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Ground- and Excited-State Proton Transfer in Anthocyanins: From Weak Acids to Superphotoacids

✍ Scribed by Moreira,, Paulo F.; Giestas, Leticia; Yihwa, Chang; Vautier-Giongo, Carolina; Quina, Frank H.; Maçanita, Antonio L.; Lima, João C.

Book ID
127067142
Publisher
American Chemical Society
Year
2003
Tongue
English
Weight
185 KB
Volume
107
Category
Article
ISSN
1089-5639

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📜 SIMILAR VOLUMES

Ground and excited state intramolecular
Ground and excited state intramolecular proton transfer in OCCNN ring
✍ Xiaofeng Duan; Steve Scheiner 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 774 KB

Molecular orbital calculations reveal that the keto tautomer of HOCHCHNHNCHz, unlike the enol, does not represent a minimum in the ground state proton transfer potential. Excitation to the first excited singlet or triplet state leads to a rapid and barrierless transfer to the keto which becomes stro