| 查看: 369 | 回复: 0 | |||
[求助]
请教Au25 Cluster 合成 [Au25(SC8H17)18]−
|
|
请教关于Au25 Cluster 的合成，我重复Yuichi Negishi的papers。但是合成不出小的纳米粒子，UV-VIS没有450 640的峰。 乙腈离心后，clusters是溶于乙腈吗？丙酮萃取具体有什么步骤吗？ First, 20 mL of a toluene solution of (C8H17)4NBr (30 mM, 0.6 mmol) was added to 1.4 mL of an aqueous solution of HAuCl4 (0.14 M, 0.2 mmol). After vigorous stirring at room temperature for 30 min, 2 mL of an aqueous solution of NaBH4 (1 M, 2 mmol) was rapidly added to the solution. After 1 to 2 s, 3 mL of a toluene solution containing (C8H17Se)2 (1.5 mmol) was rapidly added to this solution. The solution’s color immediately changed from orange to dark red. The solution was stirred for 1 h. The organic phase was subsequently washed thoroughly with water and dried in an evaporator. The product was centrifuged at 3500 rpm with acetonitrile to remove byproducts such as (C8H17Se)2 and (C8H17)4NBr. The title compound was extracted from the dried product with a yield of 67% using acetone. 打扰，谢谢啦。 ![请教Au25 Cluster 合成 [Au25(SC8H17)18]−](https://muchongimg.xmcimg.com/data/bcs/2014/1211/w242h1853330_1418274034_104.png#opennewwindow) Screen Shot 2014-12-10 at 11.12.48 PM.png |
回复此楼» 猜你喜欢
济南大学国家优青课题组 2026 调剂招生来啦
已经有0人回复
-
武汉纺织大学_化学院官方调剂群-院士团队招生-学生自由度高发展好-欢迎各位同学
已经有0人回复
-
金属材料论文润色/翻译怎么收费?
已经有296人回复
-
西华大学 化学 调剂有名额
已经有0人回复
-
上海应用技术大学招生调剂研究生
已经有8人回复
-
南京晓庄学院绿色能源材料团队招生
已经有0人回复
-
南京晓庄学院绿色能源材料团队招生
已经有0人回复
-
北方工业大学储能技术-02电化学储能与氢能方向招收2026级二次调剂学生
已经有0人回复
» 本主题相关商家推荐: (我也要在这里推广)
