[Na（DB18-C-6）(H2O)2][Na（DB18-C-6）(SCN)2]:Two-DimensionalNetworkComplexAssembledbyπ-πStackingInteractions,HydrogenBondsandElectrostaticInteractions

A novel two dimensional network dibenzo 18 crown 6 (DB18 C 6) complex: [Na(DB18 C 6)(H 2O) 2][Na(DB18 C 6)(SCN) 2] has been isolated and characterized by elemental, IR and X ray diffraction analysis. The crystal structure belongs to monoclinic, space group P 2 1/ c with cell dimensions a =1 06178(7), b =1 40243(8), c =3 03496(19) nm, β =90 4220(10)°, V =4 5292(5) nm 3, Z =4, D calcd =1 351 g/cm 3, F (000)=1936, R 1=0 0369, wR 2=0 0821. The most interesting feature in this structure is that complex cation and complex anion form a two dimensional network via π π stacking interactions, hydrogen bonds and electrostatic interactions.