REACTIVITY OF DISUBSTITUED AMMONIUM SELENIATE SALTS WITH SNME3CL. X-RAY STRUCTURE OFCY2NH2SEO4SNME3

The reaction of Cy2NH2HSeO4.H2Oand SnMe3Cl led to the formation of Cy2NH2SeO4SnMe3 (1), which crystallizes in the orthorhombic space group Pbca with Z = 16, a = 11.59430(10) AÌŠ, b = 19.3138(3)AÌŠ, c = 36.8673(6)AÌŠ, and V = 8255.7(2)AÌŠ3. The asymmetric unit consists of two [SeO 4 SnMe 3 ]- in which the SnMe3 residue is trans coordinated. The complex-anion are linked via NH----O hydrogen bonds which are involved by Cy2NH2+cation. From a supramolecular point of view, the superposition of [SeO4SnMe3]- along a axis are linked by the NH---O of Cy2NH2+cation along c axis giving a tridimensional structure. The characterization of 1 is accompanied by infrared and NMR characterization of two seleniate complexes containing SnMe3 residue to complete the study of reactivity between dialkylammonium seleniate salt and SnMe3Cl molecule.