Spectroscopic Observation of the Formyl Cation in a Condensed Phase |
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| Authors: | de Rege PJF JA Gladysz IT Horvath |
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| Institution: | P. J. F. de Rege and I. T. Horvath, Corporate Research Laboratories, Exxon Research and Engineering Company, Annandale, NJ 08801, USA. J. A. Gladysz, Department of Chemistry, University of Utah, Salt Lake City, UT 84112, USA. |
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| Abstract: | The formyl cation, HCO+, has long been believed to be an important intermediate in the chemistry of carbon monoxide (CO) in acidic environments, but its spectroscopic observation in solution has been elusive. This species was generated by the reaction of CO with the liquid superacid hydrofluoric acid-antimony pentafluoride (HF-SbF5) under pressure and was observed by nuclear magnetic resonance and infrared spectroscopy. Equilibria between CO in the gas phase, CO dissolved in HF-SbF5, the SbF5 adduct of formyl fluoride, and HCO+ associated with several equilibrating anions of the type SbxF5x+1]- are proposed to describe the system. |
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