A new double phosphoryl amide flame retardant [1, 2-bis(5, 5-dimethyl-1, 3,
2-dioxyphospacyclohexane phosphoryl amide)ethane(BPEA)] was synthesized an
d characterized by elemental analysis, FTIR and H-1 NMR. The crystal struct
ure parameters : monoclinic crystal; space group P2(l)/n; unit fell dimensi
ons a = 6.9657(10), b = 14.571(3), c = 8.6426(12) Angstrom, beta = 91.191(1
1) degrees; V = 877.0(2) Angstrom (3) , Z = 2, D-c = 1.349 g/cm(;)(3) mu =
0.276mm(-1), F(000) = 380; R = 0.0405, wR = 0.0890 (I>2 sigma (I))(degrees)
.