Crystal structures of potassium tri­fluorido­(4-meth­oxy­phen­yl)borate and potassium tri­fluorido(4-fluoro­phen­yl)borate

The title compounds, K(+)·C(7)H(7)BF(3)O(−), (I), and K(+)·C(6)H(4)BF(4) (−), (II), are mol­ecular salts containing para-substituted phenyl­tri­fluorido­borate anions. In each compound, the B atom adopts a distorted tetra­hedral BCF(3) geometry. Despite their different compositions and space groups,...

Descripción completa

Detalles Bibliográficos
Autores principales: Harrison, William T. A., Wardell, James L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2014
Materias:
Research Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4158529/
https://www.ncbi.nlm.nih.gov/pubmed/25249857
http://dx.doi.org/10.1107/S1600536814009684
Descripción
Sumario:The title compounds, K(+)·C(7)H(7)BF(3)O(−), (I), and K(+)·C(6)H(4)BF(4) (−), (II), are mol­ecular salts containing para-substituted phenyl­tri­fluorido­borate anions. In each compound, the B atom adopts a distorted tetra­hedral BCF(3) geometry. Despite their different compositions and space groups, the irregular KF(8) coordination polyhedra of the potassium cations in the structures are almost identical. These polyhedra share faces and edges, generating infinite (010) layers in (I) and infinite (001) layers in (II). In (I), adjacent layers are stacked in an AAA… fashion, whereas in (II), they are stacked in an ABAB… sequence.

Ejemplares similares