A Multifunctional Nanocage-based MOF with Tri- and Tetranuclear Zinc Cluster Secondary Building Units

Zhongyuan Zhou; Xiushuang Xing; Chongbin Tian; Wei Wei; Dejing Li; Falu Hu; Shaowu Du

doi:10.1038/s41598-018-21382-1

A Multifunctional Nanocage-based MOF with Tri- and Tetranuclear Zinc Cluster Secondary Building Units

Sci Rep. 2018 Feb 15;8(1):3117. doi: 10.1038/s41598-018-21382-1.

Authors

Zhongyuan Zhou¹, Xiushuang Xing^{1

2}, Chongbin Tian¹, Wei Wei^{1

2}, Dejing Li^{1

2}, Falu Hu^{1

2}, Shaowu Du³

Affiliations

¹ State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P.R. China.
² University of Chinese Academy of Sciences, Beijing, 100039, P.R. China.
³ State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P.R. China. swdu@fjirsm.ac.cn.

Abstract

A new Zn-cluster based MOF, [Zn₂₁(BTC)₁₁(μ₃-OH)₃(μ₄-O)₃(H₂O)₁₈]·21EtOH (1) (H₃BTC = 1,3,5-benzenetricarboxylic acid), with two different types of cluster nodes has been successfully synthesized from Zn²⁺ and H₃BTC under the solvothermal conditions. Single crystal X-ray diffraction studies reveal that 1 is a 3D trinodal (3,5,6)-c framework which features a large octahedral cage organized by nine Zn₃O and nine Zn₄O clusters SBUs and twenty-four triangular BTC^3- linkers. The Eu³⁺/Tb³⁺-incorporated derivative of 1 with 0.251% Eu³⁺ and 0.269% Tb³⁺ exhibits tunable luminescence from yellow to white and then to blue-green by changing the excitation wavelength from 308 to 315 nm. Metal ion exchange with Cu²⁺ affords isomorphous Cu-based MOF with enhanced N₂ and CO₂ adsorption capacity. In addition, 1 can act as a selective luminescent sensor for Cu²⁺ and Al³⁺ ions.

Publication types

Research Support, Non-U.S. Gov't