Results 1 to 10 of about 19,361 (95)

3D QSAR based on conceptual DFT molecular fields: Antituberculotic activity [PDF]

open access: yesComputational and Theoretical Chemistry, 2010
Abstract We describe the use of conceptual DFT based quantum chemical molecular fields for three-dimensional quantitative structure–activity relations (3D QSARs) and compare this new approach with the use of the default molecular property fields. The use of the new molecular fields in 3D QSAR is investigated by an application in the field of drug ...
Sofie Van Damme, Patrick Bultinck
exaly   +2 more sources

Conceptual DFT and Excited States

open access: yes, 2022
5.1 Introduction Conceptual density functional theory (DFT) [1-3], by its explicit dependence over the first Hohenberg-Kohn theorem [4], is a ground state theory. Therefore, the very purpose of this chapter may then seem out of scope of conceptual DFT. How can one include excited states in a ground state only representation? And for which aim?
Frédéric Guegan   +2 more
exaly   +2 more sources

Conceptual DFT-Based Computational Peptidology of Marine Natural Compounds: Discodermins A–H

open access: yesMolecules, 2020
A methodology based on the concepts that arise from Density Functional Theory named Conceptual Density Functional Theory (CDFT) was chosen for the calculation of some global and local reactivity descriptors of the Discodermins A-H family of marine peptides through the consideration of the KID (Koopmans in DFT) technique that was successfully used in ...
Norma Flores-Holguin   +2 more
exaly   +4 more sources

Dienophilic reactivity of 2-phosphaindolizines: a conceptual DFT investigation

open access: yesBeilstein Journal of Organic Chemistry, 2022
The >C=P– or –N=P– functionality in 1,3-azaphospholo[1,5- a ]pyridine, named as 2-phosphaindolizine and its 1- and 3-aza derivatives act as dienophiles and undergo Diels–Alder reactions with 1,3-dienes. However, the dienophilic reactivity is affected by the nature of the substituent groups
Nosheen Beig   +2 more
openaire   +3 more sources

Dissolution of Alumina in Cryolite Melts: A Conceptual DFT Study

open access: yesTurkish Journal of Physics, 2022
Interactions between alumina and cryolite clusters were investigated using chemical reactivity descriptors based on conceptual DFT such as global hardness, η, global softness, S, fukui functions, f, and local softness, s. Hard and Soft Acids and Bases (HSAB) Principle was applied for identifying clusters that are most likely to interact with alumina ...
Özen, Alimet Sema, Akdeniz, Zehra
openaire   +2 more sources

A bird's-eye view of density-functional theory [PDF]

open access: yes, 2006
This paper is the outgrowth of lectures the author gave at the Physics Institute and the Chemistry Institute of the University of Sao Paulo at Sao Carlos, Brazil, and at the VIII'th Summer School on Electronic Structure of the Brazilian Physical Society.
Capelle, Klaus
core   +4 more sources

Applications of the Conceptual Density Functional Theory Indices to Organic Chemistry Reactivity [PDF]

open access: yes, 2016
Indexación: Web of ScienceTheoretical reactivity indices based on the conceptual Density Functional Theory (DFT) have become a powerful tool for the semiquantitative study of organic reactivity.
Domingo, Luis R.   +2 more
core   +2 more sources

Minimum Magnetizability Principle [PDF]

open access: yes, 2006
A new electronic structure principle, viz. the minimum magnetizability principle (MMP) has been proposed and also has been verified through ab initio calculations, to extend the domain of applicability of the conceptual density functional theory (DFT) in
Chattaraj, Pratim Kumar   +3 more
core   +2 more sources

Generic Subsequence Matching Framework: Modularity, Flexibility, Efficiency [PDF]

open access: yes, 2012
Subsequence matching has appeared to be an ideal approach for solving many problems related to the fields of data mining and similarity retrieval. It has been shown that almost any data class (audio, image, biometrics, signals) is or can be represented ...
A. Guttman   +9 more
core   +3 more sources

The linear response kernel of conceptual DFT as a measure of aromaticity

open access: yesPhysical Chemistry Chemical Physics, 2012
We continue a series of papers in which the chemical importance of the linear response kernel χ(r,r') of conceptual DFT is investigated. In previous contributions (J. Chem. Theory Comput. 2010, 6, 3671; J. Phys. Chem. Lett. 2010, 1, 1228; Chem. Phys. Lett.
Sablon, Nick   +3 more
openaire   +4 more sources

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