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-C{sub 2}H{sub 5}C{sub 6}H{sub 4}NH{sub 3}]{sub 3}H{sub 2}P{sub 3}O{sub 10} are reported. This compound crystallizes in a monoclinic unit cell P2{sub 1}/n with the parameters: a=17.670(1)A, b=8.558(8)A, c=20.100(2) A, {beta}=100.39(6) deg., Z=4, and V=2990(4) A{sup 3}. Crystal structure has been solved and refined to R=0.041 using 6857 independent reflections. In this atomic arrangement, layers built by H{sub 2}P{sub 3}O{sub 10}{sup 3-} 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.