Observation of selenium-77 nuclear magnetic resonance in octaneselenol-protected gold nanoparticles

Brian S Zelakiewicz; Tetsu Yonezawa; YuYe Tong

doi:10.1021/ja049532w

Observation of selenium-77 nuclear magnetic resonance in octaneselenol-protected gold nanoparticles

J Am Chem Soc. 2004 Jul 7;126(26):8112-3. doi: 10.1021/ja049532w.

Authors

Brian S Zelakiewicz¹, Tetsu Yonezawa, YuYe Tong

Affiliation

¹ Department of Chemistry, Georgetown University, 37th and "O" Streets NW, Washington, DC 20057,USA.

PMID: 15225041
DOI: 10.1021/ja049532w

Abstract

We report the first observation of 77Se nuclear magnetic resonance (NMR) in octaneselenol-protected Au nanoparticles of an average particle size of 2.5 nm. The 77Se NMR characteristics observed, i.e., broad line shape, fast nuclear spin-lattice, and spin-spin relaxation rates, which are reminiscent of 13C NMR of CO on transition metal surfaces, strongly suggest that Se becomes metallic upon binding to the Au nanoparticle surfaces.