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mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Structural and kinetic investigations of group VI and group VIII metal carbonyl derivatives containing trisodium tris-m-sulfonatophenyl phosphine ligands
  name:
    name part: Bischoff, Christopher John
    name part: 1964-
    role:
      role term: creator
  name:
    name part: Darensbourg, Donald J.
    role:
      role term: degree supervisor.
  name:
    name part: Anthony, R. G.
    role:
      role term: degree committee member.
  name:
    name part: Lunsford, J.
    role:
      role term: degree committee member.
  name:
    name part: Zingaro, R.
    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: 1991
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xviii, 154 leaves : illustrations ; 29 cm
  abstract: Several group 6 carbonyl derivatives containing the trisodium tris-m-sulfanatophenyl phosphine (TPPTS) ligand have been synthesized as part of a kinetic investigation into the possible intramolecular interactions of these ligands. Kinetic studies into the dissociation of both the water-soluble, TPPTS ligand and its organic-soluble analog, PPh3, from M(CO)5L (M = Mo, W) complexes have been followed by in situ internal reflectance infrared spectroscopy. Kinetic measurements taken in water, THF, and mixtures of THF:H2O show the loss of phosphine to follow a first-order dependence on the metal substrate and zero order dependence on the incoming ligand (CO). Activation parameters determined for both Mo(CO)5TPPTS and W(CO)5TPPTS in 1:1 THF:H2O are ΔH[double dagger]= 28.0[plus or minus]1.3 and ΔS[double dagger]= -4.80[plus or minus]3.33, ΔH[double dagger]= 31.1[plus or minus]1.4 and ΔS[double dagger]= -1.20[plus or minus]3.4 kcal mol^-1 and eu, respectively. These values are compared to their analogous Mo(CO)5PPh3 and W(CO)5PPh3 activation parameters, showing only slight differences. A series of kinetics for the loss of a phosphine from cis-Mo(CO)4L2 complexes were carried out in 2-methoxyethanol under an atmosphere of CO and at temperatures between 50 to 80 °C. The activation parameters for the reaction of carbon monoxide with cis-Mo(CO)4[TPPTS]2, cis-Mo(CO)4[PPh3]2, and [Na-Kryptofix-221]6[cis-Mo(CO)4{P(m-C6H4SO3)3}2] were determined to be ΔH[double dagger]= 28.9[plus or minus]2.2 and ΔS[double dagger]= 12.2[plus or minus]6.7, ΔH[double dagger]= 28.8[plus or minus]0.34 and ΔS[double dagger]= 12.5[plus or minus]1.0, and ΔH[double dagger]= 26.3[plus or minus]1.8 and ΔS[double dagger]= 8.7[plus or minus]5.5 kcal mol^-1 and eu, respectively. Results of this study indicate a slight interaction between neighboring TPPTS ligands. Under similar conditions cis-W(CO)4L2 (L = TPPTS and PPh3) complexes were found to undergo exclusively intramolecular rearrangements to the correspond…
  note: Typescript (photocopy).
  note: Vita.
  note: "Major subject: Chemistry."
  note: Ph. D. Texas A & M University 1991
  note: Includes bibliographical references.
  subject:
    topic: Organometallic compounds
    topic: Structure
  subject:
    topic: Organometallic compounds
    topic: Reactivity
  subject:
    topic: Ligands
  subject:
    topic: Catalysis
  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: 921020
    record change date: 20200904152542.0
    record identifier: in00001112349
    language of cataloging:
      language term: eng