| Abstract: A 3d-4f coordination polymer {[NiTb2(INAIP)4(H2O)6]·8H2O}n (1) was obtained by hydrothermal assembly of NiSO4·6H2O and Tb(NO3)3·6H2O with the H2INAIP ligand. Complex 1 crystallizes in triclinic, space group P1 with a=1.009 72(5) nm, b=1.083 43(5) nm, c=2.983 63(14) nm, V=3.209 3(3) nm3, Z=2, C56H60NiTb2N8O34, Mr=1765.67, Dc=1.827 g·cm-3, μ=2.575 mm-1, F(000)=1 764, Rint=0.031 5, R=0.052 5, wR=0.131 8. Single-crystal X-ray diffraction analysis reveals that each INAIP2- ligand uses its two carboxyl groups to connect two/three Tb(Ⅲ) centers, and the Ni(Ⅱ) only bonds to one pyridyl group and terminal water molecules, forming a two-dimensional (2D) bilayer. On the other hand, the 2D layers are further connected by hydrogen bonding interactions to give a three-dimensional (3D) supramolecular structure. The complex 1 at room temperature shows typical green photoluminescence of rare earth Tb3+ ion. CCDC: 853173. |
