Ron's research interests included, as well as structure and bonding, superacids (and, related, aprotic media of very low Lewis Basicity) and the cations that could be formed in them, fluorine ...
People went nuts about it! Those acids were called 'superacids'. A further leap in acidity came in the 1970s, when additional antimonypentafluoride was added to the 'superacid'. These acids are ...