title: Achieving a rare breathing behavior in a polycatenated 2D to 3D net through a pillar-ligand extension strategy.
abstract: Through a pillar-ligand extension strategy, a rare breathing behavior in polycatenated 2D→3D nets has been achieved. Three variants exhibit interesting sorption properties that range from non-breathing to breathing behaviors, which is influenced by the angles between the pillars and the single honeycomb layers. The increase in pillar length does not lead to an increase in polycatenation multiplicity, which is controlled by the length of intralayer tripodal carboxylate. It also does not induce obviously expanded interlayer separations but occupies much more the free voids, and as a consequence, a smaller pore volume is obtained. This suggests that in 2D→3D polycatenated bilayer metal-organic frameworks, the porosity is not always enhanced by increasing the length of the interlayer pillars with the intralayer linker remaining unchanged.
authors: State Key Laboratory of Heavy Oil Processing, China University of Petroleum, College of Science, China University of Petroleum, Qingdao Shandong 266580 (P.R. China); Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, No. 27, Shanda South Road, Jinan City, Shandong Province (P.R. China).
authors: Xiaoliang
authors: X
authors: Zhao
authors: Fuling
authors: F
authors: Liu
authors: Liangliang
authors: L
authors: Zhang
authors: Di
authors: D
authors: Sun
authors: Rongming
authors: R
authors: Wang
authors: Zhangfeng
authors: Z
authors: Ju
authors: Daqiang
authors: D
authors: Yuan
authors: Daofeng
authors: D
authors: Sun
keywords: hysteresis; metal-organic frameworks; polycatenation; soft porous materials