2‐Thiopheneacetato‐Based One‐Dimensional Coordination Polymer of Tb<sup>3+</sup>: Enhancement of Terbium‐Centered Luminescence in the Presence of Bidentate Nitrogen Donor Ligands

Raphael, Shyni; Reddy, M. L. P.; Cowley, Alan H.; Findlater, Michael

doi:10.1002/ejic.200800506

Cited by 54 publications

(20 citation statements)

References 43 publications

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“…In particular, when aromatic carboxylic acids are employed as antenna ligands, the coordinated lanthanide ions exhibit higher luminescent stabilities than other organic ligands. [20][21][22] Recently, some lanthanide benzoate or salicylate complexes with strong luminescence and intriguing structural features have been reported in literature. [23][24][25][26][27][28] Mostly aromatic carboxylate ligands were selected considering the fact that the carboxylate groups interact strongly with the oxophilic lanthanide ions and the delocalized π systems provide strongly absorbing chromophore.…”

Section: -13mentioning

confidence: 99%

Structural diversity and photo-physical and magnetic properties of dimeric to 1D polymeric coordination polymers of lighter lanthanide(iii) dinitrobenzoates

et al. 2018

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Single crystal diffraction studies reveal the formation of the following 10 new complexes of lighter Ln(iii) ions with general formulas {[Ln(μ2-L1)3·(H2O)2]·H2O}n (Ln = Nd (1) and Eu (2)), [Nd(μ2-L2)2·(CH3COO)·(H2O)2]n (3), [Ln2(μ2-L2)5·(L2)·(H2O)4]n (Ln = Sm (4), Ce (5), and Pr (6)), [La2(μ2-L2)6·(H2O)3·(DMF)]n (7) (DMF = dimethylformamide), [Ln(μ2-L2)2·(L2)·(H2O)3]2 (Ln = Eu (8) and Gd (9)) and [Gd(L2)·(CH3COO)2·(H2O)2]2 (10), where L1 and L2 are anions of 3,5- and 2,4-dinitrobenzoic acid, respectively. Complexes 1-7 are 1D coordination polymers, while 8-10 are dinuclear complexes. The luminescence properties of Nd(iii) and Eu(iii) analogues displayed metal-centred emission with L1 exhibiting weak but more efficient sensitization than L2. A study of the magnetic properties of the compounds clearly demonstrated the field-induced single ion magnet behaviour of the Nd(iii) compounds 1 and 3. Their behaviour has been compared to previously reported analogous Nd(iii) complexes and the role of the lattice solvent and polymorphism on the magnetic behaviour has been evaluated.

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Section: -13mentioning

confidence: 99%

Structural diversity and photo-physical and magnetic properties of dimeric to 1D polymeric coordination polymers of lighter lanthanide(iii) dinitrobenzoates

et al. 2018

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“…Open and dense metal–organic frameworks (MOFs) have attracted attention concerning a variety of structure/property relationships ranging from storage and separation by sorption processes to magnetic ordering, conductivity and photoluminescence 1–9. Like other coordination polymers, the observation of luminescence is either triggered by certain rare earth ions10,11 or by fluorescence of the organic linker 12,13.…”

Section: Introductionmentioning

confidence: 99%

Antenna‐ and Metal‐Triggered Luminescence in Dense 1,3‐Benzodinitrile Metal–Organic Frameworks _∞³[LnCl₃(1,3‐Ph(CN)₂)], Ln = Eu, Tb

et al. 2012

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Keywords: Metal-organic frameworks / Luminescence / Lanthanides / Antenna effect Luminescent homoleptic dense 1,3-benzodinitrile MOFs (metal-organic frameworks) of Eu 3+ and Tb 3+ were prepared from the anhydrous chlorides LnCl 3 (Ln = Eu, Tb) and a melt of the linker ligand 1,3-benzodinitrile [1,3-Ph(CN) 2 =C 6 H 4 -(CN) 2 ]. The 1,3-benzodinitrile ligands act as chemical scissors and cut down the LnCl 3 structure to 2D sheets of trigonal Cl ion prisms around the rare earth ions and interlinks these nets to form a 3D framework structure of the formula ϱ 3 [LnCl 3 (1,3-Ph(CN) 2 )]. Both compounds exhibit photoluminescence of the trivalent rare earth ions although they are fully concentrated (100 % luminescence centres), and are the sole examples in which a dinitrile linker is utilized as an antenna for rare earth luminescence subsequent to a transfer of the energy from an excited ligand state to an excited 4f state [a]

