; Seki, K; Okawa, H; Hashimoto, K;
Indirizzi:
Nagoya Univ, Res Ctr Mat Sci, Dept Chem, Venture Business Lab,Chikusa Ku, Nagoya, Aichi 4648602, Japan Nagoya Univ Nagoya Aichi Japan 4648602 a Ku, Nagoya, Aichi 4648602, Japan Nagoya Univ, Grad Sch Sci, Chikusa Ku, Nagoya, Aichi 4648602, Japan NagoyaUniv Nagoya Aichi Japan 4648602 a Ku, Nagoya, Aichi 4648602, Japan Kogakuin Univ, Fac Engn, Dept Appl Chem, Hachioji, Tokyo 1920015, Japan Kogakuin Univ Hachioji Tokyo Japan 1920015 Hachioji, Tokyo 1920015, Japan
Titolo Testata:
LANGMUIR
fascicolo: 14, volume: 17, anno: 2001,
pagine: 4282 - 4286
SICI:
0743-7463(20010710)17:14<4282:OSOTTS>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
RAY PHOTOELECTRON-SPECTROSCOPY; ALKANETHIOL MONOLAYERS; PENNING IONIZATION; ORGANIC MONOLAYERS; GOLD SURFACES; AU(111); FILMS; AG(111); HEXADECANETHIOL; POLYTHIOPHENE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Kajikawa, K Nagoya Univ, Res Ctr Mat Sci, Dept Chem, Venture Business Lab,Chikusa Ku, Furo Cho, Nagoya, Aichi 4648602, Japan Nagoya Univ Furo Cho Nagoya Aichi Japan 4648602 4648602, Japan
Citazione:
E. Ito et al., "Orientational structure of thiophene thiol self-assembled monolayer studied by using metastable atom electron spectroscopy and infrared reflection absorption spectroscopy", LANGMUIR, 17(14), 2001, pp. 4282-4286

Abstract

A thiophene-terminated alkanethiolate self-assembled monolayer was studiedby metastable atom electron spectroscopy (MAES)and infrared reflection absorption spectroscopy (IR-RAS). Since MAES is an extremely surface selectivemethod, it allowed us to determine which part of the molecule is exposed to the outside of the surface in a monolayer. Theoretical simulation with partial exterior electron density suggested that not only the thiophene groupbut also a part of the main chain are exposed to the outside, indicating the bonding to the substrate with thiolate formation. The selection rules ofIR-RAS demonstrate that the plane of the thiophene ring is almost lying parallel to the surface and that the alkyl chain aligns nearly along the surface normal. These results are consistent with the findings in our previous X-ray photoelectron spectroscopy study that the molecule is adsorbed with forming thiolate in a densely packed manner.

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Documento generato il 31/03/20 alle ore 05:09:40