01991nas a2200205   4500008004100000022001400041245013000055210006900185260007100254300001400325490000700339520115900346100003001505700001801535700002201553700002401575700002701599700002801626856013101654       2015                        eng d  a1528-748300aExploiting powder x-ray diffraction to establish the solvent-assisted solid-state supramolecular assembly of pillar[5]quinone0 aExploiting powder xray diffraction to establish the solventassis  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcAPR  a1583-15870 v153 a<p>We report the solvent-mediated supramolecular assembly of pillar[5]quinone (P[5]Q), a symmetric cyclamer containing five benzoquinone moieties bridged by five alternating methylene units. The supramolecular assembly of P[5]Q is shown to be facilitated by 1,1,2,2-tetrachloroethane (TCE) as solvent, producing a microcrystalline solvate material P[5]Q(.)2TCE with a fluffy texture. Optical and electron microscopy reveal that this material has a rod-shaped morphology, extending to several micrometers in length. Due to the microcrystalline nature of the material, structure determination was carried out directly from powder X-ray diffraction data, augmented by high-resolution solid-state C-13 NMR. The two crystallographically distinct TCE molecules occupy different types of void in the structure and have different dynamic properties. Crystallization of P[5]Q was attempted from a large number of different solvents, but only TCE was found to facilitate the formation of a crystalline phase. Indeed, features of the crystal structure suggest that the TCE component plays an important role in promoting the columnar assembly of P[5]Q molecules.</p>1 aShivakumar, Kilingaru, I.1 aYan, Yuncheng1 aHughes, Colan, E.1 aApperley, David, C.1 aHarris, Kenneth, D. M.1 aSanjayan, Gangadhar, J.  uhttps://library.ncl.res.in/content/exploiting-powder-x-ray-diffraction-establish-solvent-assisted-solid-state-supramolecular-1