The Crystal Structure of Hydroazonium Diphosphate, N2H6H4(PO4)2

[摘要] Hydrazonium diphosphate crystallizes with the space-group symmetry P21/C. There are two formular units of N2H6H4(PO4)2 in the unit cell, for which a = 4.52¡¾0.02, b = 8.06¡¾0.03, c = 10.74¡¾0.03¡Ê and ¥â = 100¡¾0.5¡Æ. The determination of the crystal structure was carried out by means of Patterson, Fourier and difference syntheses. The phosphate group has configuration of nearly regular tetrahedron with the mean P-O distance of 1.55¡Ê. The N-N distance found is 1.40¡Ê, which corresponds to previously reported values for the N2H6++ ion in N2H6SO4. A molecule has a transform with a center of symmetry in it. Each nitrogen atom forms three hydrogen bonds with the N¡¦O distances 2.62, 2.79 and 2.89¡Ê. And a O¡¦O hydrogen bond between different phosphate groups is found with the distance 2.63¡Ê. The structure is held together by three-dimensional network of the strong hydrogen bonds.

[学科分类] 化学（综合）