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4We present a novel nuclear magnetic resonance experiment for establishing through-bond connectivity in solids using scalar coupling-driven correlation. This method, a variant of the popular double-quantum-filtered correlation spectroscopy experiment in liquids, is robust under fast magic-angle-spinning conditions and in the presence of dynamics. In HC60+, where anisotropic molecular motion renders through-space dipolar-driven correlation ineffective, this through-bond correlation method answers …Read more
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4When partnered with carborane anions, arenium ions are remarkably stable. Previously investigated only at subambient temperatures in highly superacidic media, protonated benzene is readily isolated as a crystalline salt, thermally stable to > 150 °C. Salts of the type [H][carborane] have been prepared by protonating benzene, toluene, m-xylene, mesitylene, and hexamethylbenzene with the carborane superacid H. They have been characterized by elemental analysis, X-ray crystallography, NMR and IR me…Read more
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