溶液中均三甲苯-乙烯基硅氧烷稳定的铂纳米粒子的尺寸控制合成及核磁共振表征

Size-controlled synthesis and NMR characterization of mesitylene-vinylsiloxanes stabilized Pt nanoparticles in solution.

作者信息

Evangelisti Claudio, Raffa Patrizio, Balzano Federica, Barretta Gloria Uccello, Vitulli Giovanni, Salvadori Piero

机构信息

Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento 35, 56126 Pisa, Italy.

出版信息

J Nanosci Nanotechnol. 2008 Apr;8(4):2096-101. doi: 10.1166/jnn.2008.061.

DOI:10.1166/jnn.2008.061

PMID:18572620

Abstract

Pt nanoclusters have been generated by reaction of Pt vapour and mesitylene vapour and the role of the mesitylene/platinum ratio and the Pt particle size has been evaluated, quenching the resulting mesitylene solvated Pt atoms with 1,3-divinyltetramethyldisiloxane (DVS) as additional ligand. The Pt particle sizes have been estimated on the basis of DOSY (Diffusion-Ordered SpectroscopY) analysis and information on their structure features have been obtained by combined use of 2D NMR techniques.

摘要

通过铂蒸气与均三甲苯蒸气反应生成了铂纳米团簇，并评估了均三甲苯/铂比例和铂颗粒尺寸的作用，用1,3 - 二乙烯基四甲基二硅氧烷（DVS）作为额外配体淬灭所得的均三甲苯溶剂化铂原子。基于扩散排序光谱（DOSY）分析估算了铂颗粒尺寸，并通过联合使用二维核磁共振技术获得了有关其结构特征的信息。