Fitness isotropy

With the 30- and 32-membered hosts 89 and 91 and the guest 36 strong intermole-cular isotropy effects are observed, whereas the o-terphenyl macrocycle 96 seems to be too sinall for the guest 36 but seems to be exactly fitting for the smaller resordnol 81. 

Fig. 11. Quadrupole hyperfine spectrum of Np in Np metal. The bar diagram shows the decomposition into two quadrupole patterns meaning that Np occupies two lattice sites with different local symmetries. In both cases the electric field gradient is not rotationally symmetric (rj 0). The fit (solid line) includes the Goldanskii-Karyagin effect (see text). The dashed line shows the spectrum expected in case of full isotropy. [Taken from Dunlap et al. (1970).]...

---