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Acta Cryst. (2008). E64, m140-m141 [ doi:10.1107/S1600536807064483 ]
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3-naphthalene-2,6-dicarboxylato)(2-naphthalene-2,6-dicarboxylato)diholmium(III)]Abstract: The crystal structure of the title compound, [Ho2(C12H6O4)3(H2O)6]n, contains binuclear centrosymmetric {Ho2O2(CO2)4(H2O)6} cores interconnected via the naphthalene-2,6-dicarboxylate (NDC2-) bridging ligands into a two-dimensional neutral plane net, ![[infinity]](/logos/entities/infin_rmgif.gif)
2[Ho2(NDC)3(H2O)6], exhibiting a typical (4,4)-topology. Interactions between adjacent layers are assured by a series of C-H
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contacts and a number of strong and highly directional O-HO hydrogen bonds involving the coordinated water molecules and neighbouring coordinated carboxylate groups. One NDC2- bridging ligand has its centroid located at a crystallographic centre of inversion.
Online 12 December 2007
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