Formation of Pdn(SR)m clusters (n < 60) in the reactions of PdCl2 and RSH (R = n-C18H37, n-C12H25)

Yuichi Negishi, Haruno Murayama, Tatsuya Tsukuda

研究成果: Contribution to journalArticle査読

30 被引用数 (Scopus)

抄録

Mass spectroscopic analysis revealed that Pd clusters passivated by thiolates and the stoichiometric thiolate complexes, Pdn=(SR)2n (n = 5; 6), are formed in the reactions between palladium chloride and n-alkanethiols (RSH: R = n-C18H37, n-C12H25) in toluene. The Pd clusters thus formed are formulated as Pdn(SR)m with m ∼ 0.6n. The cluster sizes, distributed in the range of 5 ≤ n ≤ 60, are consistent with their core diameters of ∼ 1 nm observed by TEM. A gap of ∼ 2 eV was observed in the optical transition of the Pdn(SR)m clusters showing the emergence of non-metallic properties as a result of size reduction.

本文言語英語
ページ(範囲)561-566
ページ数6
ジャーナルChemical Physics Letters
366
5-6
DOI
出版ステータス出版済み - 12 20 2002

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)
  • 物理化学および理論化学

フィンガープリント

「Formation of Pd<sub>n</sub>(SR)<sub>m</sub> clusters (n < 60) in the reactions of PdCl<sub>2</sub> and RSH (R = n-C<sub>18</sub>H<sub>37</sub>, n-C<sub>12</sub>H<sub>25</sub>)」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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