Search results
Results from the WOW.Com Content Network
Delocalizing the radical ion stabilizes the transition state structure. As a result, the energy of activation decreases, enhancing the rate of the overall reaction. According to the captodative effect, the rate of a reaction is the greatest when both the EDG and EWG are able to delocalize the radical ion in the transition state structure. [7]
An electron donating group (EDG) or electron releasing group (ERG, Z in structural formulas) is an atom or functional group that donates some of its electron density into a conjugated π system via resonance (mesomerism) or inductive effects (or induction)—called +M or +I effects, respectively—thus making the π system more nucleophilic.
For example, in a normal-demand scenario, a diene bearing an electron-donating group (EDG) at C1 has its largest HOMO coefficient at C4, while the dienophile with an electron withdrawing group (EWG) at C1 has the largest LUMO coefficient at C2. Pairing these two coefficients gives the "ortho" product as seen in case 1 in the figure below.
Research Papers in Economics (RePEc) is a collaborative effort of hundreds of volunteers in many countries to enhance the dissemination of research in economics. The heart of the project is a decentralized database of working papers , preprints , journal articles, and software components. [ 1 ]
The Energy Watch Group (EWG) is an international network of scientists and parliamentarians. The EWG conducts research and publishes studies on global energy developments concerning both fossil fuels and renewables. The organization states that it seeks to provide energy policy with objective information. [1]
The Delaware judge considering whether a vote by Tesla shareholders reinstated Elon Musk's $56 billion pay package which the court had voided will try to issue a ruling this year, according to the ...
Yet Jansen is young for a free agent catcher and will try to sell suitors on the fact that just two years ago, he was a 3-win player with an .855 OPS. SIGNED: One year, $8.5 million with Rays, Dec. 6.
Syrian opposition forces have taken control of much of the country’s second-largest city Aleppo after a lightning advance that killed dozens of government soldiers in a major challenge to ...