Resonance hybrids INDEX

The sydnones may be represented by structures (160a-d), of which the zwitterionic structures (160a,b) most clearly imply an aromatic sextet. p-Bromophenylsydnone (160 R-H, R -p-bromophenyl) is essentially planar. However, the O—N bond and 0(1)—C(5) bond lengths are not very different from normal single bond distances. Contributions of structures (160c,d) to the resonance hybrid are important, and the structural index of sydnone reveals its a rather low aromaticity (AN= 17%). 

Considerable interest also has been directed at the use of multicomponent composites where, in theory, the most useful properties from each phase can be realized in the whole. This includes metallodielectric structures where a metallic phase imparts, for example, a high index or more exotic effect (e.g., plasmon resonance) and a low-loss or property-tunable dielectric phase. The dielectric phase can be ceramic or polymeric and also has included ferroelectric polymers, embedded nanoparticles, and organic/inorganic hybrids. ... 

Optofluidics refers to the complementary hybridization of photonics and fluidics. Optofluidic characterizatiOTi is the analysis of a fluidic system by photonics, and vice versa. In particular, nanoscale optofluidic characterization is related to photonic phenomena based on the nanostructures. The photonic band-gap properties, surface plasmon resonance, or surface-enhanced Raman scattering sensitively change with the refractive index of the surrounding fluid or the specific binding of chemicals and biomolecules on the nanostructures. 

---