Crystal structure of di-μ-aqua-μ-(pyrazine N,N'-dioxide)-κ(2) O:O-bis-(di-aqua-sodium) tetra-phenyl-borate dihydrate pyrazine N,N'-dioxide monosolvate.

ABSTRACT: The search for novel lanthanide coordination networks using pyrazine N,N'-dioxide (pzdo, C4H4N2O2) as a structure-directing unit, led to the synthesis and the structure determination of the title compound, [Na2(C4H4N2O2)(H2O)6][B(C6H5)4]2·C4H4N2O2·2H2O. The crystal structure is comprised of discrete [{Na(H2O)2}2(μ-H2O)2(μ-pzdo)](2+) cations and tetra-phenyl-borate anions, as well as pzdo and H2O solvent mol-ecules. The dinuclear cation is located about a twofold rotation axis, and the symmetry-related Na(I) atoms display a distorted square-pyramidal coordination sphere defined by two O atoms of terminal water ligands, two O atoms of bridging water ligands and one O atom of a bridging pzdo ligand. In the crystal, O-H⋯O hydrogen bonds link the dinuclear cation and solvent pzdo mol-ecules (po

SUBMITTER: Boron EP 

PROVIDER: S-EPMC4719815 | biostudies-literature | 2015 Dec

REPOSITORIES: biostudies-literature