rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Cyanide bridged molecular magnetic materials with anisotropic transition metal ions
    sub title: investigation of bistable magnetic phenomena
  name:
    name part: Avendano, Carolina.
    role:
      role term: creator
  name:
    name part: Dunbar, Kim R.
    role:
      role term: thesis advisor.
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: txu
    date issued: 2011
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: remote
    extent: 1 online resource.
  abstract: The work presented herein focuses on the synthesis and characterization of new cyanide bridged molecular magnetic materials that form discrete molecules as well as three dimensional networks. This research is inspired by the recognition that the Prussian blue (PB) family exhibits a wide range of interesting magnetic properties such as photomagnetism, spin crossover, and high TC magnets owing to the presence of the cyanide bridge that promotes magnetic communication between adjacent metal spins. An underexplored facet of this research is the systematic development of the topic with anisotropic metal ions research that was undertaken as part of this dissertation. The resulting discoveries are materials that exhibit a wide range of bistable magnetic properties, including photomagnetism, long range magnetic ordering, SMM, and exchange-biased SMM behavior. New Prussian Blue analogs are presented in Chapter II of this thesis that are based on the nearly unexplored hexacyanoosmate(III) ion. A family of CoII PB derivatives of OsIII were found to exhibit photomagnetic and charge transfer induced spin transition (CTIST) behavior and a study of alkali metal cation dependence revealed marked differences in both the photomagnetic and CTIST properties, with the highest ordering temperature being observed for the K+ analog which exhibits a TC of 28.5 K. The phenomenon of linkage isomerism reported for PB analogs and other molecular materials that incorporate the [Cr(CN)6]3- ion wherein the CN ligand reverses its binding mode between the two metal centers was studied in detail as described in Chapter III. Small molecule models that incorporate [Cr(CN)6]3- and CoII ions were investigated by single crystal X-ray crystallography, magnetism, and solution IR studies and the data led to useful mechanistic information about the nature of the cyanide reversal process. The use of the anisotropic hexacyanoosmate(III) anion to form a trinuclear species with MnIII was undertaken in the study d…
  note: by Carolina Avendano.
  note: "Major Subject: Chemistry"
  note: Title from author supplied metadata (automated record created 2011-08-09 15:09:44).
  note: Electronic resource.
  note: Doctor of Philosophy Texas A&M University 2010 http://hdl.handle.net/1969.1/ETD-TAMU-2010-05-7858
  note: Includes bibliographical references.
  note: Text (Dissertation)
  subject:
    topic: Major chemistry
  subject:
    topic: TCNQ
  subject:
    topic: cyanide
  subject:
    topic: single molecule magnets
  subject:
    topic: molecular magnetism
  subject:
    topic: photomagnetism
  identifier: http://hdl.handle.net/1969.1/ETD-TAMU-2010-05-7858
  record info:
    record content source: TXA
    record creation date: 110817
    record change date: 20151202142301.0
    record identifier: in00002707336