Synthesis and Characterization of a New 1-Ethynyl-cyclohexanammonium Dihydrogenphosphate [C₈H₁₁NH₃]H₂PO₄

Abstract

The chemical preparation and crystal structure are given for a new organic dihydrogenphosphate, [C₈H₁₁NH₃]H₂PO₄. This compound is monoclinic P2₁/n with the following unit-cell parameters: a = 11.245(1), b = 6.515(6), c = 15.915(6)Å, β = 109.53(2)°, V = 1098.9(8)ų, Z = 4 and D_x = 1.337 g cm^-3. The atomic arrangement is built by infinite corrugated ribbons, spreading parallel to the b axis. Between these ribbons are located the 1-ethynyl-cyclohexanammonium cations, which form hydrogen bonds N-H…O with some oxygen atoms of phosphoric groups, giving rise to a three-dimensional network.