in acetonitrile MeN4Cl adding to the polarographic test soln. prepared from SnCl4*5H2O in acetonitrile containing a ligand in a molar ratio 2:1 and 1 M Pr4NClO4 as a supporting electrolyte under N2; detected polarographically;
Hoare, Jason L.; Cavell, Kingsley J.; Hecker, Richard; Skelton, Brian W.; White, Allan H.
Journal of the Chemical Society - Dalton Transactions, 1996 , # 11 p. 2197 - 2205