Cation-π interactions: Synthesis and crystal structure of complex [K(DB18C6)]I₃

Abstract

1202-1204A dibenzo-18-crown-6 (DB18C6) complex, [K(DB18C6)]I3 has been isolated and characterized by elemental analysis, IR and X-ray diffraction analysis. The complex belongs to triclinic, space group P21/c with cell dimensions, a = 0.97870(17), b = 1.6909(3), c = 1.5435(3) nm, β= 98.435(3)·, V = 2.5266(7) nm3, Z = 2, Dcalc. = 1.026 Mg/m3, F(000) = 740, RI = 0.0534 and wR2 = 0.1666. In the solid state, two [K(DB18C6)]+ complex cations form a dimeric structure bridged by K+-π interactions