title: Structure and magnetic ordering of KxH1-xNi(OH2)4[Ru2(CO3)4].zH2O.
abstract: K(x)H(1-x)Ni(OH2)4[Ru2(CO3)4].zH2O is a ferrimagnet (Tc = 4.3 K) formed from the reaction of K3[Ru(II/III)2(CO3)4] and Ni(II) in water. It possesses a new 3-D network structural motif composed of linked chains and mu3-CO3 linkages to both Ru and Ni sites. Each Ni(II) bonds to four oxygens and to two [Ru2(CO3)4]3- moieties in a cis manner, and four mu3-CO3 groups from each [Ru2(CO3)4](3-) have two oxygens bonding to the Ru2 moiety, forming the typical paddle-wheel core, and trans pairs of the third CO32- oxygen axially bonded to either another Ru2 or Ni(II).
authors.affiliation: Department of Chemistry, University of Utah, 315 S. 1400 E., Salt Lake City, UT 84112, USA.
authors.forename: Bretni S
authors.initials: BS
authors.lastname: Kennon
authors.forename: Jae-Hyuk
authors.initials: JH
authors.lastname: Her
authors.forename: Peter W
authors.initials: PW
authors.lastname: Stephens
authors.forename: William W
authors.initials: WW
authors.lastname: Shum
authors.forename: Joel S
authors.initials: JS
authors.lastname: Miller