Abstract: A number of substituted a (1)-and/?(2)-fluoronaphthalenes with metallo substituents of the type MR,(when M is a group IVb metalloid; R= methyl) and HgX (X= halogen or aryl) in the 4, 6, and 7 positions have been synthesized and their fluorine nmr spectra have been measured. The'9F substituent chemical shift data (the extent to which a substituent electronically perturbs the CF neighborhood is indicated by the substituent ...