Crystal growth,properties, and structure refinements of some rhenium phosphides and arsenophosphides

Small single crystals of Re₂P and Re₃P₄ were grown in a tin flux. Their crystal structures were refined from single crystal diffractometer data to residuals of R = 0.055 and R = 0.049, respectively. The new compound ReP_2.3 was prepared. Re₆P₁₃ forms an extended solid solution with As up to Re₆As_10.7P_2.3. Re₃P₄ is diamagnetic. ReP₄ is a diamagnetic semiconductor with a band gap of 0.54 eV. Systematic trends in the structural chemistry of rhenium phosphides are discussed.