Organometallic diaza-dimetalla-norbornanes and -cyclohexanes of aluminium, gallium and indium

Tian X, Fröhlich R, Mitzel NW (2005)
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE 631(8): 1442-1448.

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Selective formation of 1,3,3,4.6,6-hexamethyl-1,4-diaza3,6-diinda-norborane was achieved by the reaction of bis(lithiomethyl-methylamino)methane with dimethylindium chloride by simultaneous formation of two dative metal-carbon and two metal-nitrogen bonds accompanied by two ring closures. The synthesis of heterometallic compounds of this type, namely 1,3,3,4.6,6-hexamethyl-3-alumina-1,4-diaza-6-galla-norborane [Me2AlCH2N(Me)-CH2[N(Me)CH2GaMe2], was also attempted by the reaction of his(lithiomethyl-methylamino)methane with dimethylaluminium and -gallium chloride. This compound is formed, but cannot be separated from the simultaneously formed homometallic compounds [Me2MCH2N(Me)](2)CH2, (M = Al, Ga). The compounds were identified by elemental analyses, mass spectra, NMR spectroscopy (H-1, C-13), and by determination of their crystal structures in which they are present its monomers. The norbornane-like structure is favoured over potential isomers containing three-membered rings and over polymeric aggregation in both compound. In addition, the crystal structure of dimethyl(dimethylaminomethyl)indium was determined by single crystal X-ray diffraction, which shows an intermolecular aggregation into it six-membered ring dimer.
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Tian X, Fröhlich R, Mitzel NW. Organometallic diaza-dimetalla-norbornanes and -cyclohexanes of aluminium, gallium and indium. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE. 2005;631(8):1442-1448.
Tian, X., Fröhlich, R., & Mitzel, N. W. (2005). Organometallic diaza-dimetalla-norbornanes and -cyclohexanes of aluminium, gallium and indium. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 631(8), 1442-1448. doi:10.1002/zaac.200400552
Tian, X., Fröhlich, R., and Mitzel, N. W. (2005). Organometallic diaza-dimetalla-norbornanes and -cyclohexanes of aluminium, gallium and indium. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE 631, 1442-1448.
Tian, X., Fröhlich, R., & Mitzel, N.W., 2005. Organometallic diaza-dimetalla-norbornanes and -cyclohexanes of aluminium, gallium and indium. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 631(8), p 1442-1448.
X. Tian, R. Fröhlich, and N.W. Mitzel, “Organometallic diaza-dimetalla-norbornanes and -cyclohexanes of aluminium, gallium and indium”, ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, vol. 631, 2005, pp. 1442-1448.
Tian, X., Fröhlich, R., Mitzel, N.W.: Organometallic diaza-dimetalla-norbornanes and -cyclohexanes of aluminium, gallium and indium. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE. 631, 1442-1448 (2005).
Tian, X, Fröhlich, R, and Mitzel, Norbert W. “Organometallic diaza-dimetalla-norbornanes and -cyclohexanes of aluminium, gallium and indium”. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE 631.8 (2005): 1442-1448.
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