Abstract
The salt di(N-benzyl piperidinium) pentachloroantimonate(III) dihydrate crystallizes in the orthorhombic system with space group Cmc21, the unit cell dimensions are: a = 29.383(1), b = 10.509(2), c = 9.941(1) A, with Z = 8. The structure shows a layer arrangement perpendicular to the a axis: planes of SbCl6 octahedra alternate with planes of [C12H17N]+ cations. The SbCl6 octahedra are connected through a O(W)–H⋅⋅⋅Cl hydrogen bonds and a chlorine bridge, so that infinite unidimensional chains of composition [SbCl5(H2O)2]2n− n are formed in the structure along the c direction. These chains are connected to [C12H17N]+ entities by N–H⋅⋅⋅Cl and N–H⋅⋅⋅O(W) hydrogen bonds, forming a three-dimensional network. It was found that lengths of Sb–Cl bonds may differ from each other. The differences shown as a distortion of the SbCl6 octahedra were attributed to the Sb(III) lone electron pair stereoactivity.
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