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  • 1
    ISSN: 0044-2313
    Keywords: 1λ5,3λ5-diphosphete ; iron, chromium, tungsten complexes ; nmr, mass, ir spectra ; X-ray structures ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Transition Metal Complexes of 1,1,3,3-Tetrakis(dimethylamino)-1λ5,3λ5-Diphosphete1,1,3,3-Tetrakis(dimethylamino)-1λ5,3aλ5-diphosphete, 1, reacts with W(CO)6 to yield the isomeric complexes {1,1,3,3-tetrakis(dimethylamino)-1λ5,3λ5-diphosphete}(pentacarbonyl)tungsten 4 and {1,1,3,3-tetrakis(dimethylamino)-1,4-dihydro-1λ5,3λ5-[1,3]diphosphetium}(pentacarbonyl)tungsten 5. With Cr(CO)6 the complex {1,1,3,3-tetrakis(dimethylamino)-1λ5,3λ5-diphosphete}(pentacarbonyl)chromium 6 is formed. From the reaction products of Fe3(CO)12 and Fe2(CO)9 with 1 the complex {1,1,3,3-tetrakis(dimethylamino)-1λ5,3λ5-diphosphete}(pentacarbonyl)iron 7 could be isolated. Properties, nmr, ir and mass spectra of the new compounds are reported. 6 and 7 were characterized by X-ray structure determinations.
    Notes: 1,1,3,3-Tetrakis(dimethylamino)-1λ5,3λ5-diphosphet, 1, reagiert mit W(CO)6 zu den isomeren Komplexen {1,1,3,3-Tetrakis(dimethylamino)-1λ5,3λ5-diphosphet}(pentacarbonyl)wolfram 4 und {1,1,3,3-Tetrakis(dimethylamino)-1,4-dihydro-1λ5,3λ5-[1,3]diphosphetium}(pentacarbonyl)wolfram 5, mit Cr(CO)6 zu dem Komplex {1,1,3,3-Tetrakis(dimethylamino)-1λ5,3λ5-diphosphet}(pentacarbonyl)chrom 6. Aus den Reaktionsprodukten von Fe3(CO)12 und Fe2(CO)9 mit 1 konnte der Komplex {1,1,3,3-Tetrakis(dimethylamino)-1λ5,3λ5-diphosphet}(pentacarbonyl)eisen 7 isoliert werden. Eigenschaften, NMR-, IR- und Massenspektren der neuen Verbindungen werden mitgeteilt. 6 und 7 wurden zusätzlich durch Kristallstrukturanalysen charakterisiert.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0044-2313
    Keywords: 1λ5,3λ5-diphosphete ; (phosphonioalkinyl)(tetracarbonyl)iron ; acyl(tetracarbonyl)iron ; nmr, mass, ir spectra ; X-ray structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: A (Phosphonioalkinyl)- and an Acetyl(tetracarbonyl)ironFrom the reaction of 1,1,3,3-tetrakis(dimethylamino)-1λ5,3λ5-diphosphete, 1, and Fe(CO)5 {[bis(dimethylamino)phosphoryl-methyl]-bis(dimethylamino)phosphonioethinyl}(tetracarbonyl)iron, 4, and {1,1,3,3-tetrakis(dimethylamino)-1,4-dihydro- 1λ5,3λ5-[1,3]diphosphetium-2-carbonyl}(tetracarbonyl)-iron, 5, can be isolated as crystalline products. The nmr, mass and ir spectra of the two compounds as well crystal and molecular structures of 4 are reported. The bonding situation in compounds 4 and 5 are discussed in detail.
    Notes: Aus dem Reaktionsgemisch von 1,1,3,3-Tetrakis(dimethylamino)-1λ5,3λ5-diphosphet, 1, und Fe(CO)5 können {[Bis(dimethylamino)phosphoryl-methyl]-bis(dimethylamino)phosphonioethinyl}(tetracarbonyl)eisen, 4, und{1,1,3,3-Tetrakis(dimethylamino)-1,4-dihydro-1λ5,3λ5-[1,3]diphosphetium-2-carbonyl}(tetracarbonyl)eisen, 5, als kristalline Produkte isoliert werden. Die NMR-, Massen- und IR-Spektren der beiden Verbindungen werden mitgeteilt. Von 4 konnten die Kristall-und Molekülstruktur ermittelt werden. Die Bindungsverhältnisse in 4 und 5 werden eingehend diskutiert.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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