Metal-Dependent and Selective Crystallization of CAU-10 and MIL-53 Frameworks through Linker Nitration.

ABSTRACT: The reaction of the V-shaped linker molecule 5-hydroxyisophthalic acid (H₂ L⁰ ), with Al or Ga nitrate under almost identical reaction conditions leads to the nitration of the linker and subsequent formation of metal-organic frameworks (MOFs) with CAU-10 or MIL-53 type structure of composition [Al(OH)(L)], denoted as Al-CAU-10-L^{0, 2, 4, 6} or [Ga(OH)(L)], denoted as Ga-MIL-53-L² . The Al-MOF contains the original linker L⁰ as well as three different nitration products (L² , L⁴ and L^4/6 ), whereas the Ga-MOF mainly incorporates the linker L² . The compositions were deduced by ¹ H NMR spectroscopy and confirmed by Rietveld refinement. In situ and ex situ studies were carried out to fo

SUBMITTER: Rabe T 

PROVIDER: S-EPMC8252442 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature