One-pot synthesis of an Mn(III)-Cu(II)-Mn(III) trinuclear heterometallic compound formed by Mn⋯S-Cu-S⋯Mn supramolecular interactions: Crystal structure of [{Mn < sup > III < /sup > (salph)(H < inf > 2 < /inf > O)} < inf > 2 < /inf > {Cu < sup > II < /sup > (mnt) < inf > 2 < /inf > }]·4DMF

Abstract

A one-pot synthesis, that includes CuCl2-2H 2O, Na2mnt, H2salph and Mn(CH 3COO)3·H2O, leads to the isolation of a trinuclear heterometallic compound [{MnIII(salph)(H 2O)}2{CuII(mnt)2}]·4DMF (1) formed by Mn⋯S-Cu-S⋯Mn supramolecular interactions. Compound 1 crystallizes in the monoclinic space group P21/c with a = 13-433(4), b = 16-283(5), c = 15-072(4) A°, ß= 107-785(4)°, Z = 2. In the crystal structure, the complex anion [CuII(mnt)2]2- bridges two [MnIII(salph)(H2O)]1+ cations through Mn⋯S contacts. The non-covalent hydrogen bonding and π-π interactions among the trinuclear [{MnIII (salph)(H 2O)}2{CuII(mnt)2}] complexes lead to an extended chain-like arrangement of [MnIII(salph) (H 2O)]1+ cations with [Cu (mnt2)2- anions embedded in between these chains. © Indian Academy of Sciences.