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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Axtell, Jonathan C. Gonzalez, Alejandra Kirlikovali, Kent O. Khan, Saeed I. Phung, Alice C. Spokoyny, Alexander M. |
| Copyright Year | 2016 |
| Abstract | We report the synthesis and characterization of a series of d8 metal complexes featuring robust and photophysically innocent strong-field chelating 1,1′-bis(o-carborane) (bc) ligand frameworks. A combination of UV-Vis spectroscopy, single crystal X-ray structural analysis, and DFT calculations of these species suggest that the dianionic bc ligand does not contribute to any visible metal-to-ligand charge transfer (MLCT) transitions, yet it provides a strong ligand field in these complexes. Furthermore, a bc-based Pt(II) complex containing a 4,4′-di-tert-butyl-2,2′-bipyridine ligand (dtb-bpy) has been prepared and was found to display blue phosphorescent emission dominated by MLCT from the Pt(II) center to the dtb-bpy ligand. Importantly, the bulky three-dimensional nature of the bc ligand precludes intermolecular Pt(II)⋯Pt(II) interactions in the solid state where the resulting compounds retain their emission properties. This study opens a potentially new avenue for designing organic light-emitting diode (OLED) materials with tunable properties featuring photophysically innocent boron-rich cluster ligands. |
| Starting Page | 5132 |
| Ending Page | 5138 |
| Page Count | 7 |
| File Format | HTM / HTML PDF |
| ISSN | 20416520 |
| Volume Number | 7 |
| Issue Number | 8 |
| Journal | Chemical Science |
| DOI | 10.1039/c6sc01146b |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Subscribed |
| Subject Keyword | X-ray crystallography Ultraviolet\u2013visible spectroscopy Ligand Bipyridine Ligand field theory Light-emitting diode |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry |
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