Synthesis, structure and luminescent properties of 3D lanthanide (La(III), Ce(III)) coordination polymers possessing 1D nanosized cavities based on pyridine-2,6-dicarboxylic acid

Yang, Lirong; Song, Shuang; Shao, Caiyun; Zhang, Wu; Zhang, Huai‐Min; Bu, Zhanwei; Ren, Tiegang

doi:10.1016/j.synthmet.2011.04.016

Cited by 30 publications

(9 citation statements)

References 34 publications

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“…The luminescent ligands act as antenna chromophores analogous to the light harvesting center in photosynthetic systems. [10][11][12][13][14] However, these reports concentrated on the structures of coordination polymers rather than on their photophysical properties. Lanthanide(III) complexes with organic ligands containing carboxylic groups are of enduring interest due to their usually high thermodynamic stability and peculiar magnetic and luminescent properties.…”

Section: Introductionmentioning

confidence: 99%

Pyridine-2,6-dicarboxylic acid for the sensitization of europium(iii) luminescence with very long lifetimes

Tao

Yin

et al. 2015

RSC Adv.

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Convenient and mild syntheses of two europium(III) complexes, Na[Eu(dipic) 2 $3H 2 O]$4H 2 O (dipic ¼ dipicolinate anions) and Na[Eu(dipic) 2 $phen]$H 2 O (phen ¼ 1,10-phenanthroline), were reported. These two europium(III) complexes were confirmed by 1 H NMR, FT-IR, UV-Vis spectroscopy, and elemental and lifetime analysis. Interestingly, the lifetimes were 2.31 ms and 2.38 ms for Na[Eu(dipic) 2 $3H 2 O]$4H 2 O in the solid state and in ethanol solution, respectively, though high-frequency vibrations were present in the first coordination sphere. Furthermore, the lifetime for Na[Eu(dipic) 2 $phen]$H 2 O in ethanol solution is 3.23 ms, which is the longest lifetime reported to date. The Na[Eu(dipic) 2 $phen]$H 2 O complexes exhibited a quantum yield of 36.1% in ethanol solution, which was longer than that of Na [Eu(dipic) 2 $3H 2 O]$4H 2 O. The value of the stimulated emission cross-section (s p ) for Na[Eu(dipic) 2 $phen]$ H 2 O in ethanol was very close to the values of the Nd-glass laser for practical use, which showed that it had potential application as a high-powered liquid laser medium.

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Section: Introductionmentioning

confidence: 99%

Pyridine-2,6-dicarboxylic acid for the sensitization of europium(iii) luminescence with very long lifetimes

Tao

Yin

et al. 2015

RSC Adv.

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“…There has been growing interest in the design and synthesis of lanthanide-based coordination polymers motivated by their fascinating structure and the exploitable applications in luminescent materials, molecular adsorption, bimetallic catalysis and so on [1-6].T he polycarboxylic ligands have been proved to be extremelyversatile organicligands due to thefactthattheycan exhibit flexible coordination modes, including chelating, bidentate bridging or chelating bridging modes [7,8]. As an extension of research toward rational design and preparation of lanthanide coordination polymer, we recently have isolated anovel three-dimensional terbium (III) coordinated polymer containing two types of ligands (pyridine-2,5-dicarboxylate and picolinate) [Tb(C 7 H 3 NO 4 )(C 6 H 4 NO 2 )(H 2 O)] n under ionothermal conditions using the ionicliquid1-ethyl-3-methylimidazolium([Emim]Br) as solvent.Asillustrated in theFigure,the asymmetricunit of title compound contains one Tb(III) cation, one pyridine-2,5-dicarboxylate anion, one picolinate anion and one coordinated water molecule.…”

Section: Discussionmentioning

confidence: 99%

Crystal structure of poly[aqua-(μ4-pyridine-2,5-dicarboxylato- κ5N,O:O’:O’’:O’’’)-(μ2-picolinato-κ2O:O’)-terbium(III)], C13H9N2O7Tb

