Determination of therα-Structure and of Bond Contributions to the Degree of Order of Thiophene by NMR of Partially Oriented Molecules Considering Correlated Deformation

Abstract
The solvent effects on the structure of partially oriented thiophene are studied in 7 different liquid crystal solvents. In an analysis of the combined data considering correlated molecular deformation, interaction parameters are determined and a unique solvent independent structure is found which agrees well with MW-results. The interaction parameters allow an assignment of the contributions to the degree of order to parts of the molecule, i.e. to the C—H bonds and to the carbon-sulfur ring.