Robuta

https://www.nist.gov/publications/carbon-lone-pair-electron-donor-ionic-hydrogen-bonds-isocyanides
lone pairelectron donorionic hydrogencarbonbonds
https://pubmed.ncbi.nlm.nih.gov/12094024/
The structure of trithallium hydrogen bis(sulfate), Tl(3)H(SO(4))(2), in the super-ionic phase has been analyzed by Rietveld analysis of the X-ray powder...
hydrogenbissulfatetl