Song

2015

Zeitschrift Für Kristallographie - New Crystal Structures

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C 13 H 9 N 2 O 7 Tb, monoclinic, P2 1 /c (no. 14), a =9.2251 (7) Source of materialAll chemicals were of reagent grade quality obtained from commercial sources and were used without further purification. The title compound was prepared under ionothermal conditions using the ionic liquid 1-ethyl-3-methylimidazolium ([Emim]Br) as solvent. The title compound was prepared from am ixture of terbium(III) nitrate hexahydrate (0.45 g, 1m mol), pyridine-2,5-dicarboxylic acid (0.24 g, 1.5 mmol), nicotinic acid (0.25 g, 2 mmol) and [Emim]Br (1.0 g, 5.23 mmol). The mixture was stirred for half an hour, and then transferred into aTeflon-lined stainless steel autoclave (50 ml)and heated at 438 Kfor 7d.After the mixture had been cooled slowly to room temperature, colourless rodshaped crystals were obtained. The product was filtered off, washed with deionized water and dried in avacuum desiccator at ambient temperature (yield 36 %, based on terbium(III) nitrate hexahydrate). It is worth noting that, the title compound can also be obtained using ionic liquid 1-methyl-3-butylimidazolium bromide ([Bmim]Br) as solvent. In order to confirm the chemical composition of the title compound, C, H, and Nelements analysis were performedo naP erkinElmer 2400II elemental analyzer. Anal.c alcd.( %) for C 13 H 9 N 2 O 7 Tb: C, 33.64; H, 1.95; N, 6.04. Found (%): C, 33.91; H, 1.69; N, 5.88. The results support the formula of the title compound. Experimental detailsThe Hatomsbonded to Cwere positioned geometrically and refined using ariding model, with C-H =0.93 Åand with U iso (H) = 1.2 times U eq (C). The Hatoms bonded to O1W were located from Fourierd ifferencem apsa nd refinedw ithd istancer estraintso f O1W-H1WA=0.83 Åand O1W-H1WB=0.83 Å. DiscussionThere has been growing interest in the design and synthesis of lanthanide-based coordination polymers motivated by their fascinating structure and the exploitable applications in luminescent materials, molecular adsorption, bimetallic catalysis and so on [1-6].T he polycarboxylic ligands have been proved to be extremelyversatile organicligands due to thefactthattheycan exhibit flexible coordination modes, including chelating, bidentate bridging or chelating bridging modes [7,8]. As an extension of research toward rational design and preparation of lanthanide coordination polymer, we recently have isolated anovel three-dimensional terbium (III) coordinated polymer containing two types of ligands (pyridine-2,5-dicarboxylate and picolinate) [Tb(C 7 H 3 NO 4 )(C 6 H 4 NO 2 )(H 2 O)] n under ionothermal conditions using the ionicliquid1-ethyl-3-methylimidazolium([Emim]Br) as solvent.Asillustrated in theFigure,the asymmetricunit of title compound contains one Tb(III) cation, one pyridine-2,5-dicarboxylate anion, one picolinate anion and one coordinated water molecule. Within the structure, Tb(III) cation is coordinated by seven oxygen atomsand one Natom,exhibiting adistorted bicapped trigonal prismatic geometry, among which, six oxygen atomsare derived from carboxylate groups and one oxygen at...

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Section: Discussionmentioning

confidence: 99%

“…In the fields of coordination chemistry, carboxylic ligands like oxalic acid and pyridine-2,6-dicarboxylic acid have been extensively used, based on their diverse coordination modes and rich hydrogen bonding interactions [1][2][3]. Many complexes, constructed from oxalic acid or pyridine-2,6-dicarboxylic acid ligands with potential as functional materials in magnetism, catalysis and photo-luminescence, have been synthesized [4][5][6][7].…”

Section: Discussionmentioning

confidence: 99%

Crystal structure of {(oxalato)-bis-[(pyridine-2,6-di-carboxylato)-diaqua)- indium(III)]}dihydrate: [In(C2O4)(C7H3N1O4)2(H2O)4]·2H2O, C16H18In2N2O18

Xiao

al.²

2012

Zeitschrift für Kristallographie - New Crystal Structures

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C 16 H 18 In 2 N 2 O 18, triclinic, P1 (no. 2), a =6 .7024(3)Å , b =7 .2135(4)Å, c =1 2.2077(6)Å, a =9 0.281(1)°, b=104.976(1)°, g =9 9.427(1)°, V =5 61.78(5)Å 3 , Z =1 , R gt (F) =0.0268, wR ref( F 2 ) =0.0836, T =298(2) K. Source of materialThetitle compound was synthesized by ahydrothermalmethod from amixture of In(NO 3 ) 3 (0.11g, 0.36 mmol), pyridine-2,6-dicarboxylic acid (0.089g, 0.53 mmol), 2,2'-dipyridylamine (0.33 mmol, 0.056g) and distilled water (18.0 mL) in a30mLTeflon-lined stainless steelreactor. The solution was heated at 423 Kfor five days and then cooled slowly to room temperature. Good quality colourless crystals of the title compound were collected for X-ray analysis. Experimental detailsThe all Ha toms were positioned geometrically anda llowed to ride on theirparentatoms at distances of Csp 2 -H =0.93Å with U iso =1.2U eq and O-H =0.85Å with U iso =1.5U eq . DiscussionIn the fields of coordination chemistry, carboxylic ligands like oxalic acid and pyridine-2,6-dicarboxylic acid have been extensively used, based on their diverse coordination modes and rich hydrogen bonding interactions [1][2][3]. Many complexes, constructed from oxalic acid or pyridine-2,

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Synthesis, structure and luminescent properties of 3D lanthanide (La(III), Ce(III)) coordination polymers possessing 1D nanosized cavities based on pyridine-2,6-dicarboxylic acid

Cited by 30 publications

References 34 publications

Pyridine-2,6-dicarboxylic acid for the sensitization of europium(iii) luminescence with very long lifetimes

Pyridine-2,6-dicarboxylic acid for the sensitization of europium(iii) luminescence with very long lifetimes

Crystal structure of poly[aqua-(μ4-pyridine-2,5-dicarboxylato- κ5N,O:O’:O’’:O’’’)-(μ2-picolinato-κ2O:O’)-terbium(III)], C13H9N2O7Tb

Crystal structure of {(oxalato)-bis-[(pyridine-2,6-di-carboxylato)-diaqua)- indium(III)]}dihydrate: [In(C2O4)(C7H3N1O4)2(H2O)4]·2H2O, C16H18In2N2O18

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