Données cristallographiques sur les thiocyanates de tris(éthylènediamine)rhodium(III) actif, racémique et racémique actif

(±)Rh(en)₃(SCN)₃ and (+)Rh(en)₃(SCN)₃, Rh(C₂H₈N₂)₃.(SCN)₃, C₆H₂₄N₆Rh.C₃N₃S₃, crystallize in orthorhombic cells. The lattice constants are respectively a = 14.652 (5), b = 14.268 (6), c = 17.480 (6) Å and a = 14.711 (4), b = 13.481 (3), c = 9.166 (2) Å. They are isomorphic with their homologues (±)Co(en)₃(SCN)₃ and (−)Cr(en)₃(SCN)₃. The active racemate [(+)Rh(en)₃(+)Cr(en)₃](SCN)₆ is isomorphic with the monoclinic form of [(+)Co(en)₃(−)Cr(en)₃](SCN)₆. Its lattice constants are a = 15.707 (5), b = 17.739 (4), c = 9.426 (3) Å and γ = 131.04 (2)°.