NMR Studies of Ultrafast Intramolecular Proton Tautomerism in Crystalline and Amorphous N, N′-Diphenyl-6-aminofulvene-1-aldimine: Solid-State, Kinetic Isotope, …

…, HM Vieth, M Pérez-Torralba, D Sanz…

Index: Sanz, Dionisia; Perez-Torralba, Marta; Alarcon, Sergio Hugo; Claramunt, Rosa Maria; Foces-Foces, Concepcion; Elguero, Jose Journal of Organic Chemistry, 2002 , vol. 67, # 5 p. 1462 - 1471

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Citation Number: 32

Abstract

Using solid-state NMR spectroscopy, we have detected and characterized ultrafast intramolecular proton tautomerism in the N− H− N hydrogen bonds of solid N, N′-diphenyl- 6-aminofulvene-1-aldimine (I) on the microsecond-to-picosecond time scale. 15N cross- polarization magic-angle-spinning NMR experiments using 1H decoupling performed on polycrystalline I-15N2 and the related compound N-phenyl-N′-(1, 3, 4-triazole)-6- ...