نتایج جستجو برای: non covalent interaction

تعداد نتایج: 1829141  

Journal: :Dalton transactions 2015
Aurelia Falcicchio Sten O Nilsson Lill Filippo M Perna Antonio Salomone Donato I Coppi Corrado Cuocci Dietmar Stalke Vito Capriati

The first structure of an aromatic bis(trifluoroborate) dipotassium salt, elucidated by the combination of crystallography, DFT calculations, topological and non-covalent interaction analysis, discloses a 3D network undergoing spontaneous self-assembly thanks to the massive participation of weak intra- and intermolecular interactions for which fluorine atoms proved to play a leading role.

Journal: :Organic & biomolecular chemistry 2011
R Fernando Martínez Martín Ávalos Reyes Babiano Pedro Cintas José L Jiménez Juan C Palacios Esther M S Pérez

The conformational population of Z and E isomers of the amide bond in N-acetyl oxazolidines is dictated by the electronic nature of the vicinal aryl ring. Experimental and theoretical data support a rationale based on a strong and stereodirecting charge-charge interaction that should be added to the arsenal of non-covalent interactions and whose influence can be more important than once thought.

Journal: :Chemical communications 2012
Thao P N Ngo Wei Zhang Wen Wang Zhi Li

Reversible clusters of nanobiocatalysts are developed via non-covalent interaction among enzyme-bound iron oxide magnetic nanoparticles. Dissociation of the clusters by shaking during biotransformation enables high catalytic performance, and re-clustering by stopping shaking after reaction allows for easy magnetic separation. The novel concept is demonstrated with alcohol dehydrogenase RDR for ...

2009
Lian-Qiang Wei Ming-Hua Zeng Seik Weng Ng

The dinuclear title compound, [Pb(2)(C(6)H(8)O(4))(NO(3))(2)(C(19)H(13)N(5))(2)], lies with the mid-point of the butyl chain of the bridging adipate unit on a center of inversion. The Pb(II) ion is covalently bonded to the nitrate anion and is bonded to a carboxyl-ate group of the adipate unit by another covalent bond. The N-heterocycle functions in a chelating tridentate mode. The metal atom e...

Journal: :The Journal of antibiotics 1990
S J Morris D E Thurston T G Nevell

An HPLC assay is described that can be used to study the covalent bonding interaction of carbinolamine-containing pyrrolo[2,1-c][1,4]benzodiazepines with the model nucleophile thiophenol, in order to evaluate electrophilicity at the C-11-position. Preliminary experiments with anthramycin, tomaymycin and neothramycin show that their reaction with thiophenol follows second-order kinetics, but the...

Journal: :Journal of Molecular Structure 2022

The solvothermal synthesis and crystal structure of [bis(thiocyanato-?N)bis(tris(pyridin-2-yl-?N)amine)iron(II)] ( 1 ) are described. obtained was i subjected to theoretical analysis interaction energies intra- intermolecular bonding. This comprehensive study illustrates the richness non-covalent interactions that exhibited by nitrile anionmetal complexes. neutral complex lies on a crystallogra...

Journal: :Molecules 2015
Hezekiel Mathambo Kumalo Soumendranath Bhakat Mahmoud E S Soliman

he present art of drug discovery and design of new drugs is based on suicidal irreversible inhibitors. Covalent inhibition is the strategy that is used to achieve irreversible inhibition. Irreversible inhibitors interact with their targets in a time-dependent fashion, and the reaction proceeds to completion rather than to equilibrium. Covalent inhibitors possessed some significant advantages ov...

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