Distinguishing tautomerism in the crystal structure of (<i>Z</i>)-<i>N</i>-(5-ethyl-2,3-dihydro-1,3,4-thiadiazol-2-ylidene)-4-methylbenzenesulfonamide using DFT-D calculations and<sup>13</sup>C solid-state NMR
Acta crystallographica. Section C, Structural chemistry.