Metal-organic framework assembled from T-shaped and octahedral nodes: a mixed-linker strategy to create a rare anatase TiO2 topology.

A novel porphyrin paddlewheel framework (PPF-25), assembled from a zinc paddlewheel cluster and mixed linkers (4,4'-bipyridyl; zinc 5,15-di(4-carboxyphenyl)-10,20-diphenylporphyrin), has been synthesized and structurally characterized. T-shaped organometallic nodes are generated, and the resulting structure is closely related to anatase, a polymorph of TiO(2).