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The synthesis and characterization of germanium dichloride and dimethyl aluminium chloride derivatives of the 2,2-dipyridylamine ligand

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The reactions of germanium dichloride and dimethyl aluminium chloride with 2,2-dipyridylamine (dpa) affords germanium and organo-aluminium complexes. Structural characterization reveals that the preferential coordination site of both germanium and aluminium is within the sterically protected pyridyl, (pyridyl = C5H5N = py), pocket. Py2NGeCl, compound (1), crystallizes in the triclinic space group, P-1, with cell coordinates; a=8.2956(11), b=9.9938(13), c=12.6517(17), α=92.033(2)°, β=92.834(2)°, γ=91.685(2)°. The aluminium complex, Py2NAlMe2·Al(Me)Cl, (2), crystallizes in the orthorhombic space group, Pna2(1), with cell parameters: a=13.3707(10), b=10.8706(8), c=16.1306(12). The X-ray analysis of the side products of these reactions, the lithium halide adducts are also reported.

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Acknowledgment

TCU, TCU-RCAF and the Welch Foundation.

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Authors and Affiliations

  1. Department of Chemistry, Texas Christian University, Fort Worth, TX, 76129, USA

    Audra F. Gushwa & Anne F. Richards

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  1. Audra F. Gushwa
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  2. Anne F. Richards
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Correspondence to Anne F. Richards.

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Supplementary Information

Crystallographic data for the structural analysis has been deposited with the Cambridge Crystallographic Data Centre, CCDC No. 611221 for compound (1), CCDC No. 611223, compound (2), CCDC No. 611228, compound (3) and CCDC No. 611227 for compound (4).

Copies of this information may be obtained free of charge from: The Director, CCDC, 12 Union Road, Cambridge, CB2 1EZ UK, Fax. (int code) +44(1223)336-033 or Email: deposit@ccdc.cam.ac.uk or http://www.ccdc.cam.ac.uk.

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Gushwa, A.F., Richards, A.F. The synthesis and characterization of germanium dichloride and dimethyl aluminium chloride derivatives of the 2,2-dipyridylamine ligand. J Chem Crystallogr 36, 851–856 (2006). https://doi.org/10.1007/s10870-006-9139-8

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