Space group assignment based on single-crystal X-ray data is a difficult task when solvated complexes are concerned. The crystal structure reported by Lutz et al. concerns a solvated form of our complex [Fe(phen)2Cl 2]NO3. Loss of solvent molecules was prevented by the much lower temperature used for recording X-ray diffraction data. Great care should be taken during crystal analysis, especially depending on whether it has been performed under solvent-free or in solvated conditions. An accurate chemical composition of inorganic complexes containing solvate molecules can be achieved only after annealing for a long time at a rigorously constant temperature.
All Science Journal Classification (ASJC) codes
- Inorganic Chemistry