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Fluorescent Dodecapus in 3D Framework

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posted on 03.09.2014, 00:00 authored by Hongming He, Fuxing Sun, Jiangtao Jia, Zheng Bian, Nian Zhao, Xuepeng Qiu, Lianxun Gao, Guangshan Zhu
A dendritic aromatic 12-carboxyl ligand (H12TDDPB) is assembled with Zn­(II) ion. The TDDPB dimer coordinated with 12 Zn­(II) ions, regarded as a dodecapus, is stabilized by metal coordination and π–π stacking. The dodecapus-based framework presents a new type of topology (hhm) with the point symbol of (6·8·10)3(63·8·10·12)3(63)7. The resulting material emits strong blue luminescence in DMF, while the maximum emission of free ligand H12TDDPB is in the ultraviolet region.