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利用Ab Initio理論計算探討Li_4O, Na_4O異構物轉換過程的結構及能量變化

Ab Initio Theoretical Calculations for Energetics of Structure Inter-conversion in Li_4O and Na_4O Molecules

摘要


Li_4O的T_d結構轉換成C_(2v)異構物時,其能量障礙經由a b initio的理論計算(MP4/6-31G°)為17.8kcal/mol,而Na_4O的T_d,結構轉換成C_(2v)異構物時,其能量障礙則為19.4 kcal/mol。其轉換過程的過渡狀態(transition state) 皆為C_s 結構。在整個相互轉化過程中,各結構間的鍵長、強度及電荷分布的變化,均有詳細的探討。

並列摘要


The inter-conversion energy barrier for stable T_d structure of Li_4O to C_(2v) is calculated by ab initio theoretical method (MP4/6-31G°) to be 17.8 kcal/mol; while Na_4O molecule needs 19.4 kcal/mol for the similar process to take place. The variations of bond length, bond strength and electron population during the process of conversion are discussed in detail.

並列關鍵字

Ab Initio Energetics Structure Inter-conversion Li_4O Na_4O

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