Synthesis and Structure Characterization of Copper Terephthalate Metal–Organic Frameworks

Abstract

In this paper, we report on a high‐throughput (gram quantities) solvothermal method for the synthesis of copper terephthalate metal–organic frameworks in dmf. While the structure of MOF‐2 and some of the associated polymorphs are well known, we know of no equivalent structural studies for the isostructural copper terephthalate (Cu–tpa). The material we have made crystallizes in the C2/m space group. Cu–tpa also exhibits reversible solvent‐exchange properties. These properties make this material useful for potential applications in gas storage and catalysis applications. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)

Postsynthetic modification of copper terephthalate metal-organic frameworks and their new application in preparation of samples containing heavy metal ions

“…The crystals were tetrahedron, which was consistent with the literature [22], and had an average size of 5 mm with a smooth surface as shown in Fig. 1a.…”

“…[Cu 4 O(BDC)] n was prepared according to the reported method with some modification [22]. 0.4832 g of copper nitrate trihydrate and 0.3324 g of terephthalic acid were dissolved in 40 mL of DMF.…”

Ammonia assisted formation of tubular MOP-18 crystals

“…The bands at 1634 and 1589 cm -1 (#) can be assigned to the asymmetric O-C-O stretching vibrations of the carboxylate groups (COO), while the bands at 1457 and 1382 cm -1 are attributed to their symmetric stretching vibrations. 26,27 This unambiguously indicates the coordination between COO group and Cu 2+ . In addition, there are no trace peaks that can be assigned to ammonia related, 28 revealing that free ammonia is not involved in the tubular MOP-18 molecular structure.…”

Comparative studies on Ag3PO4/BiPO4–metal-organic framework–graphene-based nanocomposites for photocatalysis application

“…The improved photocatalytic activity is governed by three crucial factors: (a) increased adsorption of pollutants, (b) enhanced light absorption and (c) effective charge transfer and separation [26]. The mentioned factors depend on the structure and physical properties of photocatalysts such as band gap, specific surface area and crystal size.…”

“…Copper terephthalate (Cu(tpa)) crystal structure was synthesized via solvothermal method according to the previous report [26]. Briefly, copper nitrate trihydrate (1.053 g) and tpaH (0.724 g) were dissolved in DMF (50 mL) under vigorous stirring.…”