18499-70-2Relevant articles and documents
Crystalline inclusion compounds of hosts composed of anthracene, ethylene and crowded alcoholic building blocks
Weber, Edwin,Hens, Thomas,Brehmer, Thomas,Csoeregh, Ingeborg
, p. 235 - 241 (2007/10/03)
A series of new clathrate host molecules 1-3 (a, b) have been synthesized, which contain two bulky alcoholic groups attached via an acetylene connection element to different positions (1,5, 1,8 or 9,10) of a basic anthracene construction unit. Their clathrate formation properties with organic guests, including amines, dipolar aprotic and apolar compounds, are reported (78 examples of clathrates); these demonstrate a characteristic level of selectivity. The crystal structures of three selected clathrates, containing acetone or tetrahydrofuran as the guest, have been determined by X-ray diffraction. H-bonded 1:2 host-guest associates are formed in these clathrates, where each of the host hydroxy groups binds to a guest oxygen, although the host-guest arrangements in the acetone and tetrahydrofuran complexes are different in orientation, being in endo- and exo-mode relative to the anthracene unit, respectively.
