We investigated the fluorescence polarization properties of tetragonal crystal system MOF_TCS⊃RhB (metal-organic framework, MOF) and hexagonal crystal system MOF_HCS⊃RhB, where the RhB molecules were loaded into the crystals via the activated adsorption or in-situ method. Both MOFs used terephthalic acid and triethyl diamine as the organic ligands, and Zn²⁺ as the metal ion, but were synthesized at different temperatures. In the activated adsorption method, the isomerical MOF crystals were prepared via the solvothermal reaction, then the RhB molecules were loaded via the activated adsorption reaction. In the in-situ method, the RhB molecules were loaded simultaneously during the synthesis of MOF. Excrement results show that the polarization rates of MOF_TCS⊃RhBs are larger than those of MOF_HCS⊃RhBs. Also, the polarization rate of the in-situ synthesized MOF⊃RhB was larger than that of MOF⊃RhB prepared by the activated absorption method. In our results, the in-situ synthesized MOF_TCS⊃RhB showed a maximum polarization rate of 4.79.

我们研究了四方晶系MOF的荧光偏振特性_TCS ⊃RhB（金属-有机骨架，MOF）和六方晶系MOF _HCS ⊃RhB，其中罗丹明B分子装入被激活的吸附或原位方法的晶体。两种MOF均使用对苯二甲酸和三乙二胺作为有机配体，并使用Zn ²⁺作为金属离子，但在不同温度下合成。在活化吸附法中，通过溶剂热反应制备了异构MOF晶体，然后通过活化吸附反应负载了RhB分子。在原位方法中，RhB分子在MOF合成过程中同时加载。排泄结果表明MOF的极化率_TCS ⊃RhBs比MOF的大_HCS ⊃RhBs。另外，原位合成的MOF⊃RhB的极化率大于通过活化吸收法制备的MOF⊃RhB的极化率。在我们的研究结果，原位合成MOF _TCS ⊃RhB显示的4.79最大极化率。