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Inclusion-Water-Cluster in a Three-Dimensional Superlattice of Gold Nanoparticles

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journal contribution
posted on 23.06.2004, 00:00 by Suhua Wang, Hiroshi Yao, Seiichi Sato, Keisaku Kimura
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.