2015
DOI: 10.1039/c5ce01302j
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Unique lanthanide frameworks with 63 topology based on 1,5-naphthalenedisulfonate and 1H-imidazo[4,5-f][1,10]-phenanthroline: syntheses, crystal structure, photoluminescence, and white light emission

Abstract: Novel lanthanide-organic frameworks {[Ln 2 IJ1,5-NDS) 3 IJIP) 4 IJH 2 O) 2 ]·9H 2 O} n (Ln = Pr 1, Sm 2, Eu 3, Gd 4, Dy 5, Tb 6; 1,5-NDS = 1,5-naphthalenedisulfonate, and IP = 1H-imidazoij4,5-f]ij1,10]-phenanthroline) were synthesized and characterized. The complexes possess unique 2D architectures with 6 3 topology, and their structures consist of three-connected uninodal chain-layer framework with helical characteristics. Complexes 1, 4, 5, and 6 show ligand-based fluorescence, whereas complexes 2 and 3 show typi… Show more

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Cited by 16 publications
(8 citation statements)
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“…in which τ da and τ d are the excited state lifetimes of a donor in the presence and absence of an acceptor, respectively. 53 The values of E increase with the increase of Eu 3+ molar amounts (Figure 5d). Sensing of Metal Ions.…”
Section: ■ Experimental Sectionmentioning
confidence: 86%
“…in which τ da and τ d are the excited state lifetimes of a donor in the presence and absence of an acceptor, respectively. 53 The values of E increase with the increase of Eu 3+ molar amounts (Figure 5d). Sensing of Metal Ions.…”
Section: ■ Experimental Sectionmentioning
confidence: 86%
“…This was assigned to the formation of strong hydrogen bonds between F À ions and -OH groups, which minimizes the nonradiative decay. Except for Eu(III) ions, other RE ions, such as Sm(III), [39][40][41] Dy(III) [42][43][44] and Pr(III), 36 can also be sensitized by LC emission of ligands to yield white PL. For instance, the Tong group reported that photoexcitation of [Dy 4 (OH) 2 (bpt) 4 -(NO 3 ) 6 (EtOH) 2 ]ÁEtOH 42 (Hbpt = 3,5-bis(pyridin-2-yl)-1,2,4-trizolate) at 365 nm generated dual emissions from the bpt ligand and the Dy(III) centre, yielding white light with a QE of B2%.…”
Section: Rare-earth (Re)-containing Compoundsmentioning
confidence: 99%
“…The IP ligand contains the two donor N atoms as chelate coordination sites and free Lewis basic N atoms sites on the IP ligand, which shows the potential for the sensing metal ions. In addition, we note that the compound IP exhibits a broad absorption band with maxima at approximately 368, 392, and 415 nm, which reside at longer wavelengths. So it is possible to achieve the Eu 3+ /Tb 3+ luminescence under near-UV to visible light (350–400 nm).…”
Section: Introductionmentioning
confidence: 79%
“…Thus, the Gd 0.99803 Eu 0.00197 material is considered as a white light emission source. However, white light emission based on two-component doped Ln-MOFs is rare in the literature. , …”
Section: Resultsmentioning
confidence: 99%