A new copper(II) basic sulfate: poly3-aminopyridinium 3-hydroxido-di-3-sulfato-bisaquacopper(II)
Abstract
The crystal structure of the title basic copper(II) sulfate, {(C5H7N2)Cu2(OH)(SO4)2(H2O)2}n, shows an unprecedented structural arrangement of two distinct copper centres. CuO6 and CuO5 polyhedra are linked through bridging hydroxide and sulfate anions to form negatively charged infinite chains propagated along the a axis. The negative charge is balanced by 3-aminopyridinium cations that are held in the structure by extensive hydrogen bonding to the inorganic chains. Additionally, the cationic arrangement features - stacking.