A Mercurial Route to a Cobalt Dihydrogen Complex


  • R.M.B. gratefully acknowledges funding from the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Biosciences and Geosciences. Pacific Northwest National Laboratory is operated by Battelle for the U.S. Department of Energy.


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Mercury for protection? Mercury protects the highly reactive 14-electron {Co(POCOP)} fragment in a Co–Hg–Co complex, but reaction with H2 gives a rare dihydrogen complex of cobalt, and a second H2 molecule is added at higher pressures and low temperature (see scheme).