Synthesis and crystal structure of a new o-ethylphenylammonium triphosphate [2-C2H5C6H4NH3]3H2P3O10

Chemical preparation and characterization by X-ray diffraction, IR, and NMR spectroscopies and thermal analysis of a new o-ethylphenylammonium triphosphate [2-C2H5C6H4NH3]3H2P3O10 are reported. This compound crystallizes in a monoclinic unit cell P21/n with the parameters: a=17.670(1)Å, b=8.558(8)Å, c=20.100(2) Å, β=100.39(6)°, Z=4, and V=2990(4) Å3. Crystal structure has been solved and refined to R=0.041 using 6857 independent reflections. In this atomic arrangement, layers built by H2P3O103− groups are developed along (1 0 −1) direction. Between these layers are located the o-ethylphenylammonium entities which form hydrogen bonds with some external oxygen atoms of phosphoric groups.