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A density functional theory study of the one-dimensional alane

机译:一维烷烃的密度泛函理论研究

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摘要

The AlH1-6, Al2H1-7, Al3H1-9, AlmH3m (m = 4-10), and the periodic helical structure of the one-dimensional (1D) alane are studied by means of density functional theory calculations. The helical isolated structure is more stable than those in the corresponding cyclic and other geometries. A new periodic 1D helical alane structure is predicted for the first time. The stability of this periodic 1D helical alane structure has been confirmed by its large average binding energy based on AlH3, large energy gap of highest occupied molecular orbital and lowest unoccupied molecular orbital, and the typically double helical pi-orbital which parallels its bone structure.
机译:通过密度泛函理论计算研究了AlH1-6,Al2H1-7,Al3H1-9,AlmH3m(m = 4-10)和一维(1D)烷烃的周期性螺旋结构。螺旋形隔离结构比相应的循环和其他几何形状中的结构更稳定。首次预测了新的周期性一维螺旋铝烷结构。这种周期性的一维螺旋铝烷结构的稳定性已被其基于AlH3的大平均结合能,最高占据分子轨道和最低未占据分子轨道的大能隙以及与它的骨结构平行的典型双螺旋pi轨道所证实。

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