期刊
LANGMUIR
卷 32, 期 26, 页码 6713-6722出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.langmuir.6b01995
关键词
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资金
- Czech Science Foundation [P205/14-14608S]
- Programme of Project Based Personal Exchange Czech Republic - Germany - Ministry of Education of the Czech Republic [7AMB16DE007]
- DAAD [57220012]
This is the first experimental evidence that both self-assembly and surface activity are common features of all water-soluble boron cluster compounds. The solution behavior of anionic polyhedral boranes (sodium decaborate, sodium dodecaborate, and sodium mercaptododecaborate), carbovranes (potassium 1-carba-dodecaborate), and metallacarboranes {sodium [cobalt bis(1,2-dicarbollide)]} was extensively studied, and it is evident that all the anionic boron dusters form multimolecular aggregates in water. However, the mechanism of aggregation is dependent on size and polarity. The series of studied dusters spans from a small hydrophilic decaborate-resembling hydrotrope to a bulky hydrophobic cobalt bis-(dicarbollide) behaving like a classical surfactant. Despite their pristine structure resembling Platonic solids, the nature of anionic boron duster compounds is inherently amphiphilic-they are stealth amphiphiles.
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