title: Monomers, dimers, and trimers of [Au(CN)(2)] in a Ba(diaza-18-crown-6) coordination polymer.
abstract: The structure of the title compound, poly[triaquatetra-μ-cyanido-tetracyanidobis-(1,4,10,13-tetra-oxa-7,16-diaza-cyclo-octa-deca-ne)di-barium(II)tetra-gold(I)], [Au(4)Ba(2)(CN)(8)(C(12)H(26)N(2)O(4))(2)(H(2)O)(3)](n), displays O-H⋯N hydrogen bonding between water molecules and cyano ligands and an unusual pattern of aurophilic inter-actions that yields a monomer, dimer, and trimer of [Au(CN)(2)](-) within the same crystal structure. In two of the five Au positions, the atom resides on a center of inversion. The overall arrangement is that of a coordination polymer assisted by aurophilic and hydrogen-bonded inter-actions.
authors.affiliation: Department of Chemistry, University of California, Davis, CA 95656, USA.
authors.forename: Christine M
authors.initials: CM
authors.lastname: Beavers
authors.forename: Latisha
authors.initials: L
authors.lastname: Paw U
authors.forename: Marilyn M
authors.initials: MM
authors.lastname: Olmstead