نتایج جستجو برای: qtaim
تعداد نتایج: 368 فیلتر نتایج به سال:
Detailed structural and noncovalent interactions in two thiazole derivatives (N-(4-Bromophenyl)-2-(methylthio)thiazole-5-carboxamide Ethyl-5-((4-bromophenyl)carbamoyl)thiazole-4-carboxylate) are investigated by single crystal X-ray diffraction study computational approaches. The structure investigation revealed that various like C-H…O, N-H…O, N-H…N hydrogen bonds Br…Br involved constructing rin...
در این پایان نامه با استفاده از روش های ab initio در سطح محاسباتی( mp2/6-31++g(d,p ابتدا خواص مجزای مولکول های اتانول و متانول و همچنین کربن دی سولفید و استون و سپس کمپلکس دوتایی آن ها مورد بررسی قرار گرفته با استفاده از تئوری qtaim، دانسیته الکترونی کل کمپلکس جهت محاسبه آنچه که به آن حجم مولکول در کمپلکس نامیده می شود، مورد استفاده قرار می گیرد. در نهایت حجم مولکولی هر یک از مولکول های اتانول،...
This study focuses on RR, SS and RS medetomidine (MM) and inclusion of several achiral acids to distinguish which acid can help conglomerate formation instead of crystallizating racemic mixtures by defining the low-lying energy of their structures. Favorable orientation of acids was determined in interaction with the MM enantiomers after optimization. The most noticeable interactions include hy...
The interactions between N-hydroxyurea (NHU) as anticancer drug and SWCNTs (pure and Fe-doped) were investigated with density functional theory. In this study, large long-range corrected CAM-B3LYP and B3LYP were employed to investigate the stability of the different NHU-CNT and NHU/Fe-CNT complexes in the gas phase and solution (water). The presence of an iron atom would create suitable space o...
Ion molecules with general chemical formula as [Li(H2O)] (n=1,2,3), have been chosen as model species toinvestigate the chemical properties of hydrated lithium cations. The RHF(SCVS)/UGBS level of calculationhas been used for obtaining equilibrium geometries and Rho(r) functions (electron density distributions). By theaid of fundamental physical theorems implemented in Quantum Theory of Atoms i...
Nonlinear optical materials have gained immense scientific interest in the recent times owing to their vast applications various fields. Continuous strides are made design and synthesize with large nonlinear response high thermodynamic stability. In this regard, we present here bi-alkali metal doping on boron phosphide nanocage as a new strategy thermodynamically stable response. The geometric,...
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