Navigation through high-dimensional chemical space: discovery of BaY[SiO]O and BaY[SiO].

Two compounds were discovered in the well-studied BaO-YO-SiO phase field. Two different experimental routines were used for the exploration of this system due to the differences of synthetic conditions and competition with a glass field. The first phase BaY[SiO]O was isolated through a combination of energy dispersive X-ray spectroscopy analysis and diffraction techniques which guided the exploration.