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

Xueting Fang; Luyu Wang; Xiang He; Jiaqiang Xu; Zhiming Duan

doi:10.1021/acs.inorgchem.7b02671

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

Inorg Chem. 2018 Feb 19;57(4):1689-1692. doi: 10.1021/acs.inorgchem.7b02671. Epub 2018 Feb 2.

Authors

Xueting Fang¹, Luyu Wang¹, Xiang He¹, Jiaqiang Xu¹, Zhiming Duan¹

Affiliation

¹ Department of Chemistry, Center for Supramolecular Materials and Catalysis, College of Sciences, Shanghai University , Shanghai 200444, P. R. China.

PMID: 29393640
DOI: 10.1021/acs.inorgchem.7b02671

Abstract

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'-tetracarboxylic 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.