On tetrachlorophosphonium chlorometallates of rhenium and molybdenum: Syntheses, crystal structures and magnetism of (P Cl4)2 (Re2 Cl10) and (P Cl4)3 (Re Cl6)2 and the magnetic properties of (P Cl4)2 (Mo2 Cl10),
Zeitschrift fuer Anorganische und Allgemeine Chemie 625, 975 (1999)