Definition of steric hindrance
Websteric hindrance. noun Chemistry. the prevention or retardation of inter- or intramolecular interactions as a result of the spatial structure of a molecule. WebLiu has proposed that the Weizäcker kinetic energy can be employed as a novel definition of steric effect in DFT11,12. This density-based quantification of the steric effect differs from its conventional wavefunction-based counterpart.The latter definition is resulted only from orthogonality and exchange antisymmetry of the wavefunction (the ...
Definition of steric hindrance
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WebSterically Hindered Definition: Steric Hindrance is a phenomenon that prevents chemical reactions because of the large sized groups on the molecules.This bulky region of the molecule is therefore said to be … Webhindrance: [noun] the state of being interfered with, held back, or slowed down : the state of being hindered.
WebJan 23, 2024 · The chair conformation drawing is more favored than the boat because of the energy, the steric hindrance, and a new strain called the transannular strain. The boat conformation is not the favored conformation because it is less stable and has a steric repulsion between the two H's, shown with the pink curve. This is known as the … Websteric hindrance noun Any of several effects, most common in organic chemistry, in which the structure or reactivity of a molecule is affected by the physical size and proximity of …
WebSteric Hindrance definition: The prevention or retardation of a chemical reaction, caused by the arrangement of atoms in a molecule. WebWordReference Random House Unabridged Dictionary of American English © 2024. ster′ic hin′drance, [ Chem.] Chemistry the prevention or retardation of inter- or …
WebApr 4, 2024 · The capping agents stabilise the nanoparticles via adsorption on their surface, decreasing the surface energy and promoting repulsion forces and steric hindrance. 5,6 Numerous capping agents are used as stabilisers for AgNPs, including dextrans, PVP and trisodium citrate, with the last two being the most common ones. 7 The selection of the ...
WebHindrance definition, an impeding, stopping, preventing, or the like. See more. spedition langWebFeb 23, 2010 · The dominant steric hindrance in this system generated by interaction of the bulkiest X substituent and the ethyl group at the 3-position forces the neighboring porphyrin ring to move outward. This leads to formation of a unidirectional screw twist between two porphyrin moieties in 1-4. The induced screw architecture is a non … spedition langenfeldWebNov 28, 2016 · Steric hindrance is important for understanding regio-selectivity and stable conformation of molecules. I know the general definition, but can somebody explain to … spedition langenWebThe meaning of STERIC is relating to or involving the arrangement of atoms in space : spatial. spedition lebertWebFeb 5, 2024 · Steric Hindrance is the spatial restriction on molecular interactions caused by the physical size and shape of the molecules. It occurs due to the … spedition langeoogWebThe steric hindrance observed between two adjacent groups may affect the torsional bond angles. The shape of the rotaxane molecule is observed because of steric hindrance. Steric hindrance is also responsible for the low racemization rates of the binaphthyl and 2, 2’-disubstituted biphenyl derivatives. spedition lechzugSteric hindrance is a consequence of steric effects. Steric hindrance is the slowing of chemical reactions due to steric bulk. It is usually manifested in intermolecular reactions, whereas discussion of steric effects often focus on intramolecular interactions. Steric hindrance is often exploited to control selectivity, such as slowing unwanted side-reactions. spedition langer