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  • Amide hydrolysis  (1)
  • Pentathionates  (1)
  • Sulfato ligands  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Syntheses of K[Co(tren)(NH3)(SO4)](S4O6)·2(H2O) and of [cis-α-Co(trien)(NH3)Cl](S5O6) - Compounds Produced by Hydrolytic Cleavage of Sulfur-Sulfur Bonds of the Tetrathionate Anion (1999)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 1999 (1999), S. 717-722 
    Details
    ISSN: 1434-1948
    Schlagwort(e): Tetrathionates ; Pentathionates ; Sulfato ligands ; Cobalt(III) complexes ; Thiobacillus ferrooxidans ; Chemistry ; General Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: K[Co(tren)(NH3)(SO4)](S4O6)·2(H2O) (1) and [cis-α-Co-(trien)(NH3)Cl](S5O6) (2) have been prepared unexpectedly while attempting to obtain crystals suitable for X-ray diffraction of [Co(tren)(NH3)Cl](S4O6) (3) and of [cis-Co(trien)(NH3)Cl](S4O6) (4), respectively. 1 is derived from 3 by hydrolysis of the tetrathionate anion resulting in a sulfato moiety which displaces the chloro ligand from the coordination sphere of the metal center. 2 is derived from 4 by hydrolysis of the tetrathionate anion followed by reformation into pentathionate anion and H2S, as described in previous chromatographic work by Steudel. Compounds 1 and 2 have been characterized by elemental analyses and by single-crystal X-ray diffraction studies.
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Crystal Structures of Oxalato and Oxamido Polyaminecobalt(III) Complexes Produced by Hydrolysis of Monooxamide (1999)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 1999 (1999), S. 723-728 
    Details
    ISSN: 1434-1948
    Schlagwort(e): Monooxamide ; Amide hydrolysis ; Cobalt(III) ; Chemistry ; General Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: The reactions of sodium monooxamide (H2NCOCO2Na) with trans-[Co(en)2Cl2]Cl, trans-[Co(3,2,3-tet)Cl2]Cl (3,2,3-tet = 1,5,8,12-tetraazadodecane), cis-α-[Co(trien)Cl2]Cl and [Co(tren)Cl2]Cl result in the formation of [Co(en)2(ox)]Cl · 4H2O (1), cis-β-[Co(3,2,3-tet)(ox)]Cl· 4 H2O (2), cis-α-[Co(trien)(ox)]Cl · 2 H2O (3), and [Co(tren)(ox)](ClO4) · 0.5 H2O (4) respectively, implying a hydrolytic cleavage of the amide bond. [Co(tren)(O,O′-oxam)]Cl2 · 2 H2O (5) (oxam = H2NCOCO2-) and p-[Co(tren)(NH3)(O-oxam)]Cl2 (6) have also been prepared in order to give mechanistic information for the hydrolysis of monooxamide. Crystal structures of the products are reported and possible pathways for the hydrolysis reactions are discussed.
    Zusätzliches Material: 5 Ill.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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