Synthesis and crystal structure of N-benzylmethy- lammonium pentachlorothallate (III), [C₆H₅CH₂NH₂CH₃]₂TlCl₅

Abstract

N-Benzylmethylammonium pentachlorothallate (III) salt crystallizes in the monoclinic system P2₁/c with the following unit cell dimensions: a = 10.9540 (8), b = 12.559(1), c = 18.099(2)Å, β = 112.1(3)° and Z = 4. The examination of the structure shows an alternate stacking of inorganic layers of pentachlorothallate (III) anions and organic layers of [C₆H₅CH₂NH₂CH₃]⁺ cations parallel to the c axis. The cohesion forces of the packing of N-benzylmethylammonium units in the layer and between two adjacent layers are provided by hydrogen bonds (N—H⋅sCl) and van der Waals contacts.