Two half-sandwich organometallic single-ion magnets with toluene coordinated to the Dy(III) ion: The [(C 7 H 8 )Dy(AlCl 4 ) 3 ] and [(C 7 H 8 )Dy(AlBr 4 ) 3 ] complexes

Two half-sandwich organodysprosium complexes [(C7H8)Dy(AlCl4)3] and [(C7H8)Dy(AlBr4)3] were synthesized by modifying the arene ligand of the complex [(C6Me6)Dy(AlCl4)3]. Single X-ray diffraction data reveals the local geometry of Dy(III) ion is close to pentagonal bipyramid. Magnetic investigation shows both are single-ion magnets with enhanced magnetic properties.