“…Still, several T-shaped p interactions can be found, and the most noticeable ones are between the lone electron pairs of a sulfur atom with the nearest benzothiazole cycle (angle of 591 between the heterocycle planes, d(SÁ Á ÁC2 0 ) = 3.58 Å, d(SÁ Á ÁC2) = 3.46 Å). Similar p contacts are present in the structure of MeN(H)-Pbt, 28 where the closest distance is found between the sulfur atom and carbon atoms of the benzothiazole unit of the neighboring molecule (611 angle between heterocycle planes, d(SÁ Á ÁC7 0 ) = 3.48 Å, d(SÁ Á ÁC7a 0 ) = 3.84 Å). Deprotonation of the earlier studied Dipp-and Messubstituted silanediamines was easily achieved by treatment with KH.…”