(PPh4)3Ag[WF5(C2I2)]2; synthese,IR-spektrum und kristallstruktur |
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| Affiliation: | 1. Canadian Centre for Research in Advanced Fluorine Technologies, University of Lethbridge, Canada;2. Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Drive W, Lethbridge, AB, T1K 3M4, Canada;1. School of Chemistry, University of Southampton, Southampton SO17 1BJ, UK;2. Department of Chemistry, University of Leicester, Leicester, LE1 7RH, UK;1. Department of Chemistry, Northeast Normal University, Changchun, Jilin 130024, PR China;2. National & Local United Engineering Lab for Power Battery, Northeast Normal University, Changchun 130024, PR China;1. A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russian Federation;2. National Research Center Kurchatov Institute, 123182 Moscow, Russian Federation;1. Department of Applied Science, Government Engineering College Kozhikode, Westhill, Kerala 673 005, India;2. Theoretical and Computational Chemistry Laboratory, Department of Chemistry, National Institute of Technology Calicut, Kozhikode, Kerala 673 601, India;3. Department of Applied Chemistry, Cochin University of Science and Technology, Thrikkakara, Kochi 682 022, India;1. Department of Chemistry, College of Science, Tikrit University, Tikrit, Iraq;2. Department of Chemistry, College of Science, University of Kirkuk, Kirkuk, Iraq;3. Instituto de Sintesis Quimica y Catalisis Homogenea (ISQCH), Facultad de Ciencias, Universidad de Zaragoza, Plaza S. Francisco s/n, 50009, Spain;4. Institut für Chemie, Martin-Luther-Universitut, Halle-Wittenberg, Kurt-Mothes-Str. 2, D-06120 Halle, Germany |
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| Abstract: | The compound (PPh4)3Ag[WF5(C2I2)]2 is formed by the reaction of PPh4[WCl5(C2I2)] with an excess of silver fluoride in acetonitrile. The compound is soluble in CH2Cl2; when CCl4 is added single red crystals are obtained. The complex is characterized by its IR spectrum and by an X-ray structural study (4060 observed, independent reflexions, R = 0.105). Crystal data: orthorhombic, space group P21212, Z = 2, a 4464(2), b 1074(1), c 777,6(4) pm. The compound consists of PPh4+ and Ag+ ions, and the anions [WF5(C2I2)]2−, in which the tungsten atoms are seven-coordinated by five fluorine atoms and two carbon atoms. The diiodoacetylene ligand is symmetrically bonded sideways to the tungsten atom. The four equatorial F atoms have WF bond lengths of 191 pm, whereas the fluorine atom in trans-position to the WC2 group is located 199 pm from the metal centre. The PPh4+ ions are stacked in parallel columns. |
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