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Masking of Lewis Acidity Trends in the Solid-State Structures of Trichlorido- And tribromido(2,2':6',2''-terpyridine-κ(3)N,N',N'')gallium(III)

Masking of Lewis Acidity Trends in the Solid-State Structures of Trichlorido- And tribromido(2,2':6',2''-terpyridine-κ(3)N,N',N'')gallium(III)

Igor V Kazakov, Michael Bodensteiner, Alexey Y Timoshkin

Acta Crystallogr C Struct Chem. 2014 Mar;70(Pt 3):312-4.

PMID: 24594724

Abstract:

The molecular structures of trichlorido(2,2':6',2''-terpyridine-κ(3)N,N',N'')gallium(III), [GaCl3(C15H11N3)], and tribromido(2,2':6',2''-terpyridine-κ(3)N,N',N'')gallium(III), [GaBr3(C15H11N3)], are isostructural, with the Ga(III) atom displaying an octahedral geometry. It is shown that the Ga-N distances in the two complexes are the same within experimental error, in contrast to expected bond lengthening in the bromide complex due to the lower Lewis acidity of GaBr3. Thus, masking of the Lewis acidity trends in the solid state is observed not only for complexes of group 13 metal halides with monodentate ligands but for complexes with the polydentate 2,2':6',2''-terpyridine donor as well.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP13450889	Gallium(III) bromide		13450-88-9	Price

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