Bridging-arylene effects on spectroscopic and photophysical properties of arylborane–dipyrrinato zinc(ii) complexes

• Takaki, Koyo

• Sakuda, Eri

• Ito, Akitaka

• Horiuchi, Shinnosuke

• Arikawa, Yasuhiro

• Umakoshi, Keisuke

Abstract

Novel bis(dipyrrinato)zinc(ii) derivatives having 4-[bis(2,4,6-trimethylphenyl)boryl]phenyl (ZnBph) or 4-[bis(2,4,6-trimethylphenyl)boryl]-2,3,5,6-tetramethylphenyl groups (ZnBdu) at the 5-position of the dipyrrinato ligands were designed and synthesized.InZnBphwith the smaller dipyrrinate-arylene and arylene-dimesitylboryl dihedral angles, an intramolecular charge transfer arising from the presence of the vacant p orbital on the boron atom participates in the ππ* excited state in character in contrast to the pure ππ* excited state ofZnBdu. The synergistic ππ*/ILCT excited state was weakly fluorescent, and the fluorescence was enhanced upon binding of fluoride to the boron atom.

RSC Advances, 11(11), pp.6259-6267; 2021

Journal

• RSC Advances

  RSC Advances 11 (11), 6259-6267, 2021-02-03

  Royal Society of Chemistry

Keywords

• General Chemical Engineering
• General Chemistry

Details

• CRID: 1050568772215346816
• NII Article ID: 120006980723
• ISSN: 20462069
• DOI: 10.1039/d0ra09029h
• HANDLE: 10069/00040526
• Web Site: https://nagasaki-u.repo.nii.ac.jp/records/26328
• Web Site: http://pubs.rsc.org/en/content/articlepdf/2021/RA/D0RA09029H
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN