Synthesis and Crystal Structure of an Oligomeric Lithium Bis(amido)hydridooxidoaluminate Cluster, [{Li(C14H30N2)AlHO1/2}4] |
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| Authors: | Michael G Gardiner Dr Colin L Raston |
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| Institution: | 1. Private Bag 75, School of Chemistry, University of Tasmania, Hobart, TAS, 7001/Australia, Fax: +61(0)3 6226 2858;2. Crawley 6009/Western Australia, Centre for Strategic Nano‐Fabrication, School of Biomedical, Biomolecular and Chemical Sciences, Chemistry M313, The University of Western Australia |
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| Abstract: | The lithium bis(amido)hydridooxidoaluminate cluster {Li(C14H30N2)AlHO1/2}4] has been synthesized during systematic metallation/hydrometallation studies of a series of 1,4‐diazabut‐1‐enes with lithium aluminiumhydride. Formation of the complex is presumably derived from partial hydrolysis of the related lithium bis(amido)dihydridoaluminate and has been characterized using single crystal X‐ray diffraction. The complex crystallizes in the monoclinic space group C2/c (No. 15) with a = 25.012(2) Å, b = 10.673(2) Å, c = 28.673(3) Å, β = 115.855(7)°, V = 6887(1) Å3, Z = 4. The complex exhibits an oligomeric structure of crystallographic C2 symmetry, comprised of complex multicyclic units arising from extensive metal, hydride, oxide and ligand bridging interactions. These associations give rise to edge‐fused, non‐planar NAlOLi four‐membered rings tightly binding two of the diamido‐chelated aluminate units, with these in turn aggregating further via two of the μ2‐hydrides involving lithium atoms. |
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| Keywords: | Alkalimetals Aluminium Hydrides Hydrogen transfer Metalations |
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