Poly[hexa-aqua-bis(?(3)-naphthalene-2,6-dicarboxyl-ato)(?(2)-naphthalene-2,6-dicarboxyl-ato)diholmium(III)].

ABSTRACT: The crystal structure of the title compound, [Ho(2)(C(12)H(6)O(4))(3)(H(2)O)(6)](n), contains binuclear centrosymmetric {Ho(2)O(2)(CO(2))(4)(H(2)O)(6)} cores inter-connected via the naphthalene-2,6-dicarboxyl-ate (NDC(2-)) bridging ligands into a two-dimensional neutral plane net, ?(2)[Ho(2)(NDC)(3)(H(2)O)(6)], exhibiting a typical (4,4)-topology. Inter-actions between adjacent layers are assured by a series of C-H?? contacts and a number of strong and highly directional O-H?O hydrogen bonds involving the coordinated water mol-ecules and neighbouring coordinated carboxyl-ate groups. One NDC(2-) bridging ligand has its centroid located at a crystallographic centre of inversion.

SUBMITTER: Almeida Paz FA 

PROVIDER: S-EPMC2915085 | biostudies-other | 2007

REPOSITORIES: biostudies-other