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

An unusual 3D 10-connected metal-organic framework [Zn-5(mu(3)-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 [Zn-5(mu(3)-OH)(2)] pentanuclear zinc clusters as secondary building units with the short Schlafli symbol of 3(6)4(34)5(3)6(2). This represents highly connected a uninodal network topology presently known for self-penetrating systems. Moreover, the TGA and luminescence properties of 1 were investigated.