Journal ArticleDOI
Electronic Energy Levels in the Trivalent Lanthanide Aquo Ions. I. Pr3+, Nd3+, Pm3+, Sm3+, Dy3+, Ho3+, Er3+, and Tm3+
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TLDR
In this article, the free-ion energy-level schemes of the Pr3+, Nd3+, Pm3+, Sm3+, Dy3, Dy3+, Ho3+, Er3+, and Tm3+ aquo ions have been determined from their absorption spectra in dilute acid solution at 25°.Abstract:
The free‐ion energy‐level schemes of the Pr3+, Nd3+, Pm3+, Sm3+, Dy3+, Ho3+, Er3+, and Tm3+ aquo ions have been determined from their absorption spectra in dilute acid solution at 25°. Energy‐level assignments were made by comparison with crystal spectra, and on the basis of correlations between calculated and observed band intensities. For most of the ions, it was possible to identify several transitions giving rise to bands at energies as high as 45 000–50 000 cm−1. Sufficient numbers of assignments were made to justify inclusion of the effects of configuration interaction in the calculation of the energy‐level parameters. Variation of the electrostatic, spin–orbit coupling, and configuration‐interaction parameters across the lanthanide series is examined.read more
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Structural, optical and physical analysis of B2O3–SiO2–Na2O–PbO–ZnO glass with Sm3+ ions for reddish–orange laser emission
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TL;DR: In this article, structural, physical and spectral studies of borosilicate glasses were conducted by using FTIR spectra and EDAX to establish the elemental composition of these materials.
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Tailored optical properties of Dy3+ doped magnesium zinc sulfophosphate glass: Function of silver nanoparticles embedment
TL;DR: In this paper, the role of silver nanoparticles (Ag NPs) inclusion on the spectroscopic and the physical properties of synthesized glasses were determined, and the calculated J-O parameter (Ω2) for the glass without Ag NPs incorporation was the highest, indicating the strong metal-ligand covalence bond.
Journal ArticleDOI
Mixed-ligand lanthanide complexes—VII. Complexes of 1,10-phenanthroline and thiocyanate☆
A.K. Azad Khan,Khalid Iftikhar +1 more
TL;DR: The thiocyanatoaqua-tris tris(1,10-phenanthroline)lanthanide(III)thIocyanates, [Ln(phen)3(H2O)(SCN)](SCN)2 (where Ln = LaIII and all trivalent lanthanides, except Pm and Lu) have been synthesized and characterized as mentioned in this paper.
Journal ArticleDOI
Controlling dimensionality via a dual ligand strategy in Ln-thiophene-2,5-dicarboxylic acid-terpyridine coordination polymers.
Korey P. Carter,Cecília H. F. Zulato,Cecília H. F. Zulato,Emille M. Rodrigues,Simon J. A. Pope,Fernando Aparecido Sigoli,Christopher L. Cahill +6 more
TL;DR: Eleven new lanthanide (Ln = Nd-Lu)-thiophene-2,5-dicarboxylic acid (25-TDC)-2,2':6',2''-terpyridine (terpy) coordination polymers which employ a dual ligand strategy have been synthesized hydrothermally and structurally characterized by single crystal and powder X-ray diffraction.
Journal ArticleDOI
Spectroscopy of upper energy levels in an $Er^{3+}$-doped amorphous oxide
TL;DR: In this article, the population mechanisms in erbium-doped amorphous aluminum oxide up to 2H11/2/4S3/2 levels were studied.
References
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TL;DR: In this article, the experimentally determined band intensities in the solution absorption spectra of the trivalent lanthanides were correlated with a theoretical expression derived by Judd, and the spectra were measured in a single medium, dilute acid solution, and, in most cases, in the range ≈6000-50 000 cm−1.
Journal ArticleDOI
The Spectra of the Doubly and Triply Ionized Rare Earths
G. H. Dieke,H. M. Crosswhite +1 more
TL;DR: The present status of our knowledge of the structure of the spectra of the rare earths is derived partly from experimental data of the emission spectra, which provides the energy level scheme in great detail but are difficult and laborious to analyze.