DTIC ADA1024839: Variable Temperature Tin 119m Moessbauer pdf

DTIC ADA1024839: Variable Temperature Tin 119m Moessbauer_bookcover

DTIC ADA1024839: Variable Temperature Tin 119m Moessbauer

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The question of intermolecular association in the chlorodimethyltin (IV) derivatives of L-cysteine (a monohydrate) and DL-penicillamine is settled by variable-temperature tin-119m Mossbauer data between 77 and 140 or 150k, respectively. The slopes of the natural logs of the areas under the resonance are -1.58 + or – 0.1/100/K and -1.46 + or – 0.1/100/K, respectively, considerably lower than those for monomeric lattices. These data rule out an extended association through bridging amino nitrogen atoms or carboxyate oxygen atoms, and suggest a lattice in which small molecular or oligomeric units are associated by an extensive network of hydrogen bonds. An alternative ionic structure of Cl(CH3)2SnSCR2CH(NH3(+))C00- units where R = H can be ruled out on the basis of infrared data (nu(OH)=3450/cm

  • Creator/s: Defense Technical Information Center
  • Date: 6/15/1981
  • Year: 1981
  • Book Topics/Themes: DTIC Archive, Molloy, K C, OKLAHOMA UNIV NORMAN DEPT OF CHEMISTRY, *ORGANOMETALLIC COMPOUNDS, *TIN COMPOUNDS, *CYSTEINE, METHYL RADICALS, SYNTHESIS(CHEMISTRY), ATOMS, MOSSBAUER EFFECT, NITROGEN, OXYGEN, CHEMICAL BONDS, MOLECULAR STRUCTURE, AMINO ACIDS, CHLORINE COMPOUNDS

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