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Information × Registration Number 0214U005758, 0111U002395 , R & D reports Title Fluorenonocrownophanes, fluorenocrownophanes and molecular clips on the basis of diphenylglycoluril as new molecular receptors of inorganic and organic substrates popup.stage_title Head Kirichenko T.I., Registration Date 04-03-2014 Organization A.V.Bogatsky Physico-Chemical Institute of the National Academy of Sciences of Ukraine popup.description2 Research object - crownophanes containing the fragments of fluorenone and hydroquinone or 4,4 '-hydroxybiphenyl, joined by the residues of three- and tetraethylene glycol. A purpose of work is synthesis of new crownophanes containing the fragments of fluorenone and hydroquinone or 4,4'-hydroxybiphenyl, joined by the residues of three- and tetraethylene glycol, the study of their structure, properties and interaction with paraquat. Research methods - synthetic, IR, UV, NMR spectroscopy, mass spectrometry, X-ray. By the reaction of ditosylates at the base of 2,7-dihydroxyfluorenone containing the resudues of three- and tetraethylene glycol in the side chains with 4,4'-hydroxybiphenyl fuorenonocrownophanes with biphenyl fragment were obtained. Crownophanes containing fragments of hydroquinone were obtained by the reaction of tosylates at the base of hydroquinone with the resudues of three- and tetraethylene glycol in para positions with 2,7-dihydroxyfluorenone. In both cases we succeeded in isolation of small amounts the products of [2+2]-condensation. It's shown that in the crystalline state in all cases the fluorenone fragment is planar, aromatic moieties are located T-shape, intermolecular ?-? stacking interactions are absent. It was established that for compounds containing the same aromatic moieties, the most stable complexes with paraquat are formed by the crownophanes including fragments of tetraethylene glycol. Product Description popup.authors Богащенко Т.Ю. Кікоть Л.С. Кириченко Т.І Кулигіна К.Ю. Лобач О.В. Ляпунов О.Ю Яковенко І.С. popup.nrat_date 2020-04-02 Close