0000000001304863
AUTHOR
João Carlos Lima
Intra- vs Intermolecular Aurophilic Contacts in Dinuclear Gold(I) Compounds: Impact on the Population of the Triplet Excited State.
Two series of dinuclear gold(I) complexes that contain two Au–chromophore units (chromophore = dibenzofurane or dimethylfluorene) connected through a diphosphane bridge that differs in the flexibility and length (diphosphane = dppb for 1,4-bis(diphenylphosphino)butane, DPEphos for bis[(2-diphenylphosphino)phenyl]ether, xanthphos for 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene, and BiPheP for 2,2′-bis(diphenylphosphino)-1,1′-biphenyl) have been synthesized and structurally characterized. Their photophysical properties have been carefully investigated, paying attention to the role of the presence, or absence, of aurophilic contacts and their nature (intra- or intermolecular character). Th…
A coumarin based gold(I)-alkynyl complex: a new class of supramolecular hydrogelators
A phosphine-gold(I)-alkynyl-coumarin complex, [Au{7-(prop-2-ine-1-yloxy)-1-benzopyran-2-one}- (DAPTA)] (1), was synthesized and the formation of long luminescent fibers in solution was characterized via fluorescence microscopy and dynamic light scattering. The fibers presented strong blue and green luminescence, suggesting that the gold(I) in the complex increased intersystem crossing due to the heavy atom effect, resulting in a significant increase in triplet emission. The X-ray structure of the fibers indicates that both aurophilic, π–π interactions and hydrogen bonding contribute to their formation in aqueous solvents. peerReviewed
CCDC 1844227: Experimental Crystal Structure Determination
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CCDC 2031247: Experimental Crystal Structure Determination
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CCDC 955661: Experimental Crystal Structure Determination
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CCDC 1844228: Experimental Crystal Structure Determination
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CCDC 1970146: Experimental Crystal Structure Determination
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CCDC 1561541: Experimental Crystal Structure Determination
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CCDC 955660: Experimental Crystal Structure Determination
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CCDC 2019550: Experimental Crystal Structure Determination
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CCDC 2019549: Experimental Crystal Structure Determination
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CCDC 1559283: Experimental Crystal Structure Determination
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CCDC 1844226: Experimental Crystal Structure Determination
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CCDC 1026387: Experimental Crystal Structure Determination
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CCDC 2019551: Experimental Crystal Structure Determination
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CCDC 2019745: Experimental Crystal Structure Determination
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CCDC 1970145: Experimental Crystal Structure Determination
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CCDC 2031248: Experimental Crystal Structure Determination
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CCDC 2019552: Experimental Crystal Structure Determination
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CCDC 1844229: Experimental Crystal Structure Determination
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