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Sponsored by the Center for Science and Technology Development of the Ministry of Education
Supervised by Ministry of Education of the People's Republic of China
The structures and stabilities of XSin-1- and X2Sin-2 (X = P, As) clusters have been investigated at the B3LYP level of theory, incorporating the 6-311+G* basis set. The results indicated that the ground state structures of PSin-1-/AsSin-1-/As2Sin-2 (isolobal to Sin2- and BnHn2-) could be obtained by the wade’s (2n+2) rule. Based on our computation study, the applicability of the design principle, wade’s (2n+2) rule, was further confirmed by exploring the lower-energy isomers of small P2Sin-2 (n = 5-9) clusters. The Wade’s (2n+2) rule should be very promising for predicting and rationalizing the stable structures of heteroatom-doped silicon clusters.
Keywords:As-doped silicon cluster; P-doped silicon cluster; Structure; Wade's (2n +2) rule; Density functional theory