Reversible Switching between Highly Porous and Nonporous Phases of an Interpenetrated Diamondoid Coordination Network That Exhibits Gate‐Opening at Methane Storage Pressures

Authors

Qing-Yuan Yang, University of Limerick
Prem Lama, University of Stellenbosch
Susan Sen, Kyoto University
Matteo Lusi, University of Limerick
Kai-Jie Chen, University of Limerick
Wen-Yang Gao, University of South Florida
Mohana Shivanna, University of Limerick
Tony Pham, University of South FloridaFollow
Shengqian Ma, University of South FloridaFollow
Brian Space, University of South FloridaFollow

Document Type

Article

Publication Date

5-2018

Keywords

flexible microporous materials, ligand contortion, methane storage, stepped adsorption isotherm

Digital Object Identifier (DOI)

https://doi.org/10.1002/anie.201800820

Abstract

Herein, we report that a new flexible coordination network, NiL₂ (L=4‐(4‐pyridyl)‐biphenyl‐4‐carboxylic acid), with diamondoid topology switches between non‐porous (closed) and several porous (open) phases at specific CO₂ and CH₄ pressures. These phases are manifested by multi‐step low‐pressure isotherms for CO₂ or a single‐step high‐pressure isotherm for CH₄. The potential methane working capacity of NiL₂ approaches that of compressed natural gas but at much lower pressures. The guest‐induced phase transitions of NiL₂ were studied by single‐crystal XRD, in situ variable pressure powder XRD, synchrotron powder XRD, pressure‐gradient differential scanning calorimetry (P‐DSC), and molecular modeling. The detailed structural information provides insight into the extreme flexibility of NiL₂. Specifically, the extended linker ligand, L, undergoes ligand contortion and interactions between interpenetrated networks or sorbate–sorbent interactions enable the observed switching.

Comments

Complete list of authors: Nobuhiko Hosono, Shinpei Kusaka, John J. Perry IV, Leonard J. Barbour, Susumu Kitagawa, Michael J. Zaworotko

Was this content written or created while at USF?

Yes

Citation / Publisher Attribution

Angewandte Chemie International Edition, v. 57, issue 20, p. 5684-5689

Scholar Commons Citation

Yang, Qing-Yuan; Lama, Prem; Sen, Susan; Lusi, Matteo; Chen, Kai-Jie; Gao, Wen-Yang; Shivanna, Mohana; Pham, Tony; Ma, Shengqian; and Space, Brian, "Reversible Switching between Highly Porous and Nonporous Phases of an Interpenetrated Diamondoid Coordination Network That Exhibits Gate‐Opening at Methane Storage Pressures" (2018). Chemistry Faculty Publications. 76.
https://digitalcommons.usf.edu/chm_facpub/76