Conformation of Symmetric Bilirubin Analogs from13C-Nuclear Magnetic Resonance Spin Lattice T1Relaxation Times
- 1 March 1993
- journal article
- research article
- Published by Taylor & Francis in Spectroscopy Letters
- Vol. 26 (3) , 461-472
- https://doi.org/10.1080/00387019308011545
Abstract
Symmetric analogs of bilirubin with propionic acid groups shortened and lengthened (and esterified as methyl esters) adopt similar conformations in deuterated dimethylsulfoxide solvent, as determined from their 13C-NMR spin lattice relaxation times. Segmental motion of the alkanoic acid chain carbons indicates internal hydrogen bonding with solvent participation.Keywords
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