Vibronic spectra of Europium nitrate hexahydrate

Tsaryuk, V. I.; Savchenko, V. D.; Aryutkina, N. L.; Chenskaya, T. B.

doi:10.1007/bf02606351

Cited by 3 publications

(6 citation statements)

References 6 publications

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“…The wavenumber differences between these bands, centered at 605.6, 606.7, 607.1, and 607.4 nm (the accuracy is ca. ±0.02 nm), and the zero-phonon line (ZPL) at 580.87 nm are 704, 733, 743, and 752 cm –1 , respectively, and are in accordance with values published for VSBs of EuNO 3 entities in various compounds (Figure c); − e.g., in the Raman and VSB spectra of [Eu(NO 3 ) 3 (bpy) 2 ]·bpy, the in-plane deformation modes of bidentately bound nitrate ions were found at 706 (ν 5 ) and 735–742 (ν 3 ) cm –1 , respectively . Therefore, we assign the band at 704 cm –1 to ν 5 and the bands at 733, 743, and 752 cm –1 to ν 3 .…”

Section: Resultssupporting

confidence: 88%

“…If the nitrate is coordinated in a bidentate fashion, the symmetry is lowered ( C 2 v and lower). This leads to a splitting of the ν 4 ( E ′) vibration band (725 cm –1 ) to ν 5 ( A ) and ν 3 ( A ) with 710 and 740 cm –1 for C 1 symmetry . Those values may vary depending on the differences in the ligand field.…”

Section: Methodsmentioning

confidence: 99%

“…Those values may vary depending on the differences in the ligand field. The vibronic interactions in compounds containing europium nitrate were studied in refs – . We use the VSBs correlated to the ν 5 and ν 3 vibration transitions of coordinated nitrate because they do not overlap with the electronic transitions in the fluorescence spectra.…”

Section: Methodsmentioning

confidence: 99%

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Complexation of Europium(III) by Bis(dialkyltriazinyl)bipyridines in 1-Octanol

et al. 2011

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The present work focuses on highly selective ligands for An(III)/Ln(III) separation: bis(triazinyl)bipyridines (BTBPs). By combining time-resolved laser-induced fluorescence spectroscopy, nanoelectrospray ionization mass spectrometry, vibronic sideband spectroscopy, and X-ray diffraction, we obtain a detailed picture of the structure and stoichiometry of the first coordination sphere of Eu(III)-BTBP complexes in an octanolic solution. The main focus is on the 1:2 complexes because extraction studies revealed that those are the species extracted into the organic phase. The investigations on europium(III) complexes of BTBP with different triazin alkylation revealed differences in the formed complexes due to the bulkiness of the ligands. Because of the vibronic sidebands in the fluorescence spectra, we were able to detect whether or not nitrate ligands are coordinated in the first coordination sphere of the Eu-BTBP complexes. In solution, less sterically demanding BTBP offers enough space for additional coordination of anions and/or solvent molecules to form 9-coordinated Eu-BTBP 1:2 complexes, while bulkier ligands tend to form 8-fold-coordinated structures. We also report the first crystal structure of a Ln-BTBP 1:2 complex and that of its 1:1 complex, both of which are 10-coordinated.

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Section: Resultssupporting

confidence: 88%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Complexation of Europium(III) by Bis(dialkyltriazinyl)bipyridines in 1-Octanol

et al. 2011

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“…The different factors influencing the lanthanide vibronic spectra were studied in Refs. [12,13]. Resonant vibronic effect in the spectra of europium coordination compounds was discussed in Ref.…”

Section: Introductionmentioning

confidence: 99%

“…In our papers, vibronic spectra of the nitrates [10][11][12][13][14][15], halides [10], carboxylates [10,[16][17][18], and b-diketonates [19,20] with molecular structure have been considered. Vibronic spectra of oxides, oxysulfides, oxyhalogenides, garnets [11,21,22], etc.…”

Section: Introductionmentioning

confidence: 99%

Isotopic effect in the vibronic spectra of europium compounds

Tsaryuk

Zolin

Savchenko

2008

Journal of Luminescence

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Spectroscopic investigation of the different complexation and extraction properties of diastereomeric diglycolamide ligands

et al. 2022

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(2R,2′S)-2,2′-oxybis-(N,N-didecylpropanamide) (cis-mTDDGA) and (2R,2′R)-2,2′-oxybis-(N,N-didecylpropanamide) (trans-mTDDGA) were studied using time-resolved laser fluorescence spectroscopy (TRLFS), vibronic side-band spectroscopy (VSBS) and density functional theory calculations (DFT) to find reasons for their different extraction properties. Stability constants of the respective Cm(III) and Eu(III) complexes show cis-mTDDGA to be the superior ligand which is in agreement with results from extraction experiments. cis-mTDDGA extracts Cm(III) and Eu(III) as 1:3 complexes. In case of trans-mTDDGA, 1:2 complexes of the form [M(trans-mTDDGA)2(η1-NO3)(H2O)2]2+ (M = Cm, Eu) are extracted additionally to the 1:3 complexes. VSBS and DFT confirm the presence of inner-sphere nitrate in the 1:2 complex.

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Vibronic spectra of Europium nitrate hexahydrate

Cited by 3 publications

References 6 publications

Complexation of Europium(III) by Bis(dialkyltriazinyl)bipyridines in 1-Octanol

Complexation of Europium(III) by Bis(dialkyltriazinyl)bipyridines in 1-Octanol

Isotopic effect in the vibronic spectra of europium compounds

Spectroscopic investigation of the different complexation and extraction properties of diastereomeric diglycolamide ligands

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