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    ISSN: 0044-2313
    Keywords: Iron(II) phosphane complexes ; synthesis ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Iron(II) Phosphane Complexes. Synthesis and Crystal Structures of [Fe2I4(dppe)2], [Fe2(SR)4(dppe)2], [Fe(SR′)2(dppp)] and [Fe(SR)2(PMePh2)2] (dppe = Ph2P(CH2)2PPh2; dppp = Ph2P(CH2)3PPh2; R = 2,4,6-Me3C6H2; R′ = 2,4-tBuC6H3)The title compounds were isolated and their structures determined by crystallographic methods. [Fe2I4(dppe)2] (1) and [Fe2(SR)4(dppe)2] (2) form dimeric complexes with the bidentate phosphane binding to different iron atoms. The resulting ten-membered rings of both compounds exhibit a nearly identical conformation. The central FeS2P2 units of the mononuclear complexes [Fe(SR′)2(dppp)] (3) and [Fe(SR)2(PMePh2)2] (4) show like 2 large deviations from ideal C2v symmetry with bonding angles around the central iron atom ranging from 97.2, 92.5, and 96.5° (angle P—Fe—P in 2, 3, and 4, respectively) to 129.0, 129.9, and 133.6° (angle S—Fe—S in 2, 3, and 4, respectively).
    Notes: Die Titelverbindungen wurden dargestellt und ihre Strukturen mit kristallographischen Methoden bestimmt. [Fe2I4(dppe)2] (1) und [Fe(SR)4(dppe)2] (2) bilden zweikernige Komplexe, in denen die zweizähnigen Phosphinliganden jeweils an unterschiedliche Fe-Atome gebunden sind. Die daraus resultierenden zehngliedrigen Ringe sind für beide Verbindungen nahezu identisch. Die zentrale FeS2P2-Einheit der einkernigen Komplexe [Fe(SR′)2(dppp)] (3) und [Fe(SR)2(PMePh2)2] (4) zeigen, wie auch diese Gruppierung in 2, große Abweichungen von der idealen C2v-Symmetrie mit Bindungswinkeln um das zentrale Eisenatom zwischen 97,2, 92,5 und 96,5° (P—Fe—P-Winkel in 2, 3 bzw. 4) und 129,0, 129,9 und 133,6° (S—Fe—S-Winkel in 2, 3 bzw. 4).
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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