Poly[[aqua(mu(7)-ethylenediaminetetraacetato)dicadmium(II)] monohydrate].

The title compound, {[Cd(2)(C(10)H(12)N(2)O(8))(H(2)O)].H(2)O}(n), consists of two crystallographically independent Cd(II) cations, one ethylenediaminetetraacetate (edta) tetraanion, one coordinated water molecule and one solvent water molecule. The coordination of one of the Cd atoms, Cd1, is composed of five O atoms and two N atoms from two tetraanionic edta ligands in a distorted pentagonal-bipyramidal coordination geometry.

Novel noncentrosymmetric zinc coordination polymer containing an unusual zinc carboxylate-sulfonate substructure with a (10,3)-d topology and its second-harmonic-generation properties.

A novel 3D coordination polymer, Zn(2)(μ(2)-OH)(SIP)(DPP) (1), with mixed ligands of 5-sulfoisophthalate (SIP) and 1,3-di-4-pyridylpropane (DPP), has been hydrothermally synthesized and characterized. 1 contains an unusual 3D subnet with distorted (10,3)-d topology and left/right-handed helical channels. Second-harmonic-generation (SHG) measurements revealed that the material has a strong SHG response (∼2.