Hydrothermal synthesis and characterisation of alkaline-earth metal salts of benzene-1,3,5-tricarboxylic acid

Metal Carboxylates with Open Architectures

“…There are several reports of metal–organic frameworks constructed from multifunctional cyclic aliphatic and aromatic carboxylates;10b, 119–151 a list of such structures with brief structural descriptions is presented in Table 2. These structures clearly demonstrate the ability of rigid cyclic carboxylates to provide complex architectures from simple inorganic SBUs formed by metal–oxygen polyhedra (for example, Figure 28 shows the structure of chromium terephthalate.…”

Offene Metallcarboxylat‐Architekturen

“…Einige metallo‐organische Gerüste, die aus cyclischen aliphatischen und aromatischen Multicarboxylaten aufgebaut sind, wurden beschrieben 10b. 119–151 Bei diesen Verbindungen zeigt sich deutlich, wie aus starren cyclischen Carboxylaten und Metall‐Sauerstoff‐Polyedern als einfachen anorganischen sekundären Baugruppen komplexe Architekturen entstehen können. Die Strukturbeschreibungen dieser Verbindungen sind in Tabelle 2 aufgelistet.…”

An Alkaline Earth I3O0 Porous Coordination Polymer: [Ba2TMA(NO3)(DMF)]

“…Herein, we report the synthesis of [Ba 2 TMA(NO 3 ) (DMF)]⊃DMF ([ 1 (DMF)]⊃DMF), an alkaline earth I 3 O 0 PCP framework constructed with trimesic acid (H 3 TMA=1,3,5‐benzenetricarboxylic acid). We note that another polymorph, non‐porous [Ba(HTMA)(H 2 O) 2 ]⊃0.5 H 2 O has been previously reported 17. Framework 1 has three‐dimensional barium‐oxygen‐barium bonding with one‐dimensional channels decorated by protruding oxygen atoms.…”

“…Separate heating experiments with XRD under vacuum verify that the structure of 1 is still intact at 698 K, indicating that the high thermal stability of the compound is due to three‐dimensional Ba‐O‐Ba bonding. Even in air, the crystallinity of the framework is retained until 623 K. In comparison, [Ba(HTMA)(H 2 O) 2 ]⊃0.5 H 2 O, an I 1 O 2 framework with the same metal and ligand, is only thermally stable until 558 K in N 2 17. This result demonstrates the superior stability of a PCP with a three‐dimensionally connected inorganic framework.…”