Preparation of Partially Poisoned Alkanethiolate-Capped Platinum Nanoparticles for Hydrogenation of Activated Terminal Alkynes.

ABSTRACT: Stable and isolable alkanethiolate-stabilized Pt nanoparticles (PtNP) were synthesized using the two-phase thiosulfate method with sodium S-alkylthiosulfate as ligand precursor. The mechanistic formation of octanethiolate-capped PtNP (Pt-SC₈) from both sodium S-octylthiosulfate and 1-octanethiol ligands was investigated by using ¹H NMR and UV-vis spectroscopies, which revealed the formation of different Pt complexes as the reaction intermediates. The synthesis using S-octylthiosulfate ligand precursor produced Pt-SC₈ in higher yields than that using 1-octanethiol ligand. The obtained nanoparticles were characterized by ¹H NMR, UV-vis spectroscopy, infrared spectroscopy (IR), thermogravimetric analysis, and transmission electron microscopy (TEM).

SUBMITTER: San KA 

PROVIDER: S-EPMC5364944 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature