Mono- and Di-Gold(I) Naphthalenes and Pyrenes: Syntheses, Crystal Structures, and Photophysics
| Autor: | Arthur J. Esswein, Lei Gao, Miya A. Peay, David V. Partyka, James B. Updegraff, Allen D. Hunter, Matthias Zeller, Thomas G. Gray, Thomas S. Teets |
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| Rok vydání: | 2009 |
| Předmět: |
inorganic chemicals
chemistry.chemical_classification Aryl Organic Chemistry chemistry.chemical_element Crystal structure Photochemistry Inorganic Chemistry chemistry.chemical_compound Hydrocarbon chemistry Polymer chemistry Pyrene Physical and Theoretical Chemistry Carbene Phosphine Palladium Naphthalene |
| Zdroj: | Organometallics. 28:5669-5681 |
| ISSN: | 1520-6041 0276-7333 |
| Popis: | (Phosphine)- and (N-heterocyclic carbene)gold(I) derivatives of naphthalene and pyrene are reported, containing one or two gold atoms per hydrocarbon. The new complexes are prepared by arylation of gold(I) substrates by arylboronic acids or aryl pinacolboronate esters in the presence of cesium carbonate. Isolated yields range from 52% to 98%. The boron precursors themselves derive from the parent hydrocarbon, where boron is installed in an iridium-catalyzed reaction, or from the aromatic bromides, which are borylated with palladium catalysis. Most of the new gold(I) complexes are air- and moisture-stable colorless solids; they are characterized by multinuclear NMR and optical spectroscopy, combustion analysis, and high-resolution mass spectrometry. X-ray diffraction crystal structures are reported for seven. Gold binding red-shifts optical absorption profiles, which are characteristic of the aromatic skeleton. All compounds show triplet-state luminescence, and dual singlet and triplet emission occurs in s... |
| Databáze: | OpenAIRE |
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