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. 2020 Dec 7;11:6259. doi: 10.1038/s41467-020-20101-7

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — a, b The local surface electrostatic potential of the 2D network in (a) ZUL-220 and (b) ZUL-200 mapped onto the 0.001 a.u. density isosurface with a scale spanning −0.03 a.u. (blue) through 0 (white) to 0.03 a.u. (red). c The C₂H₂ adsorption isotherms at 298 K for ZUL-100, ZUL-200, ZUL-210, and ZUL-220. d Comparison of C₂H₂ uptake (0–0.05 bar) among representative MOFs at 298 K. e Comparison of C₂H₂ uptake (0.01 bar, 298 K) among representative MOFs.