title: A new 19-metal-atom cluster [(Me2PhP)10Au12Ag7(NO3)9] with a nearly staggered-staggered M5 ring configuration.
abstract: New mixed metal clusters with M19 metal frameworks have been synthesized by NaBH4 reduction of Au(NO3)(PMe2Ph) together with AgNO3 in ethanol. Single crystal X-ray diffraction has revealed Au12Ag7 and Au17Ag2 metal skeletons for these clusters, which are best described in terms of bicapped pentagonal antiprismatic cages with a staggered-staggered M(5) ring configuration. These clusters connect the missing link between M13 icosahedral and M25 biicosahedral clusters providing a view of the cluster growth process. A TEM image of this cluster has been observed, which has clearly demonstrated single-sized nano-particles of less than 1.0 nm.
authors.affiliation: Department of Environmental Technology, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan.
authors.forename: Keiko
authors.initials: K
authors.lastname: Nunokawa
authors.forename: Mitsuhiro
authors.initials: M
authors.lastname: Ito
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Sunahara
authors.forename: Satoru
authors.initials: S
authors.lastname: Onaka
authors.forename: Tomoji
authors.initials: T
authors.lastname: Ozeki
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Chiba
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Funahashi
authors.forename: Hideki
authors.initials: H
authors.lastname: Masuda
authors.forename: Tetsu
authors.initials: T
authors.lastname: Yonezawa
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Nishihara
authors.forename: Masami
authors.initials: M
authors.lastname: Nakamoto
authors.forename: Mari
authors.initials: M
authors.lastname: Yamamoto
mesh_terms: D018360:Crystallography, X-Ray; D006046:Gold / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission / Q000379:methods; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D012680:Sensitivity and Specificity; D012834:Silver / Q000737:chemistry*; D013053:Spectrophotometry / Q000379:methods; D014965:X-Rays
chemical_list: D009942:Organometallic Compounds; D012834:Silver; D006046:Gold