Results 11 to 20 of about 3,978,643 (305)

Singularities in Molecular Conformation

open access: yesCrystal Growth & Design, 2015
The intramolecular coupling between molecular groups leads to singularities in the molecular conformation, acting like a switch in a molecular-scale rotor. This, in turn, affects the potential-energy (Ep) barriers, acquiring a sharp shape originating from superimposed Ep functions of the molecular conformers with differently coupled methyl groups.
Szymon Sobczak, Andrzej Katrusiak
openaire   +2 more sources

EC-Conf: A ultra-fast diffusion model for molecular conformation generation with equivariant consistency. [PDF]

open access: yesJ Cheminform
Despite recent advancement in 3D molecule conformation generation driven by diffusion models, its high computational cost in iterative diffusion/denoising process limits its application.
Fan Z, Yang Y, Xu M, Chen H.
europepmc   +2 more sources

Auto-Encoding Molecular Conformations

open access: yesCoRR, 2021
In this work we introduce an Autoencoder for molecular conformations. Our proposed model converts the discrete spatial arrangements of atoms in a given molecular graph (conformation) into and from a continuous fixed-sized latent representation. We demonstrate that in this latent representation, similar conformations cluster together while distinct ...
Robin Winter   +2 more
openaire   +2 more sources

CONFORMATIONAL TRANSITIONS IN MOLECULAR SYSTEMS [PDF]

open access: yesPath Integrals — New Trends and Perspectives, 2008
Proteins are the "work horses" in biological systems. In almost all functions specific proteins are involved. They control molecular transport processes, stabilize the cell structure, enzymatically catalyze chemical reactions; others act as molecular motors in the complex machinery of molecular synthetization processes.
Bachmann, Michael, Janke, Wolfhard
openaire   +2 more sources

Direct Molecular Conformation Generation

open access: yesTrans. Mach. Learn. Res., 2022
Molecular conformation generation aims to generate three-dimensional coordinates of all the atoms in a molecule and is an important task in bioinformatics and pharmacology. Previous methods usually first predict the interatomic distances, the gradients of interatomic distances or the local structures (e.g., torsion angles) of a molecule, and then ...
Jinhua Zhu 0001   +11 more
openaire   +3 more sources

Structural investigation of N-[2-(4-fluoro-3-phenoxybenzoyl)hydrazinecarbothioyl]benzamide and N-[2-(4-fluoro-3-phenoxybenzoyl)hydrazinecarbothioyl]-4-methoxybenzamide

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2021
The compound N-[2-(4-fluoro-3-phenoxybenzoyl)hydrazinecarbothioyl]benzamide, C21H16FN3O3S, crystallizes in the monoclinic centrosymmetric space group P21/c and its molecular conformation is stabilized via an intramolecular N—H...O hydrogen bond.
Dhananjay Dey   +3 more
doaj   +1 more source

Modeling of Ultrasound-Assisted Extraction, Chemical Composition, Antioxidant Activity, Rheological Aspects, and Biological Properties of “Barhang-e-Kabir” Mucilage [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2021
In this study, response surface methodology (RSM) was used to investigate the influence of independent process parameters including water to seed ratio (g/g), temperature (°C), time (min), and ultrasonic intensity (%) on the extraction yield of “Barhang ...
Behrooz Alizadeh Behbahani   +1 more
doaj   +1 more source

Molecular Information Technology [PDF]

open access: yes, 2005
Molecular materials are endowed with unique properties of unrivaled potential for high density integration of computing systems. Present applications of molecules range from organic semiconductor materials for low-cost circuits to genetically modified ...
Zauner, Klaus-Peter, Klaus-Peter Zauner
core   +1 more source

The Rotational Barrier in Ethane: A Molecular Orbital Study

open access: yesMolecules, 2012
The energy change on each Occupied Molecular Orbital as a function of rotation about the C-C bond in ethane was studied using the B3LYP, mPWB95 functional and MP2 methods with different basis sets.
Gonzalo J. Mena-Rejón   +3 more
doaj   +1 more source

Stretch-dependent changes in molecular conformation in fibronectin nanofibers. [PDF]

open access: yesBiomater Sci, 2017
Engineered fibronectin nanofibers reveal a nodular to fibrillar transformation in molecular conformation during 7-fold extension.
Szymanski JM   +3 more
europepmc   +2 more sources

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