Volume 22, Issue 11 pp. 1245-1249
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DFT study of dimethylaluminum azide clusters: Structures, energies, frequencies and thermodynamic properties

Qi-Ying Xia

Qi-Ying Xia

Department of Chemistry, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China

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He-Ming Xiao

Corresponding Author

He-Ming Xiao

Department of Chemistry, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China

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Xue-Hai Ju

Xue-Hai Ju

Department of Chemistry, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China

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Xue-Dong Gong

Xue-Dong Gong

Department of Chemistry, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China

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First published: 26 August 2010
Citations: 8

Abstract

DFT/B3LYP method with SDD basis set has been applied to the systems of (Me2AlN3). (n = 1–3). (Me2AlN3)2 was found to exhibit the planar Al2N2 ring structure. (Me2AlN3)3 involving a six-membered Al3N3 ring was found to exhibit two minima with very similar binding energies (-265.52 and −256.10 kJ*mol−1). Compared to the monomer, both the structural changes and charge & transfers for the clusters are large. Frequency calculations were carried out on each optimized structure and its JR spectra were discussed. Thermodynamic properties reveal that the dimer is the main component in the systems of the (Me2AlN3)n (n= 1–3).

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