Tautomeric Equilibria of 3-Formylacetylacetone: Low-Temperature NMR Spectroscopy and ab Initio Calculations

…, I Hussain, P Langer, M Rettig, K Weisz

文献索引：Sankar, Parasuraman Jai; Das, Sankar K.; Giri, Venkatachalam S. Heterocycles, 1991 , vol. 32, # 6 p. 1109 - 1116

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被引用次数: 7

摘要

... Volume: Page ... on coalescence temperatures and chemical shift differences yields a free energy of activation for this bond rotation of about 32 kJ mol ... 1, which corresponds to a free energy difference of 3.3 kJ mol −1 . By lowering the temperature to 123 K the ratio ...