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  • 1
    Electronic Resource
    Electronic Resource
    Synthese und Charakterisierung von Gallium-Phosphor-Heterocubanen (1994)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 127 (1994), S. 67-71 
    Details
    ISSN: 0009-2940
    Keywords: Gallium compounds ; Heterocubanes, gallium-phosphorus ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Synthesis and Characterization of Gallium-Phosphorus HeterocubanesThe reaction of iPrGaCl2 with tBuPLi2 in Et2O at -78°C gives the heterocubane [iPrGaP(tBu)]4 (1) by using the “dilution principle”. {(MesGa)3[GaP(H)tBu][P(tBu)]4} (2) was formed, when three equivalents of MesGaCl2 and one equivalent of GaCl3 in THF at -78°C were treated with 5 equivalents of tBuPLi2. Compounds 1 and 2 were characterized by NMR, IR, and MS techniques as well as by X-ray structure determination. The heterocubane molecules of 1 are disordered in the crystal; every atom site of the central cubical frame work is occupied by gallium and phosphorus atoms (occupation factor 0.5). The structure of 2 contains two crystallographically unique molecules, which are not disordered because of the additional P(H)tBu groups.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19941270110
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  • 2
    Electronic Resource
    Electronic Resource
    Benzylgalliumverbindungen. Koordination von Benzylliganden in Cs[(PhCH2)2GaF2] (1993)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 126 (1993), S. 1579-1585 
    Details
    ISSN: 0009-2940
    Keywords: Gallium compounds ; Gallane, tribenzyl- ; Gallane, dibenzyl(benzyloxy)- ; Gallate, dibenzyldifluoro- ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Benzylgallium Compounds. Coordination of Benzyl Ligands in Cs[(PhCH2)2GaF2]Dissolving (PhCH2)3Ga (1) in THF yields the complex [(PhCH2)3Ga · THF] (2). Reaction of 1 with dry oxygen in toluene at -78°C leads to [(PhCH2)2GaOCH2Ph]2 (3), which is also formed from 1 and PhCH2OH. The salts K[(PhCH2)2GaF2] (5) and Cs[(PhCH2)2GaF2] (6) were obtained from (PhCH2)2GaCl (4) and KF or CsF, respectively, in acetonitrile. Crystal structures were determined for 2, 3, 6 and {[(PhCH2)2GaCl]2 · toluene} (7). Gallane 2 is a chiral monomeric complex in the solid state. The benzyl substituents create a propeller-shaped molecule with a counterclock-wise orientation of the ligands. 3 and 7 are crystallizing as centrosymmetrical dimers with Ga2X2 rings (X=O, Cl). 6 consists in infinite chains of {Cs[(PhCH2)2GaF2]}2 units with Cs-F contacts. In addition to the Cs-F interaction, the coordination of each Cs+ ion by two phenyl rings in a η6- fashion is observed.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19931260712
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  • 3
    Electronic Resource
    Electronic Resource
    Cäsium-Fluor-Vierringe als Strukturmotiv in Cäsium-Triorganofluorometallaten der Gruppe 13Herrn Prof. Dr. Ekkehard Fluck zum 65. Geburtstag gewidmet. (1996)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 129 (1996), S. 355-359 
    Details
    ISSN: 0009-2940
    Keywords: Aluminium compounds ; Gallium compounds ; Indium compounds ; Trimethylfluoro metalates ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Cesium-Fluorine Four-Membered Rings as Structural Motive in Cesium Triorganofluoro Metalates of Group 13The reactions of AlMe3, GaMe3, and InMe3 with CsF in acetonitrile furnish the corresponding trimethylfluoro metalates Cs[Me3MF] (1: M = Al, 2: M = Ga, 3: M = In). The salt-like compounds 1 - 3 were characterized by NMR, IR, and MS techniques as well as by X-ray structure analysis. Cs2F2 four-membered rings are the structure-dominating units in all three compounds. Compound 1 consists of puckered layers of weakly associated Cs2F2 rings parallel to (100), while the four-membered rings in 2 form infinite ladder-type chains. The Cs-F rings in 3 build up a heterocubane with a Cs4F4 core by ring stacking.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19961290317
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