Mass spectroscopic study of metal-rich nanoclusters

✍ Scribed by S.H. Huh; H.S. Jeong; K. Koyasu; K. Miyajima; M. Mitsui; A. Nakajima

• Book ID: 103837863
• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 246 KB
• Volume: 886
• Category: Article
• ISSN: 0022-2860
• DOI: 10.1016/j.molstruc.2007.02.011

✦ Synopsis

Metal-rich K 1À5 ðKIÞ n þ (n $27) clusters were produced by the supersonic cooling expansion of laser-induced KI plasma. The obtained mass spectroscopic peaks show the unique magic numbers at n = 9, 13, and 22 for K 1 (KI) n ; n = 8, 12, and 21 for K 2 (KI) n ; n = 8, 12, 16, and 21 for K 3 (KI) n ; n = 7, 9, 11, and 13 for K 4 (KI) n ; and n = 12 and 21 for K 5 (KI) n . These magic numbers are fairly different from those of other reported metal-rich Na 1À9 ðNaFÞ n þ and Cs 1À5 ðCsIÞ n þ clusters. It is interesting to note that K 2;3;5 ðKIÞ n þ clusters have the same magic numbers at n = 12 and 21 and possess structures that are closely related to the 3 • 3 • 3 and 3 • 3 • 5 cubic structures with the excess electron at the side anion vacancy or the center anion vacancy.