Some new polyhaloaryltin compounds, 2-BrC6F4SnMe3, (2-BrC6F4)2SnMe2, 1,2-C6F4(SnMe3)2, 1,4-C6F4(SnMe3)2 and 4-HC6F4SnMe3 have been synthesised from the appropriate polyhaloaryl-lithium reagent and dimethyl- or trimethyltin chloride. 1H and 19F NMR data for these compounds are reported. There is no evidence for intramoleeular Sn-Br interaction in 2-BrC6F4SnMe3 from the 1H NMR spectrum at - 60°. © 1969.