Bulletin of the Korean chemical society | |
A Two-Dimensional Terrace-Like N-heterocyclic-Pb(II) Coordination Compound: Structure and Photoluminescence Property | |
Rong Qing Li1  Kui Rong Ma1  Yu Lan Zhu1  Li Cao1  Yu Zhang1  | |
关键词: N-heterocyclic; Lead compound; Crystal structure; Photoluminescence; | |
DOI : | |
学科分类:化学(综合) | |
来源: Korean Chemical Society | |
【 摘 要 】
The first example of lead compound from Pb(NO3)2 and H3L N-heterocyclic ligand (H3L = (HO2C)2(C3N2) (C3H7)CH2(C6H4)(C6H3)CO2H), [Pb4(L`)4]·5H2O 1 (L` = OOC(C3H7)(C3N2)CH2(C6H4)(C6H3)COO), has been obtained under hydrothermal condition by decarboxylation, and characterized by elemental analysis, IR, TGDTA, 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 π*-n and π*-π 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 (λexcitation = 390 nm).
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912010242841ZK.pdf | 1193KB | download |