Synthesis and characterization of single crystals of the layered copper hydroxide acetate Cu2(OH)3(CH3COO)·H2O

0368900 - ÚACH 2012 RIV DE eng J - Journal Article
Švarcová, Silvie - Klementová, Mariana - Bezdička, Petr - Lasocha, W. - Dušek, Michal - Hradil, David
Synthesis and characterization of single crystals of the layered copper hydroxide acetate Cu2(OH)3(CH3COO)·H2O.
Crystal Research and Technology. Roč. 46, č. 10 (2011), s. 1051-1057. ISSN 0232-1300. E-ISSN 1521-4079
Institutional research plan: CEZ:AV0Z40320502; CEZ:AV0Z10100521
Keywords : copper hydroxide acetate * crystal structure * pigment
Subject RIV: CA - Inorganic Chemistry
Impact factor: 0.946, year: 2011

Single-crystals of the layered copper hydroxide acetate Cu2(OH)3(CH3COO)•H2O were synthesized by heating copper acetate solution at 60°C. The standard synthesis of the title compound based on slow titration of copper acetate solution with NaOH yielded materials with worse morphology and an additional phase present. The obtained products were characterised with powder X-ray diffraction, high temperature powder X-ray diffraction, scanning electron microscopy and infrared spectroscopy. The crystal structure was determined from single-crystal X-ray diffraction data, collected both at 120 K and at 293 K. The title compound crystallizes in the monoclinic botallackite-type layered structure, with the lattice parameters a = 5.5776(3) Å, b = 6.0733(2) Å, c = 18.5134(8) Å, beta = 91.802(4)° and a = 5.5875(4)Å, b = 6.0987(4)Å, c = 18.6801(10)Å, beta = 91.934(5)° for 120 K and for 293 K, respectively. Acetate groups and water molecules are interlayered between corrugated sheets of edge-sharing CuO6 octahedra exhibiting strong distortion resulted from the Jahn-Teller effect.
Permanent Link: http://hdl.handle.net/11104/0203111