Related Experiment Video
Updated: Jul 5, 2026

Low-energy Cathodoluminescence for (Oxy)Nitride Phosphors
Published on: November 15, 2016
Oxoclusters of the lanthanides begin to resemble solid-state materials at very small cluster sizes: structure and NIR
Santanu Banerjee1, G Ajith Kumar, Richard E Riman
1Department of Chemistry and Chemical Biology, the State University of New Jersey, Piscataway, New Jersey 08854-8087, USA.
Abstract:
The reaction of Nd(SePh)3 with SeO2 and Hg in pyridine gives the dodecanuclear cluster [(py)18Nd12O6Se4(Se2)4(SePh)4(Se2Ph)2Hg2(SePh)4][(Hg(SePh)3]2. In this compound the 12 Nd(III) ions are stacked in four sets of Nd3, with pairs of tetrahedral oxo ligands separating the Nd3 planes and Se, SeSe, SePh, pyridine, and HgSePh groups encapsulating the oxo core. Both the Nd-O bond lengths and the geometries about the oxo ions are remarkably similar to those found in solid-state Nd2O3. Near-IR emission experiments indicate that the cluster emission properties are less intense than those of highly emissive (DME)2Nd(SC6F5)3 or (THF)8Nd8O2Se2(SePh)16 but brighter than the nonemissive solid-state compound Nd2O3. Intensity variations are interpreted in terms of concentration quenching and phonon relaxation.
Related Concept Videos
Electron Affinity
Qualitative Analysis
For instance, group IV...
Nuclear Stability
To hold positively charged protons together in the...
IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations
NMR Spectroscopy Of Amines
Other Nuclides: 31P, 19F, 15N NMR
While fluorine-19 and phosphorous-31 have high natural abundances (100%) and positive gyromagnetic ratios, nitrogen-15 has a low natural abundance and a negative gyromagnetic ratio. However, nitrogen-15 is still preferred over nitrogen-14 (which has a high...

