Double-step CO2 sorption and guest-induced single-crystal-to-single-crystal transformation in a flexible porous framework

作者：Wu, Wei-Ping; Li, Zhi-Sen; Liu, Bo; Liu, Ping; Xi, Zheng-Ping; Wang, Yao-Yu^*

来源：Dalton Transactions, 2015, 44(22): 10141-10145.

DOI：10.1039/c5dt00460h

• METAL-ORGANIC FRAMEWORK
• COORDINATION-POLYMER
• GAS-ADSORPTION
• CARBON-DIOXIDE
• 2D
• LIGAND
• MIL-53
• INTERPENETRATION
• MOFS
• CU

A new 2D highly flexible and breathing porous framework [CuL-(Me2NH)]center dot DMF center dot H2O (1) (H3L = 5-(4'-carboxylphenoxy)nicotinic acid) has been synthesized using a tritopic linker with a flexible joint. The desolvated framework, [CuL(Me2NH)] (1a), undergoes structural contraction, and exhibits selective and double-step hysteretic adsorption for CO2. Furthermore, on exposure to CH2Cl2 at room temperature, a unique single-crystal-to-single-crystal transformation occurred between 1 and [Cu2L2(Me2NH)(2)(H2O)(2)]center dot 5H(2)O (1b).

• 出版日期2015
• 单位四川轻化工大学; 西北大学