𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Harmony and Dissonance in the Concert of Proton Motions

✍ Scribed by Prof. Richard L. Schowen

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
529 KB
Volume
36
Category
Article
ISSN
0044-8249

No coin nor oath required. For personal study only.

✦ Synopsis

Jencks's principle is fulfilled in these examples of double proton transfer reactions in a variety of media. The reactions proceed in a concerted manner when a high‐energy intermediate needs to be avoided and a stepwise manner when this is not neccessary. This is the result of detailed studies by the research groups of Ahlberg (mutarotation of tetramethylglucose), Limbach (tautomerization of porphyrins), Petrich (tautomerization of 7‐azaindole), and Zewail (tautomerization of 7‐azaindole dimers in the gas phase), which are discussed here.

📜 SIMILAR VOLUMES

Proton NMR solid echoes in the presence
Proton NMR solid echoes in the presence of reorientational motion
✍ M. Mortimer; G. Oates; T.B. Smith 📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 425 KB

The effect of reorientational mobon on the amplwde of the proton NMR sobd echo response loll-g a resonanl ## P,(90°)-T-Px(900) pulse sequence for polycrystallme be-e 1.2,3.4-d, has beeen measured as a function of temperature The results are compared wth those of a theoretical model of Isolated &p