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Book Title: DTIC ADA1024839: Variable Temperature Tin 119m Moessbauer
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Book Category: ATOMS
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Language: english
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Post Date: 2025-04-15 18:17:16
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PDF Size: 0.52 MB
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Book Pages: 17
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DTIC ADA1024839: Variable Temperature Tin 119m Moessbauer
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Description of the Book:
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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