ChemInform Abstract: Sr₂P₇X (X: Cl, Br, and I): Synthesis, Crystal and Electronic Structures of Double Zintl Salts Containing Heptaphosphanortricyclane, P₇^3‐.

Abstract

Sr2P7I is prepared by solid state reaction of a stoichiometric mixture of the elements (evacuated silica tube, 973 K, 140 h) and Sr2P7Cl and Sr2P7Br are obtained from the reaction of Sr, red P, and SrBr (or SrCl) in the molar ratio of 3:14:1 under similar annealing conditions.