Vibronic spectra and details of the structure of europium nitrates with derivatives of 1,10-phenanthroline

Tsaryuk, V. I.; Zolin, V. F.; Puntus, Lada N.; Savchenko, V. D.; Legendziewicz, J.; Sokolnicki, J.; Szostak, Roman

doi:10.1016/s0925-8388(99)00720-3

Cited by 36 publications

(23 citation statements)

References 14 publications

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“…Unlike the spectra in ref. [22] , a band at 1385 cm -1 is evident in Figure 2 (a) for the samples prepared as KBr discs, which has been attributed to the ν 3 (D 3h ) mode of liberated NO 3 -. The most intense bands in the range 1400-1650 cm -1 in the Raman spectra correspond to the stretching vibrations of the aromatic ν(C=C) and heterocyclic ring ν(C=N) modes.…”

Section: Ir and Raman Spectramentioning

confidence: 95%

“…The most intense bands in the range 1400-1650 cm -1 in the Raman spectra correspond to the stretching vibrations of the aromatic ν(C=C) and heterocyclic ring ν(C=N) modes. [22] Discussions of these bands in the FTIR spectra have been in-cluded elsewhere. [22,23] The Raman spectra in Figure 2 (b) show the shifts of the bands in this region more clearly.…”

Section: Ir and Raman Spectramentioning

confidence: 98%

“…[22] Discussions of these bands in the FTIR spectra have been in-cluded elsewhere. [22,23] The Raman spectra in Figure 2 (b) show the shifts of the bands in this region more clearly. The strongest feature in the Raman spectrum of the phen·H 2 O ligand is at 1407 cm -1 , which corresponds to coupled ringstretching vibrations.…”

Section: Ir and Raman Spectramentioning

confidence: 98%

“…They are particularly complicated and the detailed assignment of I has been attempted by Tsaryuk et al [22] with the bands at 708, ca. 740, 813, 1030, ca.…”

Section: Ir and Raman Spectramentioning

confidence: 99%

“…Tsaryuk and co-workers compared the effect of the size of the ligands and their effective charge upon the crystal structures and also upon the vibronic emission spectra of europium nitrates with 1,10-phenanthroline derivatives: 3,4,7,8-tetramethylphenanthroline, 5-methylphenanthroline, 4,7-diphenylphenanthroline and 5-nitrophenanthroline. [22][23][24] More recently, Puntus and co-workers investigated the structures and luminescence spectra of lanthanide complexes with phen, chloride ions and aqua ligands. [28][29][30] In the work reported herein we synthesized the phen and substituted phen complexes [Eu(NO 3 ) 3 2 ] (I-5c).…”

Section: Introductionmentioning

confidence: 99%

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Crystal Structure, Spectroscopy and Crystal Field Analysis of Substituted 1,10‐Phenanthroline–Europium Complexes

et al. 2011

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Crystal structures and vibrational and electronic spectroscopic data are reported for europium(III) complexes with 5(or 4)-R-1,10-phenanthroline (phen) ligands (R = chloro, methyl, nitro, amino). All complexes comprise a 10-coordinate Eu 3+ ion with three chelating nitrato anions and two bidentate phen ligands. The crystal structures are of three distinct types with space groups C2/c, P2 1 /n and P1. The roomtemperature emission spectra are dominated by the forced electric dipole 5 D 0 Ǟ 7 F 2 emission of Eu 3+ . The excitation spectra show that the triplet donor state of the nitro-substituted complex has a lower energy than the other complexes and the lower luminescence quantum efficiency of this complex is rationalized. The emission spectra recorded at 10 K

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Section: Ir and Raman Spectramentioning

confidence: 95%

Section: Ir and Raman Spectramentioning

confidence: 98%

Section: Ir and Raman Spectramentioning

confidence: 98%

“…They are particularly complicated and the detailed assignment of I has been attempted by Tsaryuk et al [22] with the bands at 708, ca. 740, 813, 1030, ca.…”

