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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Spin transition ： ウィキペディア英語版 Spin transition The spin transition is an example of transition between two electronic states in molecular chemistry. The ability of an electron to transit from a stable to another stable (or metastable) electronic state in a reversible and detectable fashion, makes these molecular systems appealing in the field of molecular electronics. ==In octahedral surroundings== When a transition metal ion of configuration $d^$, $n=4$ to $7$, is in octahedral surroundings, its ground state may be low spin (LS) or high spin (HS), depending to a first approximation on the magnitude of the $\backslash Delta$ energy gap between $e\_$ and $t\_$ metal orbitals relative to the mean spin pairing energy $P$ (see Crystal field theory). More precisely, for $\backslash Delta>>P$, the ground state arises from the configuration where the $d$ electrons occupy first the $t\_$ orbitals of lower energy, and if there are more than six electrons, the $e\_$ orbitals of higher energy. The ground state is then LS. On the other hand, for , Hund's rule is obeyed. The HS ground state has got the same multiplicity as the free metal ion. If the values of $P$ and $\backslash Delta$ are comparable, a LS↔HS transition may occur. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Spin transition」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.