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: Syntheses, structures, and spectra of dinuclear, metal-metal bonded compounds of diplatinum(III) and dirhodium(II)
  name:
    name part: Han, Scott
    name part: 1958-
    role:
      role term: creator
  name:
    name part: Cotton, F. A.
    role:
      role term: degree supervisor.
  name:
    name part: Martell, A. E.
    role:
      role term: degree committee member.
  name:
    name part: Parker, Donald L.
    role:
      role term: degree committee member.
  name:
    name part: Scmitt, R. P.
    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: 1984
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xiii, 152 leaves : illustrations ; 29 cm
  abstract: Metal atom dimers containing the (sigma)('2)(pi)('4)(delta)('2)(delta)*('2)(pi)*('4 )configuration (d('7)-d('7)) have a net single bond between them and this bonding is exemplified in the real systems Rh(,2)('4+), Ir(,2)('4+), Pd(,2)('6+) and Pt(,2)('6+). Only for the first and last cases, however, have there been reported examples. In contrast to the many compounds known for Rh(,2)('4+), the results for Pt(,2)('6+) are meager. The syntheses of eight compounds of Pt(,2)('6+) are reported. These compounds are tetra-sulfato and phosphato bridged complexes of dinuclear platinum(III). Of the eight compounds, X-ray crystallographic studies have been made on six. The crystal structures show that five of the six compounds have the shortest known platinum-platinum bonds reported to date. Reactivity studies of these systems with heterocyclic tertiary amines, nucleophiles, and salts to determine the stability of these systems have been carried out. The dirhodium(II) field is relatively more developed. The molecules synthesized today are for specific purposes to aid in the understanding of particular ambiguous fields in the chemistry. One such field is the assignment of the two main transitions in the visible region of the electronic spectrum of dirhodium(II) tetracarboxylates. The assignments for these two transitions has a controversial history. Evidence is presented here which supports recent assignments of the two bands by H. B. Gray and co-workers. This new evidence is from a technique relatively new to metal dimer chemistry, circular dichroism. Circular dichroism gives more information concerning the electronic nature of these systems and consequently aids in band assignments. Two chiral compounds of the dirhodium(II) tetracarboxylato class of complexes have been synthesized and structurally characterized to determine their absolute configuration. These molecules belong in the class II group of chiral compounds which is defined as the symmetric chromophore in a chiral mo…
  note: "Major subject: Chemistry."
  note: Typescript (photocopy).
  note: Vita.
  note: Ph. D. in Philosophy Texas A & M University
  note: Includes bibliographical references (leaves 146-151).
  subject:
    topic: Platinum group
  subject:
    topic: Chemistry
  subject:
    topic: Platinum group
  identifier: http://proxy.library.tamu.edu/login
  identifier: https://hdl.handle.net/1969.1/DISSERTATIONS-434302
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: https://hdl.handle.net/1969.1/DISSERTATIONS-434302
  record info:
    record content source: TXA
    record creation date: 861113
    record change date: 20220103135014.0
    record identifier: in00000413534
    language of cataloging:
      language term: eng