We calculate the Schiff moment of the nucleus 199Hg, created by πNN vertices that are odd under parity (P) and time-reversal (T). Our approach, formulated in diagrammatic perturbation theory with important core-polarization diagrams summed to all orders, gives a close approximation to the expectation value of the Schiff operator in the odd-A Hartree-Fock-Bogoliubov ground state generated by a S...

We report on work directed toward the systematic evaluation of an optical frequency standard based on the S1/2–D5/2 transition of a single, laser-cooled, trapped 199Hg+ ion, whose resonance frequency is 1.06 × 1015 Hz. For the purpose of the evaluation, two 199Hg+ standards have been constructed. In the cooling-laser system built for the second standard, an injection-locking scheme has been app...

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The reaction of phenylmercuric chloride with an anionic dimanganese borylene (Li(+)[Cp2(CO)4Mn2B](-)) led to the formation of a trimetalloboride featuring the first reported bond between mercury and a non-cluster boron atom. Examination by (199)Hg NMR indicated (11)B-(199)Hg scalar coupling. Theoretical calculations indicated the nature of bonding to be σ-donation from a B-Mn π-orbital to Hg, i...