The synthesis and crystal structure of thermochromic, yellow benzimidazolium tetrachlorocuprate(II), (C7H7N2)(2)CuCl4 (1), have been reported. The compoundcrystallizes in the C2/c space group and contains discrete tetrahedral CUCl42- species. It absorbs one molecule of water from humid atmosphere at room temperature to produce a hydrated green form, (C7H7N2)(2)CuCl4.H2O, which upon heating loses the water molecule in two steps to form the anhydrous yellow compound 1. The role of the water molecule on the solid state, yellowreversible arrowgreen thermochromic transformation is discussed
Synthesis, crystal structure and thermochromism of benzimidazolium tetrachlorocuprate: (C7H7N2)2[CuCl4] / Rahul, Bhattacharya; Mau Sinha, Ray; Raja, Dey; Righi, Lara; Gabriele, Bocelli; Ashutosh, Ghosh. - In: POLYHEDRON. - ISSN 0277-5387. - 21:(2002), pp. 2561-2565. [10.1016/S0277-5387(02)01237-8]
Synthesis, crystal structure and thermochromism of benzimidazolium tetrachlorocuprate: (C7H7N2)2[CuCl4]
RIGHI, Lara;
2002-01-01
Abstract
The synthesis and crystal structure of thermochromic, yellow benzimidazolium tetrachlorocuprate(II), (C7H7N2)(2)CuCl4 (1), have been reported. The compoundcrystallizes in the C2/c space group and contains discrete tetrahedral CUCl42- species. It absorbs one molecule of water from humid atmosphere at room temperature to produce a hydrated green form, (C7H7N2)(2)CuCl4.H2O, which upon heating loses the water molecule in two steps to form the anhydrous yellow compound 1. The role of the water molecule on the solid state, yellowreversible arrowgreen thermochromic transformation is discussedI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
