A Two-Fold Interpenetrated Coordination Framework with a Rare (3,6)-Connected loh1 Topology: Magnetic Properties and Photocatalytic Behavior

A new manganese(II) coordination polymer, [Mn 2 ( L1 ) 4/3 ( L2 ) 2 ] n ( 1 ) ( L1 = 4′-(4-pyridyl)-4,2′:6′,4″-terpyridine, H 2 L2 = (4-phenyl)-2,6-bis(4-carboxyphenyl)pyridine), has been prepared and structurally characterized. Complex 1 is a 2-fold interpenetrated three-dimensional framework, which to our knowledge represents the first interpenetration example of coordination framework with unique (3,6)-connected loh1 topology. Furthermore, the magnetic properties and photocatalytic activity have been investigated. As a result, complex 1 displays a weak antiferromagnetic interaction among the Mn(II) centers and good photocatalytic activity for the degradation of methyl orange solution under ultraviolet light irradiation.