Picture of virus under microscope

Research under the microscope...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

Explore SIPBS research

Solid-state electronic absorption, fluorescence and C-13 CPMAS NMR spectroscopic study of thermo- and photo-chromic aromatic Schiff bases

Alarcon, S H and Olivieri, A C and Nordon, A and Harris, R K (1996) Solid-state electronic absorption, fluorescence and C-13 CPMAS NMR spectroscopic study of thermo- and photo-chromic aromatic Schiff bases. Journal of the Chemical Society, Perkin Transactions 2 (11). pp. 2293-2296. ISSN 1472-779X

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

Solid-state electronic absorption, fluorescence emission and C-13 CPMAS spectroscopies have been applied to a series of aromatic Schiff bases displaying both ground and excited state intramolecular proton transfer phenomena. All the results can be explained on the basis of a thermal equilibrium between enolimine and keto-enamine tautomeric forms in the crystalline state. Most of the studied compounds are thermochromic. However, a few are photochromic. The carbon-13 NMR data in the solid state show, in general, residual (C-13,N-14) dipolar coupling effects. In certain cases, however, where fast proton transfer occurs in the ground state, these effects are shown to be self-decoupled.