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Structural characterization of the trans -equatorial isomer of (aqua)(ethylenediamine- N , N , N ′-tripropionato)chromium(III) trihydrate,[Cr(edtrp)(H2O)] · 3H2O

Grubišic, Sonja ; Gruden-Pavlović, Maja ; Niketić, Svetozar ; Sakagami-Yoshida, Narumi ; Kaizaki, Sumio

In: Transition Metal Chemistry, 2003, vol. 28, no. 1, p. 37-42

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    Title
    • Structural characterization of the trans -equatorial isomer of (aqua)(ethylenediamine- N , N , N ′-tripropionato)chromium(III) trihydrate,[Cr(edtrp)(H2O)] · 3H2O
    Author
    • Grubišic, Sonja. Department of Chemistry, University of Belgrade, Studentski trg 16, POB 158, YU-11001, Belgrade, Yugoslavia
    • Gruden-Pavlović, Maja. Department of Chemistry, University of Belgrade, Studentski trg 16, POB 158, YU-11001, Belgrade, Yugoslavia
    • Niketić, Svetozar. Department of Chemistry, University of Fribourg, Perolles, CH-1700, Fribourg, Switzerland
    • Sakagami-Yoshida, Narumi. Department of Chemistry, Faculty of Science, Osaka University, Toyonaka, 560, Osaka, Japan
    • Kaizaki, Sumio. Department of Chemistry, Faculty of Science, Osaka University, Toyonaka, 560, Osaka, Japan
    Document Type
    • Postprint
    Language
    • English
    Published in
    • Transition Metal Chemistry, 2003, vol. 28, no. 1, p. 37-42. Kluwer Academic Publishers
    Other Version
    Classification
    • Engineering
    OAI-PMH Identifier
    • oai:doc.rero.ch:314117
    Summary
    The structure of trans-equatorial [Cr(edtrp)(H2O)] · 3H2O (edtrp3− is the anion of ethylenediamine-N,N,N′-tripropionic acid) was determined by single crystal X-ray diffraction. The chromium(III) ion is surrounded octahedrally by the two nitrogen and three oxygen atoms of the quinquedentate edtrp3−, forming a five-membered diamine ring and the three six-membered β-propionato chelate rings. The remaining coordination position is occupied by the H2O ligand. The crystal structure conformation is compared to the result of recent molecular mechanics analysis. The ring strain of R and G chelate rings was found to be in agreement with the previously proposed mechanisms for the C—N bond cleavage and recombination