TY - JOUR
T1 - Mass distributions of negative cluster ions of sodium oxide
AU - Nakajima, Atsushi
AU - Sugioka, Tsuneyoshi
AU - Hoshino, Kuniyoshi
AU - Kaya, Koji
N1 - Funding Information:
The financial support from Grant-in-Aid for Scientific Researchf or Priority Area by the Ministry of Education is greatly acknowledged. We greatly acknowledge Mr. T. Kishi and Mr. T. Naganuma for their technical advice.
PY - 1992
Y1 - 1992
N2 - Negative cluster ions of sodium oxide, NanO−m (m = 1 and 2), were generated by laser vaporization of a sodium rod, and their mass distribution was measured. In the mass spectra, a number of intense peaks compared to neighbors were observed; in NanO−1, the “magic numbers” were observed at n = 9, 21, 27, 35, 41, and 59, and in NanO−2, they were observed at n = 11, 17, 23, 29, 37, 43, and 61. Compared with the magic numbers predicted by the jellium shell model, two and four sodium atoms are increased for the magic numbers by adding one and two oxygen atom(s), respectively. Therefore, it is concluded that (1) no valence electrons of oxygen atoms contribute to form the electronic shells of clusters, and that (2) two sodium atoms in the NanO−m clusters are bound by one oxygen atom, forming an Na2O unit as a spectator.
AB - Negative cluster ions of sodium oxide, NanO−m (m = 1 and 2), were generated by laser vaporization of a sodium rod, and their mass distribution was measured. In the mass spectra, a number of intense peaks compared to neighbors were observed; in NanO−1, the “magic numbers” were observed at n = 9, 21, 27, 35, 41, and 59, and in NanO−2, they were observed at n = 11, 17, 23, 29, 37, 43, and 61. Compared with the magic numbers predicted by the jellium shell model, two and four sodium atoms are increased for the magic numbers by adding one and two oxygen atom(s), respectively. Therefore, it is concluded that (1) no valence electrons of oxygen atoms contribute to form the electronic shells of clusters, and that (2) two sodium atoms in the NanO−m clusters are bound by one oxygen atom, forming an Na2O unit as a spectator.
UR - https://www.scopus.com/pages/publications/0000468413
UR - https://www.scopus.com/pages/publications/0000468413#tab=citedBy
U2 - 10.1016/0009-2614(92)85231-X
DO - 10.1016/0009-2614(92)85231-X
M3 - Article
AN - SCOPUS:0000468413
SN - 0009-2614
VL - 189
SP - 455
EP - 459
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 4-5
ER -