期刊
DALTON TRANSACTIONS
卷 44, 期 21, 页码 10089-10096出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5dt00929d
关键词
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资金
- 973 Program [2011CBA00505]
- National Nature Science Foundation of China [21371170]
Two new lead(II) coordination polymers, [Pb(NO3)(tzib)](n) (1) and [Pb(tzib) 2] n (2), were successfully synthesized from the reaction of a rigid ligand 1-tetrazole-4-imidazole-benzene (Htzib) and lead(II) nitrate in different solvents. The obtained polymers have been characterized by single-crystal X-ray diffraction analyses, which show that both polymers feature 2D layer structures. The inorganic anion nitrate in 1 shows a mu(2)-kappa O-3:kappa O-3 bridging mode to connect adjacent lead ions into a zigzag chain, and then the organic ligands tzib(-) join the neighboring chains into a 2D layer by a mu(3)-kappa N1:kappa N2:kappa N6 connection mode. In 2, there are two different bridging modes of the tzib(-) ligand: mu(3)-kappa N1:kappa N2:kappa N6 and mu 3-kappa N1:kappa N6 to coordinate the lead ions into a 2D layer structure. Interestingly, both polymers displayed broadband emissions covering the entire visible spectra, which could be tunable to near white-light emission by varying excitation wavelengths.
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