WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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Subject: search.filters.subject.Imido complexes

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  • Article
    Citation - WoS: 5
    Citation - Scopus: 6
    Oxo-Bridged (haloarylimido)[tris(3,5-Dimethylpyrazolyl)borato] Molybdenum(v) Complexes: Crystal Structures of Geometric Isomers of [motp*(o)cl](µ-O)[motp*(cl)(?nc6h 4br)]
    (De Gruyter, 2005) Sözüer, Hikmet Işıl; Dülger İrdem, Seçkiner; Jeffery, John J.; Hamidov, Hayrullah; Şentürk, Ozan Sanlı
    The reaction between [MoTp*(O)Cl2], [Tp* = hydrotris(3,5-dimetylpyrazol-1-yl)borate] and 4-bromoaniline in refluxing toluene gave geometric isomers of [MoTp*(O)Cl](μ-O)[MoTp*(Cl) (≡NC6H4Br)] (1a, cis; 1b, trans), but a similar reaction between [MoTp*(O)Cl2] and 4-chloroaniline yielded only one product, [MoTp*(O)Cl](μ-O)[MoTp*(Cl)(≡NC 6H4Cl)] (2) as a red crystalline solid. The new compounds were characterized by microanalytical data, mass, IR and 1H NMR spectroscopy. The X-ray structure analysis of 1a and 1b revealed that the complexes are geometric isomers, the two chloro ligands being cis in 1a and trans in 1b. Both compounds have Mo-O-Mo linkages and nearly linear arylimido moieties.
  • Article
    Citation - WoS: 5
    Citation - Scopus: 8
    Synthesis, Characterization and Electrochemical Behavior of Oxo-Bridged (arylimido)[tris(3,5-Dimethylpyrazolyl)borato] Molybdenum(v) Complexes
    (Elsevier Ltd., 2005) Sözüer, Hikmet Işıl; Günyar, Alev; Dülger İrdem, Seçkiner; Baya, Miguel; Poli, Rinaldo
    Locate full-text(opens in a new window)|Full Text(opens in a new window)|View at Publisher| Export | Download | Add to List | More... Inorganica Chimica Acta Volume 358, Issue 12, 1 August 2005, Pages 3303-3310 Synthesis, characterization and electrochemical behavior of oxo-bridged (arylimido)[tris(3,5-dimethylpyrazolyl)borato] molybdenum(V) complexes (Article) Topaloglu-Sozuer, I.a , Gunyar, A.a, Dulger-Irdem, S.a, Baya, M.b, Poli, R.b a Department of Chemistry, Faculty of Science, Izmir Institute of Technology, Gulbahce, Urla-35430, Izmir, Turkey b Laboratoire de Chimie de Coordination, UPR CNRS 8241, 205 Route de Narbonne, 31077 Toulouse Cedex, France View references (34) Abstract Reaction of the oxo-molybdenum(V) precursor [MoTp*(O)Cl2] [Tp* = hydrotris(3,5-dimethyl-1-pyrazolyl)borate] with H 2NC6H4R-4 (R = OEt; OPr) in refluxing toluene in the presence of Et3N afforded the binuclear oxo-bridged oxo(arylimido) molybdenum(V) complexes [Tp*Mo(O)Cl](μ-O) [Tp*Mo(NC6H4OR-4)Cl]. Surprisingly, a similar reaction between [MoTp*(O)Cl2] and C6H 5NH2 yielded the previously reported compound [{MoTp*(O)Cl}2(μ-O)] as the only product. The new compounds were characterized by microanalytical data, mass spectrometry, IR and 1H NMR spectroscopy. Cyclic voltammetric studies of the new compounds, of the previously reported compounds [Tp*Mo(O)Cl](μ-O)[Tp*Mo(NAr)Cl] (Ar = C6H4OMe-4, C6H 4F-3, C6H4Cl-4, C6H4Br-4, and C6H4I-3), and of [{MoTp*(O)Cl} 2(μ-O)] revealed a reversible one-electron oxidation process that is little affected by the nature of the substituent on the aryl group, whereas it is greatly affected by replacement of the imido ligand with an oxo ligand. The [{MoTp*(O)Cl}2(μ-O)] compound also shows a one-electron reduction process.
  • Article
    Citation - WoS: 5
    Citation - Scopus: 6
    Synthesis, Spectroscopic Characterization and X-Ray Crystal Structures of Oxo-Bridged Oxo(haloaryl) Imido Hydrotris(3,5-Dimethylpyrazolyl)borate Molybdenum(v) Complexes
    (Taylor and Francis Ltd., 2005) Sözüer, Hikmet Işıl; Dülger İrdem, Seçkiner; Jeffery, John J.; Hamidov, Hayrullah
    Reaction of the oxomolybdenum(V) precursor [MoTp*(O)Cl2] (Tp* = hydrotris(3,5-dimethyl-1-pyrazolyl)borate) with m-fluoroaniline, H2NC6H4F, in toluene afforded the pair of geometric isomers of [MoTp*(O)Cl](μ-O)[MoTp*(Cl)(≡NC 6H4F)] (1a, cis; 1b, trans). Similarly the reaction with m-iodoaniline yielded the compound [MoTp*(O)Cl](μ-O)[MoTp*(Cl) (≡NC6H4I)] (2). This is a new synthetic method for preparing Mo-O-Mo bridged oxo(imido) molybdenum(V) species by double deprotonation of the anilines. The complexes were characterized by IR and 1H-NMR. spectroscopy, FAB mass spectrometry, elemental analysis and X-ray crystallography which revealed that the two chloro ligands are trans to each other in 1b and 2, whereas they are cis to each other in 1a. All compounds have Mo-O-Mo linkages and near linear arylimido moieties.