William B McCormack, Charles A Sandy: Hexacoordinated transition metal compounds containing at least one polyfluoroalkyl substituent. E I du pont de Nemours & Company, James A Costello, December 25, 1979: US04180386 (12 worldwide citation)

Hexacoordinated transition metal compounds, useful as antiknocks, having the structure ##STR1## wherein M is a divalent metal selected from the group Mn, Fe, Co and Ni,

William B McCormack: Preparation of para-nitrobenzotrichloride. E I Du Pont de Nemours and Company, June 12, 1984: US04454360

Para-nitrobenzotrichloride is prepared by chlorinating nitrotoluene using an activated carbon catalyst. The process can use various cocatalysts such as bromine, iodine, PCl.sub.3, S.sub.2 Cl.sub.2, bromide salts, chloranil, air bubbles and phthalimide. The reaction is carried out at from 20.degree. ...