Synthesis, structure and photoluminescence of novel lanthanide (Tb(III), Gd(III)) complexes with 6-diphenylamine carbonyl 2-pyridine carboxylate

An, Bao-Li; Gong, Maogang; Cheah, Kok-Wai; Wong, Wai‐Kwok; Zhang, Jiming

doi:10.1016/j.jallcom.2003.07.020

Cited by 17 publications

(3 citation statements)

References 14 publications

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“…According to reports in the literature, assign stretches of C-N are reported at 1184, 1367, and 1373 cm −1 for different compounds [52][53][54]. For compound 4c the bands at 1390 and 1332 cm −1 are assigned to the C-N stretching modes and theoretically (DFT) at 1126 (1082), 1185 (1138) and 1350 (1297) cm −1 .…”

Section: C-n Vibrationsmentioning

confidence: 90%

Computational and Experimental Study on Molecular Structure of Benzo[g]pyrimido[4,5-b]quinoline Derivatives: Preference of Linear over the Angular Isomer

et al. 2017

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A series of 5-aryl-2-methylthio-5,12-dihydrobenzo[g]pyrimido [4,5-b]quinoline-4,6,11(3H) -trione was synthesized through an environmental friendly multicomponent methodology and characterized with FT-IR (Fourier Transform infrared spectroscopy), 1 H NMR (Nuclear Magnetic Resonance ), 13 C NMR and GC-MS (gas chromatography-mass spectrometry). The 5-(4-methoxyphenyl)-2-methylthio-5,12-dihydrobenzo[g]pyrimido [4,5-b]quinoline-4,6,11(3H)-trione 4c compound was characterized by X-ray single crystal diffraction. The geometry of 4c has been fully optimized using DFT (Density functional theory), B3LYP functional and 6-31G(d,p) basis set, thus establishing the ground state energy and thermodynamic features for the mentioned compound, which are in accordance with the experimental data and the crystal structure. The experimental results reveal a strong preference for the regioselective formation of 4c linear four fused rings over the angular four fused and suggest a possible kinetic control in product formation.

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Section: C-n Vibrationsmentioning

confidence: 90%

Computational and Experimental Study on Molecular Structure of Benzo[g]pyrimido[4,5-b]quinoline Derivatives: Preference of Linear over the Angular Isomer

et al. 2017

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“…This behaviour is in agreement with previous findings with related coordination compounds. 25, 41, 64 More importantly, it suggests that these compounds are highly stable at room-temperature. To estimate whether or not 1 Eu and 2 Tb suffer from any photobleaching, samples were irradiated at 254 nm using a low-pressure Hg-lamp (6 Watt).…”

Section: Stability Studiesmentioning

confidence: 99%

Efficient, stable, tunable, and easy to synthesize, handle and recycle luminescent materials: [H2NMe2]3[Ln(iii)(2,6-dipicolinolate)3] (Ln = Eu, Tb, or its solid solutions)

et al. 2010

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Three compounds with the general formulae [H(2)N(Me)(2)](3)[Ln(2,6-dpa)(3)] were prepared from cheap and readily available reactants. Microcrystalline compounds could be isolated in high yields (>80%) by a simple filtration, after only one hour reaction time in refluxing DMF. The Eu and Tb compounds have been structurally characterized by single crystal X-ray diffraction. The compounds have unusual high-absorption coefficients (>95%) and quantum efficiencies (approximately 70%). Furthermore, they are thermally stable up to 250 degrees C and appear to be UV and water tolerant. The emission colour of the final compound can be easily fine-tuned, by varying the Eu:Tb ratio during the preparation.

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“…7 F 6 is mainly an electronic dipole transition, which is greatly influenced by the ligand field, while the emission to 5 D 4 ? 7 F 5 belonging to mainly a magnetic dipole transition, which is less influenced by the ligand field [35]. Besides, these bands in the short wavelength region cannot be clearly found in the spectra of terbium hybrids, suggesting that there exist more effective energy transfer process in the terbium hybrids than europium ones.…”

Section: Photophysical Propertiesmentioning

confidence: 96%

Chemically bonded metallic (Eu, Tb, Zn) hybrid materials through sulfide linkage: Molecular construction, physical characterization and photophysical properties

Yan

Qian

2009

Journal of Organometallic Chemistry

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Synthesis, structure and photoluminescence of novel lanthanide (Tb(III), Gd(III)) complexes with 6-diphenylamine carbonyl 2-pyridine carboxylate

Cited by 17 publications

References 14 publications

Computational and Experimental Study on Molecular Structure of Benzo[g]pyrimido[4,5-b]quinoline Derivatives: Preference of Linear over the Angular Isomer

Computational and Experimental Study on Molecular Structure of Benzo[g]pyrimido[4,5-b]quinoline Derivatives: Preference of Linear over the Angular Isomer

Efficient, stable, tunable, and easy to synthesize, handle and recycle luminescent materials: [H2NMe2]3[Ln(iii)(2,6-dipicolinolate)3] (Ln = Eu, Tb, or its solid solutions)

Chemically bonded metallic (Eu, Tb, Zn) hybrid materials through sulfide linkage: Molecular construction, physical characterization and photophysical properties

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