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electron withdrawing group sentence in Hindi

"electron withdrawing group" meaning in Hindielectron withdrawing group in a sentence
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  • Unsuitable alkenes are tetrasubstituted alkenes and alkenes with strongly electron withdrawing groups.
  • For electron withdrawing groups the double bonds of the product avoid the substituents.
  • Despite nonlinearity in benzylic SN2 reactions, electron withdrawing groups could either accelerate or retard the reaction.
  • If there is an electron withdrawing group on the substituent, then it decreases the rate of migration.
  • Electron withdrawing groups such as fluorine increase rate by decreasing LUMO energy and the HOMO-LUMO gap.
  • The carbon atom of a carbonyl bears a partial positive charge enhanced by neighboring electron withdrawing groups like carbonyl itself.
  • Studies have shown that the selectivity can also be changed by the presence of electron donating and electron withdrawing groups.
  • Electron donating groups ( EDG ) favor the norcaradiene, while electron withdrawing groups ( EWG ) favor the cycloheptatriene.
  • The Buchner ring expansion is encouraged to open to the desired product by placing electron withdrawing groups on the carbon added.
  • The para-substituted phenyl methanols conform that electron withdrawing groups help to stabilize the negative charge built up in the carbanionic intermediate.
  • Lithiation often occurs at a position ? to electron withdrawing groups, since they are good at stabilizing the electron-density of the anion.
  • With three electron withdrawing groups, the negative charge in the complex is located at one of the nitro groups according to the quinoid model.
  • The molecular orbitals of electron withdrawing groups at C7 overlap with the HOMO Walsh orbitals of the cyclopropane ring causing a shortening of the C1-C6 bond.
  • In real applications the CX4 atoms would need to be defined more precisely to prevent matching against electron withdrawing groups such as CF3 that would render the amine insufficiently basic to protonate at physiological pH.
  • The same dienes were shown to react in both [ 6 + 4 ] and [ 4 + 2 ] cycloadditions when the reacting tropone has at least one electron withdrawing group ( EWG ).
  • If the nucleophile is negatively charged ( e . g . cyanide ) the electron withdrawing group will increase the rate due to stabilization of the extra charge which is put on the carbon in the transition state.
  • The presence of one moderate electron withdrawing group ( bromine atom ) and two moderate donating groups ( alkyl substituents ) are responsible for bromothymol blue's active indication range from a pH of 6.0 to 7.6.
  • On the other hand, if the nucleophile is not charged ( e . g . triphenylphosphine ), electron withdrawing group is going to slow down the reaction by decreasing the electron density in the anti bonding orbital of leaving group in the transition state.
  • If a substituent on the ?-carbon is sufficiently electron withdrawing, the nucleophile will add " anti-" relative to the electron withdrawing group, even if the substituent is not the largest of the 3 bonded to the ?-carbon.
  • When they possess an electron withdrawing group and an electron donating group at opposite ends of the resonance structure, they have a large shift in charge distribution across the molecule, which causes the solvent molecules to reorient to a less energetic arrangement, called solvent relaxation.
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