[Ca(dipicH < inf > 2 < /inf > )(OH < inf > 2 < /inf > ) < inf > 3 < /inf > ][Ce(dipic) < inf > 3 < /inf > ]·5H < inf > 2 < /inf > O: A One-Dimensional Coordination Polymer with Alternating CeN < inf > 3 < /inf > O < inf > 6 < /inf > and CaNO < inf > 7 < /inf > Polyhedra (dipicH < inf > 2 < /inf > = Pyridine-2,6-dicarboxylic Acid)

Abstract

The reaction of (NH4)2:Ce(NO3)6, and CaCl2 with dipicH2: resulted in the title compound (1). 1 crystallizes in the triclinic system, space group P1 with a = 11.234(2) Å, b = 12.719(4) Å, c = 16.142(4) Å, α = 95.63(2)°. β= 103.73(2)°, γ = 113.83(2)°, and Z=2. The structure consists of Ce(dipic)22- and Ca(dipicH2)(OH2)32+ ions linked by carboxylate groups forming an infinite linear chain having alternating tricapped trigonal prismatic and square antiprismatic polyhedra.