(4NPEA)2PbI4 (4NPEA = 4-Nitrophenylethylammonium): Structural, NMR, and Optical Properties of a 3 × 3 Corrugated 2D Hybrid Perovskite

J Am Chem Soc. 2019 Mar 20;141(11):4521-4525. doi: 10.1021/jacs.8b13207. Epub 2019 Mar 8.

Abstract

(4NPEA)2PbI4 (4NPEA = 4-nitrophenylethylammonium) is the first 3 × 3 corrugated 2D organic-Pb/I perovskite. The nitro groups are involved in cation-cation and cation-iodide interactions. The structure contains both highly distorted and near-ideal PbI6 octahedra, consistent with the observation of two 207Pb NMR resonances, while the optical properties resemble those of other 2D perovskites with distorted PbI6 octahedra.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Ammonium Compounds / chemistry*
  • Calcium Compounds / chemistry*
  • Magnetic Resonance Spectroscopy
  • Models, Molecular
  • Molecular Conformation
  • Optical Phenomena*
  • Oxides / chemistry*
  • Titanium / chemistry*

Substances

  • Ammonium Compounds
  • Calcium Compounds
  • Oxides
  • perovskite
  • Titanium