Leubner, Sebastian; Zhao, Haishuang; Van Velthoven, Niels; Henrion, Mickael; Reinsch, Helge; De Vos, Dirk E.; Kolb, Ute; Stock, Norbert published the artcile< Expanding the Variety of Zirconium-based Inorganic Building Units for Metal-Organic Frameworks>, Electric Literature of 190788-60-4, the main research area is zirconium benzenedicarboxylate acetate MOF preparation stability arene borylation catalyst; crystal structure zirconium benzenedicarboxylate biphenyldicarboxylate acetate microporous MOF; Direct C−H borylation; Electron Diffraction; Green Chemistry; Metal-organic Frameworks; Zirconium.
Two new Zr-based metal-organic frameworks [Zr6O4(OH)4(OAc)6(BDC)3] (CAU-26) and [Zr5O4(OH)4(OAc)4(BDC)2] (CAU-27) are reported, which were synthesized from HOAc, a rarely used but green and sustainable solvent (BDC2-: 1,4-benzenedicarboxylate). Structure determination aided by automated electron diffraction tomog. revealed that CAU-26 [Zr6O4(OH)4(OAc)6(BDC)3] is composed of layers of known {Zr6O8} clusters interconnected by terephthalate ions. In contrast CAU-27 [Zr5O4(OH)4(OAc)4(BDC)2] exhibits a three-dimensional structure with a so far unknown type of 1-dimensional inorganic building unit (IBU), which can be rationalized as condensed polyhedron-sharing chains of {Zr6O8} clusters. CAU-26 occurs as an intermediate of the CAU-27 synthesis and can be isolated easily, when reaction temperature and time are decreased. The authors were also able to synthesize two isoreticular derivatives of CAU-27 with extended linker mols. by implementing 4,4′-biphenyldicarboxylic acid (H2BPDC) and 5,5′-dicarboxy-2,2′-bipyridine (H2BIPY). All materials show high thermal and chem. stability as well as permanent microporosity. The excellent stability of CAU-27-BIPY was exploited to synthesize an Ir-supported heterogeneous MOF-based catalyst for the direct C-H borylation of arenes.
Angewandte Chemie, International Edition published new progress about Aromatic hydrocarbons Role: RCT (Reactant), RACT (Reactant or Reagent). 190788-60-4 belongs to class ethers-buliding-blocks, and the molecular formula is C13H19BO3, Electric Literature of 190788-60-4.
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem