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FORMATION STEPS OF CdS CLUSTERS IN AQUEOUS SOLUTION CONTAINING 2-MERCAPTOETHANOL

Author

Listed:
  • YOSHIO NOSAKA

    (Department of Chemistry, Nagaoka University of Technology, Nagaoka, Niigata 940–21, Japan)

  • HARUO SHIGENO

    (Department of Chemistry, Nagaoka University of Technology, Nagaoka, Niigata 940–21, Japan)

  • TOMOMI IKEUCHI

    (Department of Chemistry, Nagaoka University of Technology, Nagaoka, Niigata 940–21, Japan)

Abstract

Growing steps of CdS clusters in aqueous solution containingHOCH2CH2SH(2-mercaptoethanol, RSH) was investigated by means of stopped flow optical spectroscopy and proton NMR spectroscopy. When the amount ofRS−was 4 times larger thanCd2+ions at alkaline pH, the growing cluster showed the change in the absorption peak via 242, 260, 280, 308, and 315 nm. Initial three peaks were assigned to[Cd1(SR)4]2−,[S1Cd4(SR)12]6−, and[S1Cd8(SR)16]2−, respectively. Among them, the cluster at 280 nm was very stable, comparable with the reported thiophenolate cluster[S1Cd8(SPh)16]2−. The relationship between the size and the absorption maximum for ultrasmall CdS particles reported was continuous to that obtained for the clusters in the present study.

Suggested Citation

  • Yoshio Nosaka & Haruo Shigeno & Tomomi Ikeuchi, 1996. "FORMATION STEPS OF CdS CLUSTERS IN AQUEOUS SOLUTION CONTAINING 2-MERCAPTOETHANOL," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 3(01), pages 1209-1213.
    • Handle: RePEc:wsi:srlxxx:v:03:y:1996:i:01:n:s0218625x96002187
    DOI: 10.1142/S0218625X96002187
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