Synthesis and optical properties of antimony(V) complexes of a trianionic N2O2-type tetradentate dipyrrin ligand

Tomohiro Agou; Shunsuke Kuroiwa; Hiroki Fukumoto; Tatsuya Nabeshima

doi:10.1039/d4cc00630e

Synthesis and optical properties of antimony(V) complexes of a trianionic N₂O₂-type tetradentate dipyrrin ligand

Chem Commun (Camb). 2024 Apr 23;60(34):4557-4560. doi: 10.1039/d4cc00630e.

Authors

Tomohiro Agou¹, Shunsuke Kuroiwa², Hiroki Fukumoto², Tatsuya Nabeshima³

Affiliations

¹ Department of Material Science, Graduate School of Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan. agou@sci.u-hyogo.ac.jp.
² Department of Quantum Beam Science, Graduate School of Science and Engineering, Ibaraki University, 4-12-1 Naka-narusawa, Hitachi, Ibaraki 316-8511, Japan. hiroki.fukumoto.chem@vc.ibaraki.ac.jp.
³ Institute of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan. nabesima@chem.tsukuba.ac.jp.

PMID: 38572576
DOI: 10.1039/d4cc00630e

Abstract

LSbCl2, an air- and moisture-stable antimony(V)-dipyrrin complex at room temperature, was obtained by treating an excess amount (20 eq.) of SbCl₃ with a trianionic N₂O₂-type tetradentate dipyrrin ligand (L) under visible-light irradiation and O₂ atmosphere. The Cl ligands in LSbCl2 were replaced by OH ligands via hydrolysis, yielding LSb(OH)2. Further, the molecular structures and optical properties of the Sb(V)-dippyrin complexes were investigated. While LSbCl2 was non-fluorescent, LSb(OH)2 exhibited an intense red fluorescence with a photoluminescence quantum yield of 68%.