@article {4232, title = {Conjugate Bronsted-Lewis superacids in fluorosulfuric acid - Hammett acidity function and electrical conductivity studies of Ta(V), Nb(V) and Sb(V) Lewis acids}, journal = {Journal of Fluorine Chemistry}, volume = {89}, number = {1}, year = {1998}, note = {ISI Document Delivery No.: ZJ736Times Cited: 0Cited Reference Count: 41}, month = {Apr}, pages = {117-123}, type = {Article}, abstract = {{Conjugate Bronsted-Lewis superacids in fluorosulfuric acid are studied by two techniques. Hammett acidity function studies on HSO3F-Ta(SO3F)(5) in the concentration range of 0-3.4 mol\% of Lewis acid are reported. The conjugate system HSO3F-Ta(SO3F)(5) shows in this range of Lewis acid concentration acidities equal or higher to those of HSO3F-3SO(3)-SbF5, which is commonly assumed to be the strongest conjugate protonic acid. Electrical conductivities of the neat Lewis acids of the type MFn(SO3F)(5-n)}, keywords = {BEHAVIOR, BIS(FLUOROSULFATE), Bronsted-Lewis, conjugate, CONVENIENT, FLUORIDE, GOLD(III) FLUOROSULFATE, H2SO4-HSO3F, ION, MOLECULAR-STRUCTURES, protonic acid, SYSTEMS, TETRAKIS(FLUOROSULFATO)AURATE(III)}, isbn = {0022-1139}, url = {://000073247800022}, author = {Cicha, W. V. and Zhang, D. L. and Aubke, F.} }