Results 81 to 90 of about 36,653 (344)

Storing the wisdom: chemical concepts and chemoinformatics [PDF]

open access: yes, 2018
The purpose of the paper is to examine the nature of chemical concepts, and the ways in which they are applied in chemoinformatics systems. An account of concepts in philosophy and in the information sciences leads to an analysis of chemical concepts ...
David Bawden
core   +1 more source

Sphericity governs both stereochemistry in a molecule and stereoisomerism among molecules.

open access: yesThe chemical record, 2002
The concept of sphericity and relevant fundamental concepts that we have proposed have produced a systematized format for comprehending stereochemical phenomena. Permutability of ligands in conventional approaches is discussed from a stereochemical point
S. Fujita
semanticscholar   +1 more source

Photochemical Approaches to Complex Chemotypes: Applications in Natural Product Synthesis. [PDF]

open access: yes, 2016
The use of photochemical transformations is a powerful strategy that allows for the formation of a high degree of molecular complexity from relatively simple building blocks in a single step. A central feature of all light-promoted transformations is the
Kärkäs, Markus D.   +2 more
core   +2 more sources

A companion to the preclinical common data elements for proteomics, lipidomics, and metabolomics data in rodent epilepsy models. A report of the TASK3‐WG4 omics working group of the ILAE/AES joint translational TASK force

open access: yesEpilepsia Open, EarlyView., 2022
Abstract The International League Against Epilepsy/American Epilepsy Society (ILAE/AES) Joint Translational Task Force established the TASK3 working groups to create common data elements (CDEs) for various preclinical epilepsy research disciplines.
Laura Bindila   +11 more
wiley   +1 more source

The role of stereochemistry of antibiotic agents in the development of antibiotic resistance in the environment

open access: yesEnvironment International, 2020
Antibiotic resistance (ABR) is now recognised as a serious global health and economic threat that is most efficiently managed via a ‘one health’ approach incorporating environmental risk assessment.
Felicity C.T. Elder   +4 more
doaj  

A novel type of stereoisomerism in calix[4]arene-based carceplexes

open access: yes, 1994
Different orientations of the guest in the cavity of a carcerand lead to a new type of stereoisomerism, “carceroisomerism”. The structure of the host–guest compound (which is shown on the cover of this issue) and its dynamic behavior was studied in ...
P. Timmerman   +4 more
semanticscholar   +1 more source

Isomerism as Manifestation of Intrinsic Symmetry of Molecules: Lunn–Senior’s Theory [PDF]

open access: yes, 2009
This article presents the principal results of the doctoral thesis “Isomerism as internal symmetry of molecules” by Valentin Vankov Iliev (Institute of Mathematics and Informatics), successfully defended before the Specialised Academic Council for ...
Iliev, Valentin
core  

Antiferromagnetic spin chain behavior and a transition to 3D magnetic order in Cu(D,L-alanine)2: Roles of H-bonds

open access: yes, 2016
We study the spin chain behavior, a transition to 3D magnetic order and the magnitudes of the exchange interactions for the metal-amino acid complex Cu(D,L-alanine)2.H2O, a model compound to investigate exchange couplings supported by chemical paths ...
Calvo, Hernan L.   +4 more
core   +1 more source

Induced Chirality and Vibrational Optical Activity in an Ionic‐Liquid Anion

open access: yesAngewandte Chemie International Edition, EarlyView.
Chirality can be induced in an ionic liquid anion. Normally, the enantiomeric conformers are equally populated, and no optical activity is observed. However, if a chiral probe molecule (e.g., propylene oxide) is added, a non‐symmetric redistribution of the conformers occurs, chirally imprinting the ionic liquid.
Tom Frömbgen   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy