SUMOF-5: a mesoporous metal-organic framework with the tbo topology built from the dicopper paddle-wheel cluster and a new tritopic linker

Abstract

Abstract. A mesoporous metal-organic framework Cu 3 (PTB) 2 (H 2 O) 3 Á guest (denoted as SUMOF-5) has been synthesized using a new tritopic linker pyridine-2,4,6-tribenzoic acid (H 3 PTB). SUMOF-5 is cubic with the space group Fm 3 3m and a ¼ 47.272(3) Å . The framework is built of the dicopper paddle-wheel secondary building unit (SBU) [Cu 2 (OOC) 4 (H 2 O) 2 ] and contains two different cavities of 1.22 and 2.33 nm in diameter, respectively. The framework topology follows the (3,4)-connected tbo net, and can be regarded as an extended version of Cu 3 (BTC) 2 (H 2 O) 3 Á guest (HKUST-1, BTC ¼ benzene tricarboxylate). The structure of SUMOF-5 is compared to other MOFs built from dicopper paddle-wheels and tritopic linkers. SUMOF-5 has permanent porosity with a Langmuir surface area of 1733 m 2 /g and is stable in various organic solvents, which makes this material potentially useful as a crystalline carrier for loading molecular catalysts or drugs.

Optimized synthesis of nano-scale high quality HKUST-1 under mild conditions and its application in CO2 capture

“…The surface area (Brunauer-Emmett-Teller, BET) and pore size of the HKUST-1 were measured using a Micromeritics Tristar 3020 following the method described elsewhere 23 . Thermal decomposition behavior was studied using a thermogravimetric analyzer (TGA, NETZSCH STA49 F3),which involved the heating of the sample from 35 to 900 °C at a heating rate of 10 °C /min under N2 atmosphere 24 . The pH value of the solution was measured by using a METTLER TOLEDO pH analyzer (FiveEasy Plus-FE28).…”

A Major Advance in Characterizing Nanoporous Solids Using a Complementary Triad of Existing Techniques

“…But what adds special interest to the paper by Garcia-Martinez, Zou, Thommes et al [1] is that there is a vast and increasing number of inorganic, organic, and metal-organic solids and covalent organic frameworks that are potentially (and in many cases in actuality) capable of being used as adsorbents, sensors, catalysts, proton conductors and for gas storage and purification, as reported by Furukawa et al, [7] Mitchell et al, [8] Cooper, [9] Jones et al, [10] and Thomas and Thomas, for example. [11] With the recent advances in preparing mesoporous metal-organic frameworks (MOFs) containing large cavities (such as the 23.3 pores in SUMOF-5 [12] ) and the development of many new catalysts consisting of multifunctionalized MOFs, the triad of techniques deployed by Garcia-Martinez, Zou, Thommes et al [1] should prove particularly useful. The electron-beam stability of such nanoporous solids that are rich in organic moieties sometimes makes it difficult-because of electron-beam damage [4,13] -to record tilt series of micrographs required for RED and ET (recent advances in these techniques, such as strategies to reduce electron-beam exposure,…”

Series of Highly Stable Isoreticular Lanthanide Metal–Organic Frameworks with Expanding Pore Size and Tunable Luminescent Properties

“…We have been interested in synthesizing isoreticular MOFs using tritopic linkers and prepared a novel SUMOF-5 built from dicopper paddle-wheel clusters and pyridine-2,4,6-tribenzoate (PTB) 17 which is isoreticular to HKUST-1. 14 However, similar to most isoreticular MOFs, SUMOF-5 was not thermally and chemically stable.…”