نتایج جستجو برای: first principle

تعداد نتایج: 1560535  

2011
Gui-Xian Ge Hong-Xia Yan Qun Jing Hai-Bin Cao Jian-Jun Zhang

The geometries, stabilities, electronic, and magnetic properties of AunScm (n= 1–7, m=1,2) clusters have been systematically investigated by density functional theory. It is shown that the most stable structures of AunSc (n=1–7) clusters favor planar structure and Sc atom is prone to occupy the center site of Au atoms ring. For AunSc2 clusters, the 3d configurations become the lowest energy str...

Journal: :Theoretical Chemistry Accounts 2005

Journal: :Computational and Theoretical Chemistry 2022

In this paper, we report a new boron nitride molecular structure called BN-nanobelt, an inorganic analog of (12) cyclophenacene synthesized in 2017. An extensive investigation using Density Functional Theory (DFT) and Quantum Molecular Dynamics (QMD) calculations showed that BN-nanobelt is structurally thermally stable molecule with all positive vibrational frequencies. behaves as insulator, it...

Journal: :Journal of Microelectromechanical Systems 1996

Journal: :Journal of the Royal Statistical Society 1914

Journal: :Communications in Physics 2012

2003
STEVEN MILLER JONATHAN TENNYSON

Since its spectrum was first observed by Oka (I) and Shy et al. (2) in 1980, H: and its isotopomers have excited considerable interest among experimental spectroscopists and theoretical chemists alike. All the infrared-allowed fundamentals of the ions have been characterized (3-8). The microwave spectrum of H2D+ has tentatively been observed in the interstellar gas cloud NGC 2264. At the same t...

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