Copper(II) chloride/1-methylbenzotriazole chemistry: influence of various synthetic parameters on the product identity, structural and magnetic characterization, and quantum-chemical studies
Φόρτωση...
Ημερομηνία
Συγγραφείς
Skorda, K.
Stamatatos, T. C.
Vafiadis, A. P.
Lithoxoidu, A. T.
Terzis, A.
Perlepes, S. P.
Mrozinski, J.
Raptopoulou, C. P.
Plakatouras, J. C.
Bakalbassis, E. G.
Τίτλος Εφημερίδας
Περιοδικό ISSN
Τίτλος τόμου
Εκδότης
Elsevier
Περίληψη
Τύπος
Είδος δημοσίευσης σε συνέδριο
Είδος περιοδικού
peer reviewed
Είδος εκπαιδευτικού υλικού
Όνομα συνεδρίου
Όνομα περιοδικού
Inorganica Chimica Acta
Όνομα βιβλίου
Σειρά βιβλίου
Έκδοση βιβλίου
Συμπληρωματικός/δευτερεύων τίτλος
Περιγραφή
A systematic investigation of the CuCl2/Mebta (Mebta = 1-methylbenzotriazole) reaction system is described, involving the determination of the influence of the Cu-II:Mebta ratio, the nature of solvent and the presence of counterions on the identity of the reaction products. As a consequence, complexes [Cu2Cl4(Mebta)(4)] (1), [CuCl2(Mebta)(2)] (2), {[Cu2Cl4(Mebta)(2)]}(n) (3), [Cu4OCl6(Mebta)(4)] . 0.25H(2)O (4 . 0.25H(2)O) and [Cu2Cl2(Mebta)(6)](ClO4)(2) (5) have been isolated and structurally characterized by single-crystal X-ray studies. Mebta behaves as a monodentate ligand binding through N(3). I is a dinuclear complex, the structure of 2 consists of discrete monomeric units, and that of 3 is composed of linear, well-separated polymeric chains of Cu-II atoms. The molecules of 4 . 0.25H(2)O have a central mu(4)-oxide ion surrounded tetrahedrally by four Cu-II atoms. In the cations of 5 the two Cu-II centres are asymmetrically bridged by two chloro ligands, with three Mebta molecules completing five coordination at each metal. Complexes were characterized by spectroscopic (IR, far-IR, solution UV/Vis) and thermal decomposition (TG, DTG, and DTA) techniques. Variable-temperature magnetic susceptibility data for 1, 3 and 5 showed intramolecular (1, 5) and intrachain (3) ferromagnetic exchange interactions. Estimates of the J parameters, experimentally derived, were in close agreement with a new magneto-structural criterion developed by us, holding for bis(mu-chloro) copper(II) dimers. A comparison between the CuCl2/Mebta and CuBr2/Mebta systems is also presented. (C) 2004 Elsevier B.V. All rights reserved.
Περιγραφή
Λέξεις-κλειδιά
bis(mu-chloro) copper(ii) dimers, ehmo calculations, ferromagnetic exchange interactions, mu(4)-oxo)hexakis(mu-chloro)tetracopper(ii) core, 1-methylbenzo triazole copper(ii) complexes, one-dimensional copper(ii) coordination polymers, crystal-structure, molecular-structure, corrosion-inhibitors, magnetostructural correlations, coordination-compounds, dichloride dihydrate, reaction ratio, linear chain, complexes, benzotriazole
Θεματική κατηγορία
Παραπομπή
Σύνδεσμος
<Go to ISI>://000226259600014
http://ac.els-cdn.com/S0020169304005262/1-s2.0-S0020169304005262-main.pdf?_tid=b97cc6b7ee17c479e233c1e81d182a33&acdnat=1333036004_ee9419051c5923833dcf8d5b916e27fc
http://ac.els-cdn.com/S0020169304005262/1-s2.0-S0020169304005262-main.pdf?_tid=b97cc6b7ee17c479e233c1e81d182a33&acdnat=1333036004_ee9419051c5923833dcf8d5b916e27fc
Γλώσσα
en
Εκδίδον τμήμα/τομέας
Όνομα επιβλέποντος
Εξεταστική επιτροπή
Γενική Περιγραφή / Σχόλια
Ίδρυμα και Σχολή/Τμήμα του υποβάλλοντος
Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας