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:
    non sort: The
    title: formation and characterization of ionic transition metal carbonyl cluster fragments by ion-molecule reactions
  name:
    name part: Fredeen, Donnajean Anderson
    name part: 1959-
    role:
      role term: creator
  name:
    name part: Russell, David H.
    role:
      role term: degree supervisor.
  name:
    name part: Clearfield A.
    role:
      role term: degree committee member.
  name:
    name part: Gadalla, A. M.
    role:
      role term: degree committee member.
  name:
    name part: Schweikert, E. A.
    role:
      role term: degree committee member.
  name:
    name part: Texas A & M University
    role:
      role term: degree granting institution.
  type of resource: text
  genre: bibliography
  genre: Academic theses
  origin info:
    place:
      place term: xx
    date issued: 1986
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xv, 166 leaves : illustrations ; 29 cm
  abstract: The formation and characterization of ionic transition metal carbonyl cluster fragments by ion-molecle reactions is presented for the Cr(CO)6, Fe(CO)5, Co(CO)3(NO), and Ni(CO)4 systems as well as the heteronuclear co(CO)3(NO)/ Ni(CO)4, Co(CO)3(NO)/Fe(CO)5, and Ni(CO)4/Fe(CO)5 systems. The ionic cluster fragments formed in the Cr(CO)6, Fe(CO)5, Co(CO)3(NO), and Ni(CO)4 systems are characterized in terms of their coordination unsaturation. The definition of coordination unsaturation of the ionic cluster fragments progresses from the metal-to-ligand ratio to the electron deficiency model. A general relationship emerges between reactivity and electron deficiency. Insight into the bond order and Lewis acidity /basicity of the ionic cluster fragments can also be obtained from the electron deficiency model. A detailed analysis of these systems reveals that the sequence leading to cluster formation can be explained using the CVMO model developed by Lauher. The ion-molecule chemistry of the heteronuclear ionic cluster fragments of the Co(CO)3(NO)/Ni(CO)4, Ni(CO)4/ Fe(CO)5, and Co(CO)3(NO)/Fe(CO)5 systems are examined to further probe the relationship between the CVMO model and the sequence of reaction of relationship between the CVMO model and the sequence of reaction of the ionic cluster fragments. The ionic cluster fragments formed in the heteronuclear systems containing Fe(CO)5 appear to follow the bonding patterns found in the heterometallic systems containing Fe(CO)4^-2. The relationship between reactivity and coordination unsaturation is further tested by ligand exchange studies with molecular oxygen. Ionic cluster fragments which are coordinatively unsaturated readily react with O2 by displacement of carbonyl ligands. The coordinatively saturated ionic cluster fragments having high bond orders are unreactive toward O2.
  note: Typescript (photocopy).
  note: Vita.
  note: "Major subject: Chemistry."
  note: Ph. D. Texas A & M University 1986
  note: Includes bibliographical references (leaves 160-165).
  subject:
    topic: Transition metal compounds
  subject:
    topic: Organometallic compounds
  subject:
    topic: Metal-metal bonds
  subject:
    topic: Major chemistry
  identifier: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  record info:
    record content source: TXA
    record creation date: 880421
    record change date: 20200904152401.0
    record identifier: in00000011099
    language of cataloging:
      language term: eng