TY - JOUR
T1 - Magic numbers of gold clusters stabilized by PVP
AU - Tsunoyama, Hironori
AU - Tsukuda, Tatsuya
PY - 2009/12/30
Y1 - 2009/12/30
N2 - (Figure Presented) We applied matrix-assisted laser desorption/ionization (MALDI) for mass analysis of Au clusters stabilized by poly(vinyl-pyrrolidone) (PVP) and discovered a series of magic numbers for Au cluster size: 35 ± 1, 43 ± 1, 58 ± 1, 70 ± 3, 107 ± 4, 130 ± 1, and 150 ± 2. Magic numbers smaller than ∼70 agree with those of free Au clusters and can be explained qualitatively by the electronic shell model. In contrast, magic numbers larger than ∼100 are obviously different from those of the free clusters. We suggest that the deviation from the electronic shell model is due to perturbation of the electronic and/or geometric structures caused by interaction with PVP.
AB - (Figure Presented) We applied matrix-assisted laser desorption/ionization (MALDI) for mass analysis of Au clusters stabilized by poly(vinyl-pyrrolidone) (PVP) and discovered a series of magic numbers for Au cluster size: 35 ± 1, 43 ± 1, 58 ± 1, 70 ± 3, 107 ± 4, 130 ± 1, and 150 ± 2. Magic numbers smaller than ∼70 agree with those of free Au clusters and can be explained qualitatively by the electronic shell model. In contrast, magic numbers larger than ∼100 are obviously different from those of the free clusters. We suggest that the deviation from the electronic shell model is due to perturbation of the electronic and/or geometric structures caused by interaction with PVP.
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U2 - 10.1021/ja908188f
DO - 10.1021/ja908188f
M3 - Article
C2 - 19968278
AN - SCOPUS:73249149276
SN - 0002-7863
VL - 131
SP - 18216
EP - 18217
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 51
ER -