Effortless Extraction of Structural and Orientational Information from C-H Dipolar Couplings for Thiophene Mesogens.

Five molecular mesogens containing phenyl rings and thiophene are subjected to a detailed C NMR investigation. The first mesogen contains only phenyl rings, while the other four have thiophene with substitution at position 2 or 3. Two of these also have a spacer inserted between the thiophene and the rest of the core unit.