Volume 55, Issue 52 pp. 16021-16025
Communication

Flexible, Luminescent Metal–Organic Frameworks Showing Synergistic Solid-Solution Effects on Porosity and Sensitivity

Si-Yang Liu

Si-Yang Liu

MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275 China

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Dr. Dong-Dong Zhou

Dr. Dong-Dong Zhou

MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275 China

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Dr. Chun-Ting He

Dr. Chun-Ting He

MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275 China

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Dr. Pei-Qin Liao

Dr. Pei-Qin Liao

MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275 China

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Dr. Xiao-Ning Cheng

Dr. Xiao-Ning Cheng

Instrumental Analysis and Research Center, Sun Yat-Sen University, Guangzhou, 510275 China

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Yan-Tong Xu

Yan-Tong Xu

MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275 China

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Jia-Wen Ye

Jia-Wen Ye

MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275 China

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Prof. Dr. Jie-Peng Zhang

Corresponding Author

Prof. Dr. Jie-Peng Zhang

MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275 China

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Prof. Dr. Xiao-Ming Chen

Prof. Dr. Xiao-Ming Chen

MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275 China

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First published: 28 November 2016
Citations: 63

Graphical Abstract

Beyond mixing: The proper combination of non-isostructural metal–organic frameworks in terms of solid solutions can drastically improve the porosity (150 %) and optical O2 sensitivity (410 times) compared with the original phases. An oxygen-sensing MOF (MAF-2) can undergo structure changes and property improvements when its molecular building blocks are mixed and solid solutions are formed.

Abstract

Mixing molecular building blocks in the solid solution manner is a valuable strategy to obtain structures and properties in between the isostructural parent metal–organic frameworks (MOFs). We report nonlinear/synergistic solid-solution effects using highly related yet non-isostructural, phosphorescent CuI triazolate frameworks as parent phases. Near the phase boundaries associated with conformational diversity and ligand heterogeneity, the porosity (+150 %) and optical O2 sensitivity (410 times, limit of detection 0.07 ppm) can be drastically improved from the best-performing parent MOFs and even exceeds the records hold by precious-metal complexes (3 ppm) and C70 (0.2 ppm).

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