Ferromagnetic coupling mediated by Coπ non-covalent contacts in a pentacoordinate Co(ii) compound showing field-induced slow relaxation of magnetization.

[Co(II)(dpt)(NCS)2], where dpt = bis(3-aminopropyl)amine, was identified as a pentacoordinate Co(II) compound showing field-induced slow relaxation of magnetization. Furthermore, intermolecular ferromagnetic coupling mediated by Coπ non-covalent contacts, where π orbitals originate from the thiocyanato ligand, is reported for the first time.