Synthesis and crystal chemistry of Ca2NxO2-2xFx (x = 0 to 1) and other compounds

Abstract

Study of the Ca2NxO2-2xFx system through single-crystal X-ray diffraction experiments was done to test the air stability of these compounds, and to subsequently synthesize a "pure" Ca2NF sample. Several syntheses were done to purposefully introduce oxygen into the lattice and to eliminate it from the lattice. Results show a range of oxygen content over a number of characterized structures in this system. The Imma phase of Ca2Fe2O5 was characterized at room temperature for the first time with synchrotron data from the Advanced Light Source at Berkeley Labs, CA and additional X-ray microanalysis data provided by the Materials Research Laboratory in Struthers, Oh.