Fluorination of [ScCl (Me -tacn)] (Me -tacn = 1,4,7-trimethyl-1,4,7-triazacyclononane) and [ScCl (BnMe -tacn)] (BnMe -tacn = 1,4-dimethyl-7-benzyl-1,4,7-triazacyclononane) by Cl/F exchange with 3 mol. equiv. of anhydrous [NMe ]F in CH CN solution yields the corresponding [ScF (R -tacn)] (R = Me or BnMe ). These are the first examples of scandium fluoride complexes containing neutral co-ligands. The fluorination occurs stepwise, and using a deficit of [NMe ]F produced [ScF Cl(Me -tacn)].
