Semiconductive microporous hydrogen-bonded organophosphonic acid frameworks.

ABSTRACT: Herein, we report a semiconductive, proton-conductive, microporous hydrogen-bonded organic framework (HOF) derived from phenylphosphonic acid and 5,10,15,20-tetrakis[p-phenylphosphonic acid] porphyrin (GTUB5). The structure of GTUB5 was characterized using single crystal X-ray diffraction. A narrow band gap of 1.56 eV was extracted from a UV-Vis spectrum of pure GTUB5 crystals, in excellent agreement with the 1.65 eV band gap obtained from DFT calculations. The same band gap was also measured for GTUB5 in DMSO. The proton conductivity of GTUB5 was measured to be 3.00 × 10^-6 S cm^-1 at 75 °C and 75% relative humidity. The surface area was estimated to be 422 m² g^-1 from grand canonical Monte Carlo simulations. XRD showed that GTUB5 is thermally sta

SUBMITTER: Tholen P 

PROVIDER: S-EPMC7311548 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature