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    Novel Tridentate N,S,N-Metal Compounds of Zinc, Germanium and Phosphorus

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    Author
    Lortie, John
    Keyword
    non-innocent ligand
    main group
    
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    URI
    http://hdl.handle.net/10464/14131
    Abstract
    A novel ligand based on a flexible NSN tridentate framework, and main group compounds of the general formula M(NSN) were prepared on zinc, germanium, and phosphorus. The compound ZnNSN(dimethylaminopyridine) (III-45a) is fluxional with III-46a in tetrahydrofuran, and its exchange parameters were calculated from NMR measurements. An X-ray structure was obtained for GeNSN (III-47a) crystals isolated from diethylether and exhibits an envelope-like geometry with coordination of the soft sulfur donor to the germanium centre. III-47a was not reactive with CH3I but showed reactivity with 3,6-di-tert-butyl-o-benzoquinone. ClPNSN (III-53) was prepared both by transmetallation of III-46a and by a reaction of an in situ generated Li2NSN and PCl3. HPNSN (III-52) was prepared by halogen exchange of III-53 and L-selectride.
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