Tetracationic cyclophanes and their use in the sequestration of polyaromatic hydrocarbons by way of complexation
US9290495B2 · kind B2 · utility
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Key dates
| Filing date | Dec 20, 2013 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Dec 26, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/212
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Novel tetracationic cyclophanes incorporating π-electron poor organic compounds into their ring structures, as well as methods of making the cyclophanes, are provided. The cyclophanes are able to form electron donor-acceptor complexes with a variety of polyaromatic hydrocarbons (PAHs) ranging in size, shape, and electron density. Also provided are methods of using the cyclophanes in the sequestration of PAHs in liquid or gaseous samples, the separation of PAHs from liquid or gaseous samples, the detection of PAHs in liquid samples, and the exfoliation of graphene via pseudopolyrotaxane formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.