Photocatalytic and Ferric Ion Sensing Properties of a New Three-Dimensional Metal-Organic Framework Based on Cuboctahedral Secondary Building Units.

A new three-dimensional microporous metal-organic framework based on Zn(II) clusters with the formula {[Zn(NDC)(μ-OH)]·7DMF} () (HNDC = 1,4-naphthalenedicarboxylic acid) had been synthesized and characterized. The MOF displays an uncommon bsn topology, which is based on a unique heptanuclear Zn(OH)(CO) cluster as a secondary building unit. The MOF had been employed as a photocatalyst for the photodegradation of model organic dyes rhodamine B and methyl violet in light. The results of photocatalytic experiments showed that can successfully be employed as the photocatalyst for the benign decomposition of these dyes. A mechanism for the photcatalysis exhibited by had been proposed using the results of density of states (DOS) and partial DOS calculations. The fluorescence properties of the MOF have been investigated, which revealed that could be exploited as the luminescent sensor to recognize Fe ions with perceptible quenching ( = 6.55 × 10 M-) and a limit of detection of 1.16 ppm.