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  • Inorganic Chemistry  (3)
  • 1975-1979  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 415 (1975), S. 97-103 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Experiments on the Oxidative Addition of Thionylhalides to Transition Metal ComplexesThe complexes [(C6H5)3P]4Pd and [(C6H5)3P]2Ni(NO)Cl react with SOX2 to trans [(C6H5)3P]2PdX2 (X = Cl, Br) resp. to [(C6H5)3PX][NiX3] (X = Cl). Furthermore (C6H5)3PO and (C6H5)3PS are formed. In contrast SOCl2 is added oxidatively by [(C6H5)3P]2Ir(CO)Cl to the complex [(C6H5)3P]2Ir(CO)(Cl2)SOCl.
    Notes: Die Komplexe [(C6H5)3P]4Pd und [(C6H5)3P]2Ni(NO)Cl reagieren mit SOX2 zu trans-[(C6H5)3P]2PdX2 (X = Cl. Br) bzw. [(C6H5)3PX][NiX3] (X = Cl). Weiterhin bilden sich (C6H5)3PO und (C6H5)3PS. Im Gegensatz dazu wird SOCl2 durch [(C6H5)3P]2 Ir(CO)Cl oxydativ zu dem Komplex [(C6H5)3P]2 Ir(CO)(Cl2)SOCl addiert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 418 (1975), S. 243-246 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: P2J3 - a New Complex LigandP2J4 and Na2Cr(CO)5 react in benzene to the monomeric diamagnetic complex (CO)4CrP2J3. The 31P-nmr spectrum shows the presence of different bonded phosphorus atoms. The exchange of one iodine atom between the P atoms leads to a temperature dependent equilibrium with a symmetrical transition state. Triphenyl- and tricyclohexylphosphine react with (CO)4CrP2J3 to (CO)4CrPJ2 · P(C6H5)3 resp. (CO)4CrPJ2 · P(C6H11)3, probably of dimeric nature.
    Notes: P2J4 und Na2Cr(CO)5 reagieren in Benzol zu dem monomeren, diamagnetischen Komplex (CO)4CrP2J3. Das 31P-NMR-Spektrum zeigt die Anwesenheit unterschiedlich gebundener Phosphoratome. Der Austausch eines Jodatoms zwischen den P-Atomen führt zu einem temperaturabhängigen Gleichgewicht, in dem ein symmetrischer Übergangszustand auftritt. Triphenyl- und Tricyclohexylphosphin reagieren mit (CO)4CrP2J3 zu (CO)4 · P(C6H5)3 bzw. (CO)4 CrPJ2 · P(C6H11)3, wahrscheinlich dimerer Natur.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 432 (1977), S. 160-166 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Use of Elemental Phosphorus as Ligand in Iron CarbonylsWhite phosphorus and Fe2(CO)9 react in benzene at room temperature to the monomeric diamagnetic complex [(CO)4Fe]3P4. The Mössbauer spectrum proves the presence of penta- and hexacoordinated Fe atoms in the ratio 1:2. The i.r. spectrum also suggests different bonded Fe(CO)4 groups. As the 31P-n.m.r. spectrum shows, the 4 P atoms are equivalent. It is supposed that one Fe(CO)4 group fluctuates between the P atoms. At 70°C P4 and Fe2(CO)9 react to the polymeric diphosphorous complex [(CO)3FeP2]n. Its synthesis succeeds also with Fe(CO)5 and P4 under u.v. irradiation. Additionally [(CO)4Fe]3P4 can be decomposed to [(CO)3FeP2]n by warming or irradiation. The Mössbauer spectrum of this complex shows equivalent Fe atoms with the coordination number 6. Possible structures are discussed.
    Notes: Weißer Phosphor und Fe2(CO)9 reagieren in Benzol bei Raumtemperatur zu dem monomeren, diamagnetischen Komplex [(CO)4Fe]3P4. Das Mössbauerspektrum belegt die Anwesenheit fünffach und sechsfach koordinierter Fe-Atome im Verhältnis 1:2. Auch das IR-Spektrum legt unterschiedlich gebundene Fe(CO)4-Gruppen nahe. Wie das 31P-NMR-Spektrum zeigt, sind alle 4 P-Atome äquivalent. Es wird angenommen, daß eine Fe(CO)4-Gruppe zwischen den P-Atomen fluktuiert. Bei 70°C setzen sich P4 und Fe2(CO)9 zu dem polymeren Diphosphorkomplex [(CO)3FeP2]n um. Dessen Synthese gelingt auch aus Fe(CO)5 und P4 unter UV-Bestrahlung. Ebenso kann [(CO)4Fe]3P4 durch Erwärmen oder Belichten in [(CO)3FeP2]n zersetzt werden. Das Mössbauerspektrum dieses Komplexes zeigt äquivalente Fe-Atome mit der Koordinationszahl 6. Mögliche Strukturen werden diskutiert.
    Additional Material: 5 Ill.
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