4.7 Article

A 3D Calcium Spirobifluorene Metal-Organic Framework: Single-Crystal-to-Single-Crystal Transformation and Toluene Detection by a Quartz Crystal Microbalance Sensor

Journal

INORGANIC CHEMISTRY
Volume 57, Issue 4, Pages 1689-1692

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.7b02671

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Funding

  1. National Natural Science Foundation of China [21201118, 21203117, 61371021]

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A new 3D metal organic framework Ca-SBF based on a zigzag-shaped tetranuclear calcium oxocluster and 9,9'-spirobi[9H-fluorene]-2,2',7,7'-tetracar-boxylic acid was obtained and exhibited flu topology. Ca-SBF underwent a single-crystal-to-single-crystal transformation to form Ca-SBF-1 with a slight structure shrinkage. Activated Ca-SBF showed permanent porosity and CO2 adsorption properties. A Ca-SBF-modified quartz crystal microbalance sensor demonstrated selective response to toluene vapor.

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