title: Inclusion-water-cluster in a three-dimensional superlattice of gold nanoparticles.
abstract: Three-dimensional particle crystals made of dicarboxylic thiolate (MSA)-stabilized gold nanoparticles were formed at an air/water interface. FTIR spectra of this supracrystal showed that three well-resolved peaks existed from 3400 to 3550 cm-1 just falling in a region of OH stretching vibrational mode. Precise analysis showed that all these peaks originated from the water cluster included in the interstice of a particle crystal.
authors.affiliation: Department of Material Science, Himeji Institute of Technology, 3-2-1 Kohto, Kamigori-cho, Akou-gun, Hyogo 678-1297, Japan.
authors.forename: Suhua
authors.initials: S
authors.lastname: Wang
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Yao
authors.forename: Seiichi
authors.initials: S
authors.lastname: Sato
authors.forename: Keisaku
authors.initials: K
authors.lastname: Kimura