The recognition of nitroaromatic explosives by a tetrakis-tetrathiafulvalene-calixpyrrole receptor (TTF-CP) yields a "turn on" and fingerprinting response in the resonance Raman scattering observed in solution and the solid state. Intensity changes in nitro vibrations with analyte complexation occur via a mechanism of resonance between the 785 nm laser line and the strongly absorbing charge-transfer chromophore arising from the complex between electron-donating TTF-CP and electron-accepting nitroaromatic explosives. The addition of chloride forms the Cl-·TTF-CP complex resetting the system for reuse.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Surfaces, Coatings and Films
- Metals and Alloys
- Materials Chemistry