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Structure of [NH3(CH2)4NH3]2P4O12·2H2O

1998; Elsevier BV; Volume: 35; Issue: 10-11 Linguagem: Inglês

10.1016/s0992-4361(99)80004-6

1873-3751

E.H. Soumhi, Ismae͏̈l Saadoune, Ahmed Driss, T. Jouini,

Inorganic Fluorides and Related Compounds

After a short survey of what is the present state of the cyclophosphates associated with the organic molecule NH2(CH2)4NH2, we report chemical preparation and crystal structure for a new example of such compounds. [NH3(CH2)4NH3]2P4O12.2H2O is monoclinic (S.G. : P21/n), with Z = 2 and the following unit-cell parameters : a = 7.6728(8) Å, b = 18.962(3) Å, c = 7.9789(9) Å β = 111.751(9)°. Bidimensional layer arrangement of P4O12 rings connected to the water molecules thanks to weak H-bonds run parallel to the ab plane. The organic groupements located between these inorganic planes perform the three-dimensional cohesion by NH····O hydrogen bonds.