NMR, X-Ray Crystal Structure Studies and Mechanism for Formation of a Novel Di-gallium Complex and 5-Methoxy-4,5,6-triphenyl-4,5-dihydro-1,2,4-triazene-3(2H)-thione
| Autor: | Gregory K. Pierens, David C. Reutens, Taracad K. Venkatachalam, Paul V. Bernhardt |
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| Rok vydání: | 2018 |
| Předmět: |
Gallium nitrate
X-ray chemistry.chemical_element General Chemistry Nuclear magnetic resonance spectroscopy Crystal structure 010402 general chemistry 010403 inorganic & nuclear chemistry Condensed Matter Physics 01 natural sciences 0104 chemical sciences Crystallography chemistry.chemical_compound chemistry Triazene Compound medicine Triazene Gallium Organometallic chemistry medicine.drug |
| Zdroj: | Journal of Chemical Crystallography. 49:131-138 |
| ISSN: | 1572-8854 1074-1542 |
| Popis: | Gallium complexes of bis-thiosemicarbazones were prepared and characterized using NMR and X-ray crystallography. Formation of a gallium nitrate complex was proven by NMR spectroscopy. Surprisingly, this complex was found to convert on standing to a new hydroxido-bridged di-gallium complex. The X-ray crystal structure of the digallium complex is described. Similarly, a triazene compound was formed during the preparation of the gallium complex comprising a tetraphenyl unit in the bis-thiosemicarbazone structure. We propose a mechanism for the formation of both the di-gallium species as well as triazene compound in solution. The lattice parameters for the digallium complex is as follows: a: 17.6854(13) A, b:16.6492(7) A, c: 21.4659(14) A, β = 112.383(8)°. |
| Databáze: | OpenAIRE |
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