Crystal structures of new double complex salts [M(NH3)5Br][AuBr4]2·H2O, where M = Ir, Rh and complex salt [Ir(NH3)5Br]Br2

Abstract

The crystal structures of double complex salts [M(NH3)5Br][AuBr4]2·H2O (M = Ir, Rh) are determined by single crystal XRD. The compounds crystallize in the triclinic system, P-1 space group, Z = 4. Crystallographic characteristics: [Ir(NH3)5Br][AuBr4]2·H2O: a = 8.2982(3) A, b = 15.3045(4) A, c = 17.4378(6) A, α = 73.064(1)°, β = 88.938(1)°, γ = 86.221(1)°, V = 2113.95(12) A3, d x = 4.419 g/cm3, R = 0.0469; [Rh(NH3)5Br][AuBr4]2·H2O: a = 8.2855(2) A, b = 15.2881(3) A, c = 17.4053(4) A, α = 73.015(1)°, β = 88.913(1)°, γ = 86.267(1)°, V = 2104.08(8) A3, d x = 4.165 g/sm3, R = 0.0480. The crystal structure of [Ir(NH3)5Br]Br2 is determined. The compound crystallizes in the orthorhombic system, Pnma space group, Z = 4. Crystallographic characteristics: a = 13.8521(3) A, b = 10.8570(2) A, c = 6.9908(1) A, V = 1049.31(3) A3, d x = 3.273 g/cm3, R = 0.0127.