Abstract: | The title compound, Mn7(C2H2N3)8(C2H3O2)4(OH)2]n, is composed of centrosymmetric heptanuclear building units with the central Mn atom on an inversion center. In the building block, three MnII ions are held together by one μ3‐hydroxide group, two μ2‐triazolate (trz) ligands and two μ2‐acetate groups, forming an Mn3 cluster. Two Mn3 clusters are bridged by an Mn atom via two μ2‐trz ligands and two μ2‐O atoms from two acetate ions to construct a heptanuclear building block. The heptanuclear building units, lying parallel to each other along the b direction, form one‐dimensional ladder‐like chains and are further interlinked, resulting in a three‐dimensional framework through Mn—Ntrz bonds. |