4 ms·Element Tf = unobtanium?by gweinberg 3y agoElement Tf = unobtanium?steanne 3y agohttps://en.wikipedia.org/wiki/Triflate https://en.wikipedia.org/wiki/Triflate maybe?pg_bot 3y agohttps://en.wikipedia.org/wiki/Triflyl_group https://en.wikipedia.org/wiki/Triflyl_group