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Surface study of organopalladium molecules on S-terminated GaAs
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Konishi, Tomoya, Nishiwaki, Nagatoshi, Toujyou, Takashi, Ishikawa, Takuma, Teraoka, Teruki, Ueta, Yukiko, Kihara, Yoshifumi, Moritoki, Hideji, Tono, Tatsuo, Musashi, Mio, Tada, Takashi, Fujikawa, Seiji, Takahasi, Masamitu, Bell, Gavin R., Shimoda, Masahiko and Tsukamoto, Shiro (2011) Surface study of organopalladium molecules on S-terminated GaAs. physica status solidi (c), Vol.8 (No.2). pp. 405-407. doi:10.1002/pssc.201000436 ISSN 1862-6351.
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Official URL: http://dx.doi.org/10.1002/pssc.201000436
Abstract
Organopalladium species ({Pd}) immobilized on an Sterminated GaAs substrate (S/GaAs) effectively catalyzes C-C bond formation in the Mizoroki-Heck reaction with cycle durability. However, the immobilizing mechanism of {Pd} is unknown. In this study, we deposited Pd(OCOCH3)2 on S/GaAs in two different methods, namely dry-physical vapor-deposition and wetchemical deposition, and compared the catalytic activities in the Mizoroki-Heck reaction.
Also, S-termination and {Pd}-immobilization on GaAs grains were performed by the wet-chemical method to monitor the change in the surface chemical structure during the preparation process with diffuse reflectance Fourier transform infrared spectroscopy (FT-IR). FT-IR measurements implied that the immobilization of catalytic active {Pd} was related to the OH groups on the S-terminated surface. {Pd}-S/GaAs prepared dryphysically showed poor catalytic activity, because {Pd} was not immobilized under absence of OH groups. (© 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics Q Science > QD Chemistry |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Library of Congress Subject Headings (LCSH): | Organometallic chemistry, Organopalladium compounds, Surfaces (Technology) -- Analysis, Gallium arsenide | ||||
Journal or Publication Title: | physica status solidi (c) | ||||
Publisher: | Wiley - V C H Verlag GmbH & Co. KGaA | ||||
ISSN: | 1862-6351 | ||||
Official Date: | February 2011 | ||||
Dates: |
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Volume: | Vol.8 | ||||
Number: | No.2 | ||||
Page Range: | pp. 405-407 | ||||
DOI: | 10.1002/pssc.201000436 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Description: | Special Issue: 37th International Symposium on Compound Semiconductors (ISCS 2010) |
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Funder: | Kagaku Gijutsu Shinkō Kikō [Japan Science and Technology Agency] (JST) |
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