A New 10-Connected Coordination Network with Pentanuclear Zinc Clusters as Secondary Building Units

Abstract

An unusual 3D 10-connected metal–organic framework [Zn5(μ3-OH)2(1,4-ndc)4(1,4-bix)2] (1, 1,4-ndc = 1,4-naphthalenedicarboxylic acid; 1,4-bix = 1,4-bis(imidazol-1-ylmethyl)benzene) has been hydrothermally synthesized and structurally characterized. Topological analysis indicates that 1 is a 3D 10-connected self-penetrating framework based on [Zn5(μ3-OH)2] pentanuclear zinc clusters as secondary building units with the short Schläfli symbol of 364345362. This represents highly connected a uninodal network topology presently known for self-penetrating systems. Moreover, the TGA and luminescence properties of 1 were investigated.