Section: Ir and Raman Spectramentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Crystal Structure, Spectroscopy and Crystal Field Analysis of Substituted 1,10‐Phenanthroline–Europium Complexes

et al. 2011

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Synthesis, Structure, Thermal Stability, and Magnetic and Luminescence Properties of Dinuclear Lanthanide(III) Pivalates with Chelating N‐Donor Ligands

et al. 2012

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New dinuclear lanthanide pivalate complexes [Tb2(piv)6(Hpiv)6], [Tb2(piv)6(bpy)2], [Tb2(piv)6(phen)2], [Tb2(piv)6(bath)2]·1.5EtOH, and [Eu2(piv)6(bath)2]·2EtOH, as well as the coordination polymer {Tb(piv)3}n, in which piv = (CH3)3CCO2–, bpy = 2,2′‐bipyridine, phen = 1,10‐phenanthroline, bath = 4,7‐diphenyl‐1,10‐phenanthroline, and EtOH = ethanol, were synthesized and characterized by X‐ray diffraction. For the terbium complexes, the magnetic properties and the solid‐state thermolysis were investigated. The phase composition of the solid decomposition products was determined by X‐ray powder diffraction. The photophysical properties of these complexes were analyzed by luminescence, excitation, and phosphorescence spectroscopy, and by lifetime measurements. A comparison of the photophysical data for bpy, phen, and bath complexes shows that the supramolecular organization affects the efficiency of the sensitization of Ln3+ luminescence. All the results obtained provide good prospects for the use of dinuclear lanthanide pivalate complexes as efficient light‐conversion molecular devices (LCMD).

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Substituted Phenanthrolines as Antennae in Luminescent Eu^III Complexes

et al. 2013

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Eight novel europium(III)‐based coordination compounds with 1,10‐phenanthroline (phen) ligands with a chloro, methoxy, ethoxy, cyano, carboxylic acid, methyl carboxylate, ethyl carboxylate, and amino substituent on the 2‐position have been prepared in yields ranging from 43 to 89 %. Additionally, one lanthanum(III) coordination compound of 2‐amino‐1,10‐phenanthroline has been isolated. All compounds have the general formula [Ln(L)2(NO3)3], except for the compound with the carboxylate ligand, which has the formula [Eu(O2Cphen)3]. Three of the EuIII complexes as well as the LaIII compound crystal structures have been determined, all of which show similar N4O6 coordination spheres for the LnIII ion. Seven compounds exhibit bright luminescence that is characteristic of EuIII upon irradiation with near‐UV radiation, thus indicating efficient ligand‐to‐metal energy transfer. The complex with 2‐amino‐1,10‐phenanthroline is nonluminescent. The solid‐state photoluminescent quantum yields range from 10 to 79 %, and the luminescence lifetimes vary from 0.43 to 1.57 ms. Analysis of the spectral intensities with the Judd–Ofelt theory shows a significant contribution of nonradiative processes that quench the luminescence of the 5D0 level on EuIII.

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Vibronic spectra and details of the structure of europium nitrates with derivatives of 1,10-phenanthroline

Cited by 36 publications

References 14 publications

Crystal Structure, Spectroscopy and Crystal Field Analysis of Substituted 1,10‐Phenanthroline–Europium Complexes

Crystal Structure, Spectroscopy and Crystal Field Analysis of Substituted 1,10‐Phenanthroline–Europium Complexes

Synthesis, Structure, Thermal Stability, and Magnetic and Luminescence Properties of Dinuclear Lanthanide(III) Pivalates with Chelating N‐Donor Ligands

Substituted Phenanthrolines as Antennae in Luminescent Eu^III Complexes

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Vibronic spectra and details of the structure of europium nitrates with derivatives of 1,10-phenanthroline

Cited by 36 publications

References 14 publications

Crystal Structure, Spectroscopy and Crystal Field Analysis of Substituted 1,10‐Phenanthroline–Europium Complexes

Crystal Structure, Spectroscopy and Crystal Field Analysis of Substituted 1,10‐Phenanthroline–Europium Complexes

Synthesis, Structure, Thermal Stability, and Magnetic and Luminescence Properties of Dinuclear Lanthanide(III) Pivalates with Chelating N‐Donor Ligands

Substituted Phenanthrolines as Antennae in Luminescent EuIII Complexes

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Substituted Phenanthrolines as Antennae in Luminescent Eu^III Complexes