A Solid Transformation into Carboxyl Dimers Based on a Robust Hydrogen‐Bonded Organic Framework for Propyne/Propylene Separation

Autor:	Shubo Geng, Wei Zhou, Zhenjie Zhang, Jianzhuang Jiang, Baoqiu Yu, Hailong Wang, Banglin Chen
Rok vydání:	2021
Předmět:	Hydrogen Hydrogen bond chemistry.chemical_element General Chemistry Crystal structure General Medicine Propyne Catalysis Crystallography chemistry.chemical_compound chemistry Selective adsorption Gas separation Isostructural Single crystal
Zdroj:	Angewandte Chemie. 133:26146-26152
ISSN:	1521-3757 0044-8249
Popis:	Self-assembly of N,N,N ' ,N '-tetrakis(4-carboxyphenyl)-1,4-phenylenediamine with the help of different solvents provides isostructural hydrogen-bonded organic frameworks (HOF-30). Single crystal X-ray diffraction (SCXRD) analysis reveals HOF-30 possesses 3D ten-fold interpenetrated dia nets connected by two kinds of hydrogen bonds, namely solvent-bridged carboxyl dimers and carboxyl···carboxyl dimers. Degassing treatment for HOF-30 yields HOF-30a still with 3D ten-fold interpenetrated dia nets but linked with sole carboxyl···carboxyl dimers. Reversible hydrogen-bond-to-hydrogen-bond transformation between solvent-bridged·carboxyl dimers in HOF-30 and carboxyl···carboxyl dimers in HOF-30a has been unveiled by single crystal and powder X-ray diffraction. In addition, HOF-30a enables the selective adsorption of propyne over propylene according to the single component sorption and breakthrough experiments. The preferred propyne location in HOF has also been identified by SCXRD test.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::935ea04601267e348a66991927389ad2 https://doi.org/10.1002/ange.202110057 Zobrazit plný text záznamu Plný text ve formátu PDF