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The crystal and molecular structure of bis(diethylcarbamoyl)mercury

1975; De Gruyter; Volume: 142; Issue: 1-2 Linguagem: Inglês

10.1524/zkri.1975.142.1-2.35

2196-7105

K. Toman, G. Hess,

Chemical Thermodynamics and Molecular Structure

Abstract The crystal structure of bis(diethylcarbamoyl)mercury, [(C 2 H 5 ) 2 NCO] 2 Hg, has been determined by x-ray diffraction. Due to twinning of the crystals, the analysis had to be based on reflections having h + k even, and packing considerations. The crystals are monoclinic, with cell dimensions a = 15.014(8) Å, b = 11.930(9) Å, c = 4.082(2) Å, β = 115.13(3)°. The space group is either P 2 1 / a , P 2 1 or Pa , with two molecules per unit cell. The C–Hg bond length is 2.13(2) Å. No intermolceular coordination to the Hg atom is observed; the intermolecular distances are Hg…N, 3.67(3) Å, and Hg…O, 3.40(3) Å.