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Nine-core gold cluster compound and synthesis method thereof

A synthesis method and technology of clusters, applied in chemical instruments and methods, compounds of Group 5/15 elements of the periodic table, luminescent materials, etc., can solve problems such as gold clusters that have not been reported, and achieve high yield , high stability and simple preparation method

Active Publication Date: 2013-11-27
XIAMEN UNIV
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Problems solved by technology

[0005] There have been some reports on the synthesis of gold clusters and liquid-state luminescence, but there has been no report on liquid-state strong light-emitting gold clusters with pyridylphosphine ligands.

Method used

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  • Nine-core gold cluster compound and synthesis method thereof
  • Nine-core gold cluster compound and synthesis method thereof
  • Nine-core gold cluster compound and synthesis method thereof

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Embodiment Construction

[0030] The present invention will be further described below through embodiment and accompanying drawing.

[0031] 1. Synthesis of bis, hexa-diphenylphosphino-pyridine (PNP): The method described in the literature (J. Org. Chem., 1978, 43, 947) was improved. Mix diphenylphosphine and butyllithium in tetrahydrofuran at 0°C under a nitrogen atmosphere, stir, and set aside. Dissolve 2,6-dichloropyridine in tetrahydrofuran at -78°C under a nitrogen atmosphere, slowly transfer the above-mentioned ready-to-use solution into it, stir overnight, and gradually warm up to room temperature. The solvent was pumped dry, the reaction was quenched by adding water, and extracted with dichloromethane. The organic layer is collected, and the product is separated with a silica gel column, and its chemical structural formula is as follows:

[0032]

[0033] 2. Compound [(PNP) 2 Au 2 ](BF 4 ) 2 : Two, hexa-diphenylphosphino-pyridine (223.5mg, 0.50mmol) was dissolved in 10mL of dichloromet...

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Abstract

The invention discloses a nine-core gold cluster compound and a synthesis method thereof, relates to a gold cluster compound, and provides the nine-core gold cluster compound which is higher in stability and capable of emitting strong light in a liquid state, as well as a synthesis method thereof. The molecular formula of the nine-core gold cluster compound is [Au9(PC17NH13)6](BF4)3. The synthesis method comprises the following steps: mixing diphenylphosphine and butyl lithium in tetrahydrofuran to obtain a solution A; dissolving 2,6-dichloropyridine in tetrahydrofuran, and adding into the solution A; pumping out the solvent, adding water for carrying out quenching reaction, using dichloromethane to extract, collecting an organic layer, separating by a silicagel column to obtain 2,6-diphenyl phosphino-pyridine; dissolving in dichloromethane, adding Me2SAuCl, stirring, adding AgBF4, filtering, removing the solvent to obtain a compound [(PNP)2Au2](BF4)2; dissolving the compound [(PNP)2Au2](BF4)2 in dichloromethane, and adding a methanol solution which is dissolved with KOH and NaBF4, removing the solvent after refluxing, and extracting by dichloromethane to obtain the nine-core gold cluster compound.

Description

technical field [0001] The invention relates to a gold cluster compound, in particular to a nine-nuclear gold cluster compound with high stability and strong luminescence in its solution under ultraviolet light and a synthesis method thereof. Background technique [0002] Due to their important roles in OLEDs, probes, biological detection and labeling, luminescent metal compounds have attracted the attention of more and more scientists (Coord.Chem.Rev.2006, 250, 2093-2126). At present, more research focus is shifted to polynuclear gold compounds because of their high-intensity and long-lived luminescent properties in the visible region. In many cases, the interaction between gold and gold plays an important role that cannot be ignored. This is because gold exhibits a higher spin coupling constant among many metals and prefers groups with lower emission triplet states, which also leads to They generally emit light of a phosphorescent nature. [0003] At present, examples of...

Claims

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Application Information

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IPC IPC(8): C07F9/58C09K11/06
Inventor 王泉明雷振
Owner XIAMEN UNIV
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