title: Application of a multi-dentate amphiphilic compound to transfer silver nanoparticles into an organic solvent.
abstract: A multi-dentate amphiphilic compound, 3,3'-(dodecylazanediyl)-bis-[N-(2-aminoethyl)propanamide] (12C-2NH2) has been synthesized. The molecular structure was characterized by Fourier transform infrared (FT-IR) spectroscopy, ultraviolet-visible (UV-vis) spectra, nuclear magnetic resonance (NMR) spectra, and fast atom bombardment mass (FAB-MS) spectra. 12C-2NH2 was employed to stabilize silver nanoparticles. Surface properties and stability of silver nanoparticles were controlled by adjusting the 12C-2NH2 to silver (0) molar ratio. 12C-2NH2 was also applied to transfer silver nanoparticles from an aqueous to an organic phase. The transfer efficiency depends on 12C-2NH2 concentration. When 12C-2NH2 to silver (0) molar ratio was 2:1, the highest efficiency of phase transfer to toluene was obtained. These 12C-2NH2 stabilized silver nanoparticles are very stable over a period of four days in toluene.
authors.affiliation: College of Chemistry and Molecular Science, Wuhan University, Wuhan 430072, China.
authors.forename: Nan
authors.initials: N
authors.lastname: Gao
authors.forename: Jinfeng
authors.initials: J
authors.lastname: Dong
authors.forename: Hao
authors.initials: H
authors.lastname: Zhang
authors.forename: Xiaohai
authors.initials: X
authors.lastname: Zhou
authors.forename: Gaoyong
authors.initials: G
authors.lastname: Zhang
authors.forename: Julian
authors.initials: J
authors.lastname: Eastoe