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“…33 Small energy difference ( E) between triplet excited state of the ligand and excited state of Ln(III) ion will result in back energy transfer. 34 From our work, orange luminescence was observed for Sm(III) ternary complexes, 1 -8. Due to the difficulty to compare the emission intensities between solid samples, since intensity depends on the grinding and homogeneity of the sample, all the spectra were measured by using solution in DMSO (0.01 mol/L).…”

Section: Luminescence Properties Of Sm(iii) Complexesmentioning

confidence: 54%

Effect of second ligand on the luminescence of Samarium (III) dibenzoylmethane complexes: Syntheses, crystal structures, thermal analysis and luminescence study

et al. 2015

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The ternary complexes of Sm(III) with dibenzoylmethane (dbm) were synthesized by introducing 1,10-phenanthroline (phen), 4,7-dimethyl-1,10-phenanthroline (dmphen), 3,4,7,8-tetramethyl-1,10-phenanthroline (tmphen), 4,7-diphenyl-1,10-phenanthroline (dpphen), 2,2-bipyridyl (bpy), 4,4'-dimethyl-2,2-bipyridyl (4,4-dmbpy), 5,5'-dimethyl-2,2-bipyridyl (5,5-dmbpy) and 4,4'-di-tert-butyl-2,2-bipyridyl (4,4-dtbbpy) as a second ligand. The complexes were isolated and characterized by elemental analysis (CHN), thermogravimetric analysis (TGA), IR spectroscopy, luminescence spectroscopy and single crystal X-ray diffraction. Structural study shows that in all complexes Sm(III) is in square antiprism geometry. All complexes emit strong luminescence under ultraviolet excitation. The strongest emission is at 643 nm which can be assigned for 4 G 5/2 to 6 H 9/2 transition, equivalent to energy of 15550 cm −1. The addition of the second ligand has increased the emission intensity of the complexes while the transition is maintained.

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2‐Thiopheneacetato‐Based One‐Dimensional Coordination Polymer of Tb³⁺: Enhancement of Terbium‐Centered Luminescence in the Presence of Bidentate Nitrogen Donor Ligands

Cited by 54 publications

References 43 publications

Structural diversity and photo-physical and magnetic properties of dimeric to 1D polymeric coordination polymers of lighter lanthanide(iii) dinitrobenzoates

Structural diversity and photo-physical and magnetic properties of dimeric to 1D polymeric coordination polymers of lighter lanthanide(iii) dinitrobenzoates

Antenna‐ and Metal‐Triggered Luminescence in Dense 1,3‐Benzodinitrile Metal–Organic Frameworks _∞³[LnCl₃(1,3‐Ph(CN)₂)], Ln = Eu, Tb

Effect of second ligand on the luminescence of Samarium (III) dibenzoylmethane complexes: Syntheses, crystal structures, thermal analysis and luminescence study

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2‐Thiopheneacetato‐Based One‐Dimensional Coordination Polymer of Tb3+: Enhancement of Terbium‐Centered Luminescence in the Presence of Bidentate Nitrogen Donor Ligands

Cited by 54 publications

References 43 publications

Structural diversity and photo-physical and magnetic properties of dimeric to 1D polymeric coordination polymers of lighter lanthanide(iii) dinitrobenzoates

Structural diversity and photo-physical and magnetic properties of dimeric to 1D polymeric coordination polymers of lighter lanthanide(iii) dinitrobenzoates

Antenna‐ and Metal‐Triggered Luminescence in Dense 1,3‐Benzodinitrile Metal–Organic Frameworks ∞3[LnCl3(1,3‐Ph(CN)2)], Ln = Eu, Tb

Effect of second ligand on the luminescence of Samarium (III) dibenzoylmethane complexes: Syntheses, crystal structures, thermal analysis and luminescence study

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2‐Thiopheneacetato‐Based One‐Dimensional Coordination Polymer of Tb³⁺: Enhancement of Terbium‐Centered Luminescence in the Presence of Bidentate Nitrogen Donor Ligands

Antenna‐ and Metal‐Triggered Luminescence in Dense 1,3‐Benzodinitrile Metal–Organic Frameworks _∞³[LnCl₃(1,3‐Ph(CN)₂)], Ln = Eu, Tb