Abstract
The salt tris(4-dimethylaminopyridinium)tetrachoroantimonate C7H11Cl4N2Sb crystallizes at room temperature in the monoclinic system with space group C2/c. The unit-cell dimensions are: a = 13.6692(5), b = 15.1035(7), c = 7.5223(3)Å, β = 123.39(2)° with Z = 4. The crystal structure of this salt was solved by Patterson methods and refined by full-matrix least-squares on F2 to final values of R = 0.0316 and wR = 0.0975. The structure consists of infinite chains formed by SbCl4- anions packed so as to make a rigid tunnel-like structure wherein the planar cations are stacked. The [SbCl4-]n anions have a slightly distorted octahedral geometry with Sb-Cl distances ranging between 2.4315(7) and 2.6395(11)Å. Chains of SbCl6 octahedra oriented along the c axis are connected to the cations by hydrogen bonds, N-H…Cl.
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