4

Hg      0.139111632210203     -0.121322153447540      0.053318332497989
Hg      1.459764862031335      1.209828387055659      0.271202989300737
Hg      1.341246945887101     -0.013660783079669      1.491938013707304
Hg      0.209776916499412      1.793250400424731      1.334923443389133