Acta Cryst. (2013). C69, 25-28 [ doi:10.1107/S0108270112049281 ]
Abstract: The lanthanum(III) complexes tris(3,5-diphenylpyrazolato-2N,N')tris(tetrahydrofuran-O)lanthanum(III) tetrahydrofuran monosolvate, [La(C15H11N2)3(C4H8O)3]·C4H8O, (I), and tris(3,5-diphenyl-1,2,4-triazolato-2N1,N2)tris(tetrahydrofuran-O)lanthanum(III), [La(C14H10N3)3(C4H8O)3], (II), both contain LaIII atoms coordinated by three heterocyclic ligands and three tetrahydrofuran ligands, but their coordination geometries differ. Complex (I) has a mer-distorted octahedral geometry, while complex (II) has a fac-distorted configuration. The difference in the coordination geometries and the existence of asymmetric La-N bonding in the two complexes is associated with intramolecular C-HN/O interactions between the ligands.
Formula: [La(C15H11N2)3(C4H8O)3]·C4H8O and [La(C14H10N3)3(C4H8O)3]
Structure factor file (CIF format) (469.1 kbytes)
Structure factor file (CIF format) (433.5 kbytes)
To open or display or play some files, you may need to set your browser up to use the appropriate software. See the full list of file types for an explanation of the different file types and their related mime types and, where available links to sites from where the appropriate software may be obtained.
The download button will force most browsers to prompt for a file name to store the data on your hard disk.
Where possible, images are represented by thumbnails.
Copyright © International Union of Crystallography