Cation-sensing composite structure and compounds for use therein
US5958782A · kind A · utility
45Cited by
25References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1997 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Feb 27, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N31/221
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fluorescent ionophoric compound is disclosed that includes a complexing moiety, such as a cryptand or crown-ether portion, and a fluorescing moiety such as a coumarin portion. The coumarin portion may be substituted at the 3-position with an electron withdrawing or polarizable group such as a substituted aromatic group or a substituted heterocyclic group having a heteroatom in at least one of its alpha positions. The compound, which exhibits good photostability, can be incorporated into cation-sensing composite structures by means of convenient points of covalent attachment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.