A structural model for the copper(II) site of Cu-Zn superoxide dismutase: preparation, crystal structure and properties of [Cu(Mebta)(4)(H2O)](ClO4)(2)center dot 0.4 EtOH (Mebta=1-methylbenzotriazole) (Journal article)

Skorda, K./ Perlepes, S. P./ Raptopoulou, C. P./ Keuleers, R./ Terzis, A./ Plakatouras, J. C.


Reaction of Cu(ClO4)(2). 6H(2)O with 1-methylbenzotriazole (Mebta) in EtOH yields [Cu(Mebta)(4)(H2O)] (ClO4)(2). 0.4EtOH in ca. 75% yield. The structure of this salt has been determined by single-crystal X-ray crystallography. Mebta behaves as a monodentate ligand binding through N(3). The metal coordination geometry is best described as distorted square pyramidal with the H2O ligand occupying the apical site. The complex was also characterized by molar conductivity, room-temperature effective magnetic moment and spectroscopic (i.r., far-i.r., u.v./vis, e.s.r.) studies. The data are discussed in terms of the nature of bonding and known structure. Comparison between the structural and spectroscopic properties of [Cu(Mebta)(4)(H2O)](ClO4)(2). 0.4EtOH and those of the (CuI)-I-I site of Cu-Zn superoxide dismutase shows that the former can be considered as a fairly good model for the latter.
Institution and School/Department of submitter: Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας
Keywords: di-schiff-base,coordination-compounds,cu2zn2sod model,free-radicals,complexes,chemistry,benzotriazole,ligand,oxygen,spectroscopy
URI: http://olympias.lib.uoi.gr/jspui/handle/123456789/8133
ISSN: 0340-4285
Link: <Go to ISI>://000082822700008
http://www.springerlink.com/content/p6061809451p1701/fulltext.pdf
Publisher: Kluwer Academic Publishers
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

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