Crystal structure of bis(μ2-triphenylacetato-κO:κO′)bis(diisobutylaluminium)статья
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Аннотация:Single crystals of bis(triphenylacetato-μ2-κO:κO′)-tetra(iso-butyl)-dialuminium [Al(iBu)2(O2CCPh3)]2 or C56H66Al2O4,have been formed in the reaction between tris(tetrahydrofuranate) of neodymium triphenylacetate,[Nd(Ph3CCOO)3(THF)3], and tri(iso-butyl)aluminium, Al(iBu)3, in hexane followed by low temperature crystallization (243 K) from the reaction mixture. The structure has triclinic (P1) symmetry at 120 K. The dimeric complex
[Al(iBu)2(O2CCPh3-μ-κO:κO′)]2 is located on an inversion centre. Triphenylacetate ligand demonstrates the μ-κO:κO′-bridging coordination mode, leading to formation of an octagonal Al2O4C2 core. The complex displays HPh.·CPh intermolecular interactions.