Synthesis, calorimetric study, infrared spectroscopy and crystal structure investigation of β-[tetraethylammonium tetramethylammonium tetrachlorozincate(II)] [β]-[(C2H5) 4N][(CH3)4N]ZnCl4

Abstract

Synthesis, crystal structure and infrared description are reported for a new phase of tetraethylammonium tetramethylammonium tetrachlorozincate(II) β-[(TEA)(TMA)ZnCl4]. Calorimetry study shows five endothermic picks at 165, 232, 280, 284, and 377 K. The compound crystallizes in the orthorhombic system, space group P21212 (N° 18), with Z = 4 and a = 13.099(3), b = 13.119(2) and c = 11.812(3) Å. The crystal structure consists of alternate organic-inorganic [(TMA)+/ZnCl 42-] layers and organic sheets (TEA)+. Organic and inorganic groups are not disordered. Its main geometrical features are those commonly observed in the atomic arrangements of (TEA)2ZnCl 4 and (TMA)2ZnCl4. © 2006 Verlag der Zeitschrift für Naturforschung.