We report on the structures of aluminum hydrides derived from a tetrahedral
aluminum Al4 cluster using ab initio quantum chemical calculation. Our
calculation of binding energies of the aluminum hydrides reveals that stability
of these hydrides increases as more hydrogen atoms are adsorbed, while
stability of Al-H bonds decreases. We also analyze and discuss the chemical
bonds of those clusters by using recently developed method based on the
electronic stress tensor.Comment: 15 pages, 7 figures, published online, International Journal of
Quantum Chemistr
