Three-dimensional Ln(III)-Mn(II) metal organic frameworks constructed from Rod-shaped molecular building blocks: Syntheses, structures and magnetic properties

► Two three-dimension Ln(III)-Mn(II) hetrometallic metal organic frameworks. ► Rod-shaped molecular building block is composed of LnO9 polyhedra and MnO6 polyhedron in a corner-sharing fashion. ► The antiferromagnetic and ferromagnetic coupled interactions exist in compounds upon decreasing temperature. ► The thermal properties have been investigated.