کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5418394 | 1506962 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structures of the small Tin (n = 2-5) clusters: A DFT study
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
A density functional method BPBE with pseudo-potential basis set CEP-121G is selected from different DFT methods to study Tin (n = 2-5) clusters. The stable geometries with different spins are determined. Ti dimer has a ground 3Îg state with bond length of 1.943 Ã
. The ground state structure of Ti trimer is an isosceles triangle (C2v). For Ti tetramer and pentamer, the ground state structures are distorted tetrahedron (D2d) and triangular bipyramid (C2v), respectively. For the ground states of Ti2â5 clusters, the natural bond orbital analysis is performed, and then we find the distribution of the unpaired electrons. Our results also show that the 4s orbital hybridizes with the 3d orbital. For the ground states, the vibrational spectra are gotten and the vibrational modes corresponding to the maximal IR peaks are determined.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure: THEOCHEM - Volume 817, Issues 1â3, 1 September 2007, Pages 47-53
Journal: Journal of Molecular Structure: THEOCHEM - Volume 817, Issues 1â3, 1 September 2007, Pages 47-53
نویسندگان
Jiguang Du, Hongyan Wang, Gang Jiang,