| Abstract: Two coordination complexes, [M2(L)(phen)2(H2O)2]·6H2O [M=Ni (1), Zn (2), H4L=4,4′-bipyridine-2,2′,6,6′-tetracarboxylic acid, Phen=1,10-phenanthroline], were synthesized by hydrothermal method, and their structures were determined by X-ray crystal structure analysis. Both compounds crystallize in triclinic, space group P1 with a=0.827 87(15) nm, b=1.057 1(18) nm, c=1.226 6(2) nm, α=79.150(3)°, β=84.760(3)°, γ=67.866(3)°, V=0.976 4(3) nm3, Z=1, R=0.031 2, wR=0.078 8 for 1, and a=0.874 8(15) nm, b=1.057 46(19) nm, c=1.131 5(2) nm, α=91.849(4)°, β=97.599(3)°, γ=108.034(4)°, V=0.979 8(3) nm3, Z=1, R=0.063 0, wR=0.137 8 for 2. The central metal atoms with octahedral coordination geometry in the two complexes are six-coordinated by three oxygen and three nitrogen atoms. Photoluminescence studies revealed that complex 2 exhibits strong fluorescent emission in the solid state at room temperature. CCDC: 710494, 1; 710495, 2. |
