Facile Synthesis of Palladium Nanoparticles Protected with Alkanethiolates Functionalized with Organometallic Fragments

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• 作者：Mario Friederici ; Inmaculada Angurell ; Oriol Rossell ; Miquel Seco ; N煤ria J. Divins ; Jordi Llorca
• 刊名：Organometallics
• 出版年：2012
• 出版时间：January 23, 2012
• 年：2012
• 卷：31
• 期：2
• 页码：722-728
• 全文大小：463K
• 年卷期：v.31,no.2(January 23, 2012)
• ISSN：1520-6041

文摘

A synthesis of organometallic functionalized thiol-protected palladium nanoparticles (Pd NPs) is presented. The first step of the procedure consists of forming starting Pd NPs protected with two different ligands. The shorter one, hexanethiolate, is introduced to provide solubility to the system in organic solvents, and the larger is the alkane thiolate HS(CH₂)₁₁OOCC₆H₄PPh₂ (L), equipped with a terminal free phosphine group. Reaction of the latter nanoparticles, NP1, with appropriate organometallic derivatives, permitted the isolation of soluble Pd NPs displaying at the periphery the metal units PdCl(畏³-2-MeC₃H₄) (NP2), IrCl(cod) (NP3), RuCl₂(p-cymene) (NP4), RhCl(cod) (NP5), RhCl(CO) (NP6), and Rh(cod)⁺(NP7). The palladium nanoparticles were examined using NMR, FTIR, HRTEM, TGA, and XPS.