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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)
Author(s) -
Kazakov Igor V.,
Bodensteiner Michael,
Timoshkin Alexey Y.
Publication year - 2014
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s2053229614003349
Subject(s) - terpyridine , isostructural , denticity , chemistry , gallium , octahedron , crystallography , lewis acids and bases , metal , inorganic chemistry , stereochemistry , crystal structure , organic chemistry , catalysis
The molecular structures of trichlorido(2,2′:6′,2′′‐terpyridine‐κ 3 N , N ′, N ′′)gallium(III), [GaCl 3 (C 15 H 11 N 3 )], and tribromido(2,2′:6′,2′′‐terpyridine‐κ 3 N , N ′, N ′′)gallium(III), [GaBr 3 (C 15 H 11 N 3 )], 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 GaBr 3 . 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.