Abstrakt: |
The crystal structure of tetraethylammonium terephthalate·6H2O, 1·6H2O, monoclinic, 12/a, a = 14.416(5), b = 12.913(2), c = 17.169(4)Å, β = 103.32(4)°, Vol = 3117.4(14), Z = 8, Dcalc = 1.27, reveals a novel 2D clathrate hydrate anionic sheet that is sustained by a hexameric assembly of water molecules linking terephthalate anions through hydrogen bonds. The anionic layers are intercalated by layers of close packed cations and, via numerous inter layer C-H…O hydrogen bonds, form a stable crystalline architecture with high melting point (m. p. 160°C). |