Spezielle Alkylammoniumhexachlorometallate, II [1] Synthese und Kristallstruktur von Bis(1,2-diammoniopropan)hexachlororhodat(III)-chlorid, [H3N-CH(CH3)-CH2-NH3]2[RhCl6]Cl/ Alkylammonium Hexachlorometallates, II [1] Synthesis, and Crystal Structure of Bis(1,2-diammoniopropane) Hexachlororhodate(III) Chloride, (H3N-CH(CH3)-CH2-NH3]-[RhCl6]Cl

Abstract

Bis(1,2-diammoniopropane) hexachlororhodate(III) chloride, [H3N-CH(CH3)-CH2-NH3]2 [RhCl6]Cl (1) has been obtained by the reaction of rhodium(III) chloride with rac-1,2- diammoniopropane dihydrochloride in hydrochloric acid solution. The quasi-ternary compound, which crystallizes in the orthorhombic space group Pbca (a - 11.0007(13) Å, b = 22.181(2) A, c = 14.638(2) A, V = 3571.7(7) Å3, \ T = -120 °C, Z - 8) contains two crystallographically independent 1,2-diammoniopropane ions beside one hexachlororhodate and one chloride ion. One of the cations shows a R/S-S/R-disorder of enantiomeric pairs in the centrosymmetric crystal lattice. The packing scheme is determined by a complex framework of hydrogen bonds.