A Two-Dimensional Terrace-Like N-heterocyclic-Pb(II) Coordination Compound: Structure and Photoluminescence Property

作者：Ma Kui Rong^*; Zhu Yu Lan; Zhang Yu; Li Rong Qing; Cao Li

来源：Bulletin of the Korean Chemical Society, 2011, 32(3): 894-898.

DOI：10.5012/bkcs.2011.32.3.894

• N-heterocyclic
• Lead compound
• Crystal structure
• Photoluminescence

The first example of lead compound from Pb(NO(3))(2) and H(3)L N-heterocyclic ligand (H(3)L = (HO(2)C)(2)(C(3)N(2)) (C(3)H(7))CH(2)(C(6)F(4))(C(6)H(3))CO(2)H), [Pb(4)(L')(4)]center dot 5H(2)O 1 (L' = OOC(C(3)H(7))(C(3)N(2))CH(2)(C(6)H(4))(C(6)H(3))COO), has been obtained under hydrothermal condition by decarboxylation, and characterized by elemental analysis, IR, TG-DTA, and single-crystal X-ray diffraction. Compound 1 possesses a rare two-dimensional upper-lower offset terrace-like layer structure. In 1, crystallographic distinct Pb(II) ion adopts five-coordination geometry, and two lattice water molecules occupy the voids between 2-D layers. Results of solid state fluorescence measurement indicate that the emission band 458 nm may be assigned to pi*-n and pi*-pi electronic transitions within the aromatic systems of the ligand L', however, the emission bands centred at 555 nm, 600 nm and 719 nm may be derived from phosphorescent emission (lambda(excitation) = 390 nm).

• 出版日期2011-3-20
• 单位淮阴师范学院