Acta Cryst. (2005). E61, m885-m888 [ doi:10.1107/S1600536805010858 ]
Abstract: Cucurbituril crystallizes with bis(-oxo-2O:O)bis[aquaoxodichloromolybdenum(VI)] as the 10.5-hydrate, with the formula [Mo2O4Cl4(H2O)2]·(C36H36N24O12)·10.5H2O. The molybdenum-bearing component interacts indirectly with two cryptands through the two coordinated water molecules, each outer-sphere-coordination cryptand forming only one hydrogen bond with each water molecule. The asymmetric unit has two cryptands, both of which lie on special positions of site symmetry. One of them encapsulates a water molecule that is disordered over two general positions, whereas the other encapsulates one that lies on a centre of inversion. The solvent water molecules interact with the dinuclear complex and with both cucurbituril molecules to form a three-dimensional network structure.
Online 16 April 2005
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