Masking of Lewis acidity trends in the solid-state structures of trichlorido- and tribromido(2,2':6',2''-terpyridine-[kappa]3N,N',N'')gallium(III)

The molecular structures of trichlorido(2,2':6',2''-terpyridine-[kappa]3N,N',N'')gallium(III), [GaCl3(C15H11N3)], and tribromido(2,2':6',2''-terpyridine-[kappa]3N,N',N'')gallium(III), [GaBr3(C15H11N3)], are isostructural, with the...

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Bibliographic Details
Published inActa crystallographica. Section C, Crystal structure communications Vol. 70; no. 3; p. 312
Main Authors Kazakov, Igor V, Bodensteiner, Michael, Timoshkin, Alexey Y
Format Journal Article
LanguageEnglish
Published Chester Wiley Subscription Services, Inc 01.03.2014
Subjects
Chemical bonds
Chemical compounds
Crystal structure
Crystallography
Molecules
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Summary:The molecular structures of trichlorido(2,2':6',2''-terpyridine-[kappa]3N,N',N'')gallium(III), [GaCl3(C15H11N3)], and tribromido(2,2':6',2''-terpyridine-[kappa]3N,N',N'')gallium(III), [GaBr3(C15H11N3)], are isostructural, with the GaIII 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. [PUBLICATION ABSTRACT]
ISSN:0108-2701
1600-5759
DOI:10.1107/S2053229614003349