Synthesis, structure, and electrochemistry and magnetic properties of a novel 1D homochiral MnIII(5-Brsalen) coordination polymer with left-handed helical character

•A novel homochiral MnIII(5-Brsalen) coordination polymer with left-handed helical character has been synthesized.•The molecular structure was determined by single-crystal X-ray diffraction.•UV–vis absorption spectrum, electrochemistry and magnetic properties of the compound have been studied.

A novel homochiral manganese (III) Mn(5-Brsalen) coordination polymer with left-handed helical character by spontaneous resolution on crystallization by using Mn(5-Brsalen) and 4,4-bipyridine, [MnIII(5-Brsalen)(4,4-bipy)]·ClO4·CH3OH (1) (4,4-bipy = 4,4-bipyridine) has been synthesized and structurally characterized by X-ray single-crystal diffraction, elemental analysis and infrared spectroscopy. In compound 1, each manganese(III) anion is six-coordinate octahedral being bonded to four atoms of 5-Brsalen ligand in an equatorial plane and two nitrogen atoms from a 4,4-bipyridine ligand in axial positions. The structure of compound 1 can be described a supramolecular 2D-like structure which was formed by the intermolecular π-stacking interactions between the neighboring chains of the aromatic rings of 4,4-bipyridine and 5-Brsalen molecules. UV–vis absorption spectrum, electrochemistry and magnetic properties of the compound 1 have also been studied.

Graphical abstractA novel homochiral Mn(5-Brsalen) coordination polymer with left-handed helical character by spontaneous resolution on crystallization has been synthesized. The structure of the compound can be described a supramolecular 2D-like structure.Figure optionsDownload full-size imageDownload as PowerPoint slide