SpletThe Ritchie equation, derived in 1972, is another free-energy relationship:[5][6][7] where N + is the nucleophile dependent parameter and k0 the reaction rate constant for water. In this equation, a substrate-dependent parameter like s in the Swain–Scott equation is absent. The equation states that two SpletThe Swain Scott equation- Correlations for nucleophillic reactions. The Edward equation. The reactivity-selectivity principle and the isoselectivty rule. The intrinsic barrier and Hammonds postulate. PHOTO CHEMISTRY: Formation of excimers and exciplexes Quantum yields.
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Splet10. apr. 2024 · Some examples are Swain-Scott equation, Ritchie equation, Mayr-Patz equation and Unified equation. Note: Here we noted that nucleophilicity is decided by the order of basicity. The more basicity means more nucleophilicity. Nucleophiles have a tendency to attack substances which have higher electron deficiency. JEE NEET Best … Splet01. dec. 2013 · The equation log k = (E‴ + sEN‴ +c), where E‴ is an electrophilicity parameter, sE is a Swain-Scott type of response parameter (to variation in nucleophilicity) … canucks at wild
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SpletIn physical organic chemistry, the Swain–Lupton equation is a linear free energy relationship (LFER) that is used in the study of reaction mechanisms and in the … Spletпри s E = 1 (для карбокатионов) это уравнение эквивалентно оригинальному уравнению Майра — Патца; при s N = 0.6 (для большинства n-нуклеофилов): , что эквивалентно уравнению Свена-Скотта: ; при s E = 1 и s N = 0.6 получим: что эквивалентно уравнению Ричи в немного измененном виде: См. также [ править … SpletThis equation can be rewritten in several ways: with s E = 1 for carbocations this equation is equal to the original Mayr–Patz equation of 1994, with s N = 0.6 for most n nucleophiles the equation becomes = + or the original Scott–Swain equation written as: bridgerton offer from a gentleman