Publication Information
Title: | Temperature dependence of (+)-catechin pyran ring proton coupling constants as measured by NMR and modeled using GMMX search methodology |
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Author(s): | Tobiason, Fred L.; Kelley, Stephen S.; Midland, M. Mark; Hemingway, Richard W. |
Date: | 1997 |
Source: | Tetrahedron Letters. 38(6): 985-988. |
Description: | The pyran ring proton coupling constants for (+)-catechin have been experimentally determined in deuterated methanol over a temperature range of 213 K to 313 K. The experimental coupling constants were simulated to 0.04 Hz on the average at a 90 percent confidence limit using a LAOCOON method. The temperature dependence of the coupling constants was reproduced from the Boltzmann distribution of the conformational ensemble generated by the GMMX searching program. |
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