Low valent phosphorus in the molecular anions [P5Se12]5− and β-[P6Se12]4−: phase change behavior and near infrared second harmonic generation†
Abstract
The caesium salts of the novel molecular anions [P5Se12]5− and [P6Se12]4− are phase change materials and exhibit near infrared, non-linear optical second harmonic generation; [P5Se12]5− is a coordination complex with an octahedral P3+ center chelated by two [P2Se6]4−