نتایج جستجو برای: electron density

تعداد نتایج: 685167  

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2005

Journal: :Acta Crystallographica Section A Foundations of Crystallography 1981

Journal: :physical chemistry and electrochemistry 0

in a typical solitonic distribution, the soliton density is distributed over the entire moleculeand the present work shows how its density can be decomposed into solitonic and antisolitoniccomponents. it is found that there exists a unique electron as soliton over the anionicnanoconductor, while there are many other solitons and antisolitons. the solitonic states are furtherdecomposed to the ca...

Journal: :journal of physical and theoretical chemistry 0
atefe nejati department of physics, computational physics lab., qom branch, islamic azad university, qom, iran hasan tashakori department of physics, computational physics lab., qom branch, islamic azad university, qom, iran faramarz kanjouri faculty of physics, kharazmi university, tehran, iran amirhosein esmailian department of physics, computational physics lab., qom branch, islamic azad university, qom, iran

in this work we use density functional theory based on the ultra-soft pseudo-potential to calculate thestructural, mechanical and thermal properties of narrow single walled bn, aln and gan nanotubes.the electron-electron interactions were expressed within the local density approximation (lda). wehave also obtained the phonon dispersion and elastic constants of these nanotubes using the densityf...

Journal: :Acta Crystallographica Section A Foundations of Crystallography 1987

Journal: :Acta Crystallographica Section A Foundations of Crystallography 1981

Journal: :iranian chemical communication 2014
pouya karimi mahmoud sanchooli

stability of the π-π stacking interactions in the ben||n-substituted-coronene complexes was studied using the computational quantum chemistry methods (where ben is benzene and || denotes π-π stacking interaction, and n-substituted-coronene is coronene molecule which substituted with different number of n atoms). the results reveal simultaneous effects of structure and number of heteroatom on th...

Journal: :Journal of Geophysical Research 2004

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