Atomic polarization in metal chelates. II. Dielectric loss measurements on some diketone chelates of tin(IV)

Abstract

Dipole moments and relaxation times determined by dielectric loss measurements at 3.109 and 9.400 GHz are reported for bis(pentane-2,4- dionato)dimethyltin(IV) and its dimethyl and diphenyl analogues with tropolone. All of these compounds show true orientation polarization in accord with the assignment of cis structures. High atomic polarizations are observed in all cases and it is suggested that this may be a characteristic of metal chelates in general.