PROXYL radical

By carrying out the encapsulation reaction in the presence of a varying concentration of 3-carboxy-PROXYL, the number of entrapped radicals could be varied from 0.3 to 6.0 molecules per dendritic box as determined by electron spin resonance (ESR) spectroscopy [36]. Tbe number of 3-carboxy-PROXYL radicals in the dendritic box does not increase above six (Figure 9), clearly demonstrating that... 

Figure 9 Number of 3-carboxy-PROXYL radicals trapped in the dendritic box, as determined by ESR spectroscopy, versus the molar ratio of radical and dendrimer in the initial solution prior to the encapsulation reaction...

Results of the EPR study of rotational diffusion (Tc) in viscous ionic hquids BmimBF4 and BmimPFe with proxyl radical (R5COOH) in a molecular and anionic forms were analysed in (Miyake et al., 2009). The experimental average values and activation energies for rotational diffusion disagreed with those calculated from fractional Stokes-Einstein-Debye equations. 

Pi4,6,6,6]2[Coii(DBSQ)2(bpy(COO)2)] have been realized. Imidazolium cation covalently linked to PROXYL radical moiety, also gives a new type of metal-free paramagnetic ionic liquids. 

Georges et al. showed the the formation of block copolymers of styrene with butadiene, isoprene, acrylate and methycrylate by use of TEMPO or Proxyl(2,2,5,5-tetramethyl-l-pyrrolidinyloxy) as stable counter radicals [163,164]. 

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