Hydrothermal synthesis and structural characterization of new lanthanide coordination polymers with pimelic acid and 1,10-phenanthroline

作者：Huang L^*; Zhang LP; Jin LP

来源：Journal of Molecular Structure, 2004, 692(1-3): 169-175.

DOI：10.1016/j.molstruc.2004.01.027

• lanthanide
• coordination polymer
• hydrothermal synthesis
• crystal structure
• infrared

This paper presents three new lanthanide coordination polymers [Pr-2(pim)(3)(phen)(2)(H2O)](n).3nH(2)O (1) (H(2)pim = pimelic acid; phen = 1, 10-phenanthroline) and [Ln(Hpim)(pim)(phen)](n). 1.5n H2O (Ln = Nd, 2; Er, 3) prepared by the hydrothermal reaction. The structural details of complexes 1, 2 and 3 are reported. In complex 1, the Pr(III) ions are bridged by pim in three modes to form 2D layers. Adjacent layers are assembled by hydrogen bonds and pi-pi stacking between phen ligands into a 3D network. In complex 2, the Nd(III) ions are connected by pim and Hpim in two modes into 1D chains. Hydrogen bonding and pi-pi stacking between chains result in a 3D supramolecular structure. Single crystal X-ray diffraction analysis shows that complex 3 is isostructural with complex 2.

• 出版日期2004-4-5
• 单位安阳师范学院