The X-ray structure determination of two compounds, each belonging to one of the two series, allowed the experimental validation of the initial rationale.
This method was confirmed to be efficient for reducing the number of structural parameters required in the refinement in comparison to the conventional three-dimensional description.
O hydrogen bonds and a two-centre iodo. The hydroxyl moieties are distributed along the outer edges of the ribbon and in phase I they connect the ribbons into a layer by chains of OD. The X-ray structure determination of two compounds, each belonging to one of the two series, allowed the experimental validation of the initial rationale.
The near-neighbor relations between molecules remain unchanged through all twin boundaries. The obtained fraction of monoclinic grains develop twinned structures, but there is still a lack of information about the character of grain boundaries formed in doped monoclinic solid solutions.
A non-conventional mechanism of strain relaxation has been proposed, which is competitive with respect to the usual formation of misfit dislocations. O contact formed to a carboxylate in another layer.
Neutron diffraction allows the full description of the H-atom positions in this molecular material, which is vital in benchmarking related crystal-structure predictions.
O hydrogen bonds, but short I.
A layer can assume four different but equivalent positions with respect to its nearest neighbor.
The chains are linked into a ribbon by a second set of ND.
These are fully and accurately detailed by the neutron diffraction study. These are fully and accurately detailed by the neutron diffraction study. Omission of the superstructure reflections leads to orthorhombic Laue symmetry.
The model reveals the presence of O-phospho-l-serinate monoanions, ammonium cations and partly disordered water molecules. A layer can assume four different but equivalent positions with respect to its nearest neighbor.
This minor deviation from pseudo-symmetry could not be identified by X-ray diffraction.
This is achieved by modifying the relative orientations of molecules and by encouraging the formation of denser structures in which molecules pack together more efficiently.
O contact formed to a carboxylate in another layer.
O hydrogen bonds, together with a two-centre iodo. O hydrogen bonds, together with a two-centre iodo.
It has been found that the values of bond-valence parameters decrease with increasing lanthanide atomic number for coordination compounds. O contacts are absent from the structure.
O hydrogen bonds, two two-centre iodo. The four structures with maximum degree of order, one of which is the observed one, and the family reflections common to all domains are identified. The obtained fraction of monoclinic grains develop twinned structures, but there is still a lack of information about the character of grain boundaries formed in doped monoclinic solid solutions. The near-neighbor relations between molecules remain unchanged through all twin boundaries.