Synthesis, Structures, and Magnetic Properties of Chiral One‐dimensional CrIII‐MnIII Heterobimetallic Complexes Based on [(Tp)Cr(CN)3]–

Abstract Two Cr III ‐Mn III heterobimetallic compounds, [Mn(( R , R )‐5‐MeOSalcy)Cr(Tp)(CN) 3 · 2CH 3 CN] n ( 1‐ RR ) and [Mn(( S , S )‐5‐MeOSalcy)Cr(Tp)(CN) 3 ·2CH 3 CN] n ( 1‐ SS ) [Salcy = N , N ′‐(1,2‐cyclohexanediylethylene)bis(salicylideneiminato) dianion], were synthesized by using the tricyanometalate building block, [(Tp)Cr(CN) 3 ] – [Tp = tris(pyrazolyl) hydroborate] and chiral Mn III Schiff base precursors. Structural analyses and circular dichroism (CD) spectra revealed that 1‐ RR and 1‐ SS are a pair of enantiomers containing a neutral cyano‐bridged zigzag chain with (–Cr–C≡N–Mn–N≡C–) n as the repeating unit. Magnetic studies show that antiferromagnetic couplings between Cr III and Mn III ions occur by cyanide bridges. 1‐ RR and 1‐ SS present metamagnetic, spin‐canting, and antiferromagnetic order behaviors at low temperatures.