Abstract

Thiourea reacts with 1,4-diazabicyclo[2.2.2] octane (DABCO) in methanol, leading to the layered inclusion compound (thiourea)(2).(DABCO). Single crystal X-ray diffraction analysis was carried out. The structure may be described as a supramolecular arrangement in which the DABCO molecules are intercalated in a layered network formed by two-dimensional nesting of thiourea molecules. The solid state C-13 CP-MAS NMR study of the compound shows only a single line for C-alpha with a residual dipolar interaction between C-13 and N-14 of less than 80 Hz, attributed to weak guest-host interaction.