102101-76-8Relevant articles and documents
Isolation and X-Ray Crystal Structure of a 2:1 Complex between Picric Acid and Dibenzo-24-crown-8; an Example of a Sandwich Structure
Colquhoun, Howard M.,Doughty, Simon M.,Stoddart, J. Fraser,Slawin, Alexandra M. Z.,Williams, David J.
, p. 253 - 258 (2007/10/02)
Despite the lack of strong intermolecular interactions in solution, picric acid (PicH) forms crystalline 2:1 complexes with both dibenzo-18-crown-6 (DB18C6) and dibenzo-24-crown-8 (DB24C8).An X-ray crystallographic study of 2PicH*DB24C8 reveals a continous layer structure comprising alternate PicH and DB24C8 molecules with stacking of the ?-electron-deficient aromatic rings in the PicH molecules and the ?-electron-rich aromatic rings in DB24C8 molecules.