Crystal structure determination of complexes of monomethylammonium chloride and mercury(II) chloride: CH3NH3HgCl3, (CH3NH3)2HgCl4, and CH3NH3Hg2Cl5 |
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Authors: | A Ben Salah J W Bats R Kalus H Fuess A Daoud |
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Abstract: | The crystal structures have been determined of CH3NH3HgCl3, (CH3NH3)2HgCl4, and CH3NH3Hg2Cl5. In (CH3NH3)2HgCl4 the HgII atom is tetrahedrally coordinated by four Cl atoms with Hg? Cl bond lengths of 2.464 to 2.478 Å. In the other two compounds the HgII atom is involved in two short covalent Hg? Cl bonds, forming a pseudo HgCl2 molecule and two much longer bridging Hg? Cl bonds. The methylammonium groups are connected by hydrogen bonds to the chlorine atoms. The nature of the hydrogen bonding scheme probably causes disorder of the methylammonium groups. |
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