co2 and co3 mixed cluster secondary building unit approach toward a three-dimensional metal-organic framework with permanent porosity

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ID: 222330
2018
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Abstract
Large and permanent porosity is the primary concern when designing metal-organic frameworks (MOFs) for specific applications, such as catalysis and drug delivery. In this article, we report a MOF Co11(BTB)6(NO3)4(DEF)2(H2O)14 (1, H3BTB = 1,3,5-tris(4-carboxyphenyl)benzene; DEF = N,N-diethylformamide) via a mixed cluster secondary building unit (SBU) approach. MOF 1 is sustained by a rare combination of a linear trinuclear Co3 and two types of dinuclear Co2 SBUs in a 1:2:2 ratio. These SBUs are bridged by BTB ligands to yield a three-dimensional (3D) non-interpenetrated MOF as a result of the less effective packing due to the geometrically contrasting SBUs. The guest-free framework of 1 has an estimated density of 0.469 g cm−3 and exhibits a potential solvent accessible void of 69.6% of the total cell volume. The activated sample of 1 exhibits an estimated Brunauer-Emmett-Teller (BET) surface area of 155 m2 g−1 and is capable of CO2 uptake of 58.61 cm3 g−1 (2.63 mmol g−1, 11.6 wt % at standard temperature and pressure) in a reversible manner at 195 K, showcasing its permanent porosity.
Reference Key
chao2018moleculesco2 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Meng-Yao Chao, Wen-Hua Zhang, Jian-Ping Lang
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Journal Journal of ethnopharmacology
Year 2018
DOI
10.3390/molecules23040755
URL
http://www.mdpi.com/1420-3049/23/4/755
Keywords
crystal structure metal-organic framework

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