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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 108 (1975), S. 3317-3325 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Reactivity of trans-Cyano(pseudo)halogenobis(triphenylphosphine)platin(II). ComplexesThe oxidative addition of cyanogen halides to Pt(PPh3)4 affords the mixed trans-cyanohalogeno complexes (Ph3P)2Pt(X)CN 1a-c. In these complexes the halide ligands can be easily exchanged ↔other anions due to the trans effect of the cyanide group. The azide and fulminate ligand of 1d and g can be converted under mild conditions into iso(thio)cyanato groups. The cycloadduct 4b of 1d and acetonitrile contains N1- and N2-bonded 5-methyltetrazolate ligands. Above 190°C fluxional exchange N1 ↔ N2 ↔ N 3 ↔ N4 of the coordinated tetrazolate is observed.
    Notes: Die oxidative Addition von Halogencyan an Pt(PPh3)4 liefert die gemischten trans-Cyanohalogeno-Komplexe (Ph3P)2Pt(X)CN 1a-c. In diesen kann Halogenid aufgrund des trans-Effekts der Cyanogruppe leicht durch andere anionische Liganden ausgetauscht werden. Die Azid- und Fulminatliganden in 1d und g sind besonders reaktiv und lassen sich unter milden Bedingungen in die Iso(thio)cyanato-Gruppe umwandeln. Der durch Cycloaddition von Acetonitril an die Azid-gruppe von 1 d gebildete Komplex 4 b enthält N1- und N2-gebundene 5-Methyltetrazolat-Liganden. Oberhalb 190°C wird eine N1 ↔ N2 ↔ N3 ↔ N4-Fluktuation des koordinierten Tetrazolats festgestellt.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
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