CENTRO DE QUIMICA INORGANICA "DR. PEDRO J. AYMONINO"
Unidad Ejecutora - UE
Synthesis, vibrational spectroscopy and crystal structure of zinc and sodium tricarboxylate coordination polymers with the flexible ligand tricarballylate anion (TCA3-)
PATRICIA A.M. WILLIAMS, LUCIANA G. NASO, GUSTAVO A. ECHEVERRÍA, EVELINA G.FERRER
JOURNAL OF MOLECULAR STRUCTURE
ELSEVIER SCIENCE BV
Año: 2010 vol. 978 p. 124 - 124
A new 3D coordination polymer of general formula [NaZn(C6H5O6)(H2O)3]n has been hydrothermally synthesized and characterized by vibrational spectroscopy (Raman and Infrared), X-ray diffraction and thermal analysis. The compound crystallizes in the centrosymmetric monoclinic group C2/c with a = 10.885(2), b = 13.219(3), c = 15.299(5) Å, β = 102.23(2)°, V= 2151(1) (Å3), Z = 8. The crystal structure consists in an open framework where the arrangement of tetrahedral zinc and octahedral sodium cations, coordinated by water and carboxylate oxygens atoms, are linked by tricarballylate anions developing channels parallel to the [0 1-1] crystallographic direction. Thermogravimetric analysis indicates that the complex is thermally stable up to 200 °C.