演題概要

ポスター発表

第3日　5月17日（水）　　P会場（ホワイエ，会議室1004-1007）

3P-32　　PDF

金属酸化物クラスターのイオン移動度質量分析 － ３族元素酸化物の場合

(¹東北大院理・ ²東北大理)
^o美齊津文典¹・ 戴方聞¹・ 平井創太²・ 三竿洋太朗¹・ 中島優斗¹・ 坂倉広也¹・ 大下慶次郎¹

Stable compositions and geometrical structures were examined for oxide cluster ions of group 3 metal elements (Sc, Y, La) by ion mobility-mass spectrometry combined with quantum chemical calculations. As stable compositions of M_nO_m⁺ cluster ions, the following species were dominantly observed in the mass spectra: MO(M₂O₃)_x⁺ and MO₂(M₂O₃)_x⁺ for odd number of M atoms [n = 2x+1], and (M₂O₃)_x⁺ and O(M₂O₃)_x⁺ for even number of M [n = 2x]. The M₆O₉⁺ ions have stable structures in which one O atom locates outside the octahedral M₆O₉ unit for M = Sc and Y, whereas the excess O atom was inside the unit for M = La.