Heterobimetallic Mn(II)–Hg(II) polynuclear complexes containing Hg(SCN)42− unit – Synthesis, spectroscopic investigations, X-ray studies and magnetic properties

Two novel heterobimetallic coordination polymers with Hg(SCN)42− as a linker have been synthesized and characterised by means of IR, EPR, magnetic measurements and single crystal X-ray. The compounds [Mn(bpzm)Hg(SCN)4]n (1) and [Mn(bdmpzm)2Hg(SCN)4]n (2) form supramolecular framework structures. The compound 1 creates a three-dimensional coordination polymer and compound 2 has one-dimensional chain structure extending along the crystallographic direction [1 0 0]. Variable-temperature magnetic susceptibility measurements show very weak antiferromagnetic interactions between the paramagnetic Mn(II) centres of structures 1 and 2.

Two novel heterobimetallic coordination polymers with Hg(SCN)42− as a linker have been synthesised and characterised by means of IR, EPR, magnetic measurements and single crystal X-ray. The compounds [Mn(bpzm)Hg(SCN)4]n (1) and [Mn(bdmpzm)2Hg(SCN)4]n (2) form polymeric coordination structures. The compound 1 creates a three-dimensional coordination polymer and compound 2 has one-dimensional chain structure extending along the crystallographic direction [1 0 0]. Variable-temperature magnetic susceptibility measurements show very weak antiferromagnetic interactions between the paramagnetic Mn(II) centers of structures 1 and 2.Figure optionsDownload as PowerPoint slideHighlights
► Two Mn/Hg coordination polymers with Hg(SCN)42− as a linker were obtained.
► [Mn(bpzm)Hg(SCN)4]n and [Mn(bdmpzm)2Hg(SCN)4]n form coordination polymer structures.
► The first complex creates a three-dimensional structure.
► The second one has one-dimensional chain structure extending along [1 0 0] direction.
► Magnetic measurements confirms very weak antiferromagnetic interactions.