0000000000214806
AUTHOR
Tiffany J. Greenfield
Ferromagnetic Coupling in “Double-Bridged” Dihydrogenpyrophosphate Complexes of Cobalt(II) and Nickel(II)
Three isostructural compounds of the formula {[M(bipy)(H2O)(H2P2O7)]2·2H2O} [bipy = 2,2'-bipyridine; M = Ni (1), Co (2), Mn (3)] have been isolated from aqueous solutions containing the corresponding metal(II) chloride hydrate with a bipy and sodium pyrophosphate solution in a 1:1:2 molar ratio, and their structures were determined by single-crystal X-ray diffraction. The structures of 1-3 consist of neutral aqua(2,2'-bipyridine)metal(II) dinuclear units bridged by two dihydrogenpyrophosphate groups adopting a bidentate/monodentate mode. Each metal ion in 1-3 is six-coordinate in a distorted octahedral geometry, with the reduced value of the angle subtended by the chelating bipy at the meta…
A methylenediphosphonate bridged copper(II) tetramer: Synthesis, structural, thermal, and magnetic characterization of [Cu4(H2O)2(phen)4(μ-P2O6CH2)2]·21H2O
Abstract A novel tetracopper(II) complex namely, [Cu4(H2O)2(phen)4(μ-P2O6CH2)2]·21H2O (1) was synthesized by using copper(II) chloride, 1,10-phenanthroline (phen), and methylene diphosphonic acid (MDP). The structure of 1 was characterized by single crystal X-ray diffraction and spectroscopy. Compound 1 crystallizes in the triclinic system, P 1 ¯ space group and its crystal structure consists of neutral centrosymmetric tetranuclear copper(II)-methylene diphosphonate units where each peripheral {Cu(phen)(P2O6CH2)}2− fragment adopts the bidentate(Oeq-P-Oeq)/monodentate (Oax) bridging mode towards each of the two inner {Cu(phen)}2+ entities resulting in a “clamshell”-like orientation. The two …
Exploring the biological, catalytic, and magnetic properties of transition metal coordination complexes incorporating pyrophosphate
Abstract Polyphosphate anions are ubiquitous in nature, none more so than the diphosphate tetra-anion P2O74−, commonly referred to as pyrophosphate (PPi). The past decade has seen a rise in the number of pyrophosphate coordination complexes synthesized and characterized, and the areas of research interest expanded to include magnetic, medicinal, nutraceutical, catalytic and bioinorganic. The aim of the present review is to collect and organize the multidisciplinary information of the inorganic pyrophosphate system paying special attention to the following points: (i) the structural diversity of the PPi-containing metal complexes from discrete species to coordination polymers, which is due t…
CCDC 1046978: Experimental Crystal Structure Determination
Related Article: Tiffany J. Greenfield , Amanda E. Hoffman , Nadia Marino , Alan G. Goos , Francesc Lloret , Miguel Julve , and Robert P. Doyle|2015|Inorg.Chem.|54|6537|doi:10.1021/acs.inorgchem.5b00866
CCDC 1046977: Experimental Crystal Structure Determination
Related Article: Tiffany J. Greenfield , Amanda E. Hoffman , Nadia Marino , Alan G. Goos , Francesc Lloret , Miguel Julve , and Robert P. Doyle|2015|Inorg.Chem.|54|6537|doi:10.1021/acs.inorgchem.5b00866
CCDC 1046979: Experimental Crystal Structure Determination
Related Article: Tiffany J. Greenfield , Amanda E. Hoffman , Nadia Marino , Alan G. Goos , Francesc Lloret , Miguel Julve , and Robert P. Doyle|2015|Inorg.Chem.|54|6537|doi:10.1021/acs.inorgchem.5b00866
CCDC 1892797: Experimental Crystal Structure Determination
Related Article: Tiffany J. Greenfield, Tamra Takemoto, Joan Cano, Francesc Lloret, Miguel Julve, Jon Zubieta, Robert P. Doyle|2019|Polyhedron|169|162|doi:10.1016/j.poly.2019.05.022