Scholarlink

Abstract <p>Complexes of trivalent lanthanides La (<b>1</b>), Sm (<b>2</b>), Er (<b>3</b>), Yb (<b>4</b>) are prepared by the reaction of Cp<sub>3</sub>Ln with 1,8-naphthalenediboronic acid anhydride. The structures and photoluminescent properties of obtained compounds are described. The tetranuclear structure of the [Sm<sub>4</sub>Cp<sub>2</sub>L<sub>2</sub>(μ-O)<sub>2</sub>(THF)<sub>4</sub>] complex is determined by XRD (L is the product of self-condensation of three 1,8-naphthalenediboronic anhydride molecules). According to the elemental analysis, IR spectroscopy, and time-of-flight MALDI mass spectrometry data, all the prepared compounds have a similar composition. At room temperature, all of these complexes exhibit ligand-centered photoluminescence (PL). The PL spectra of Sm, Er, and Yb complexes show narrow bands of metal-centered emission of the corresponding ions in visible and near-IR ranges. The lanthanum complex exhibits phosphorescence at 77&#xa0;K with an excited state lifetime of 6.2&#xa0;ms.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Synthesis, Structure, and Luminescent Properties of Lanthanide Complexes with 1,8-Naphthalenediboronic Acid Anhydride

  • 期刊论文

  • 发表日期：

    2026年3月1日

查看全文
  • T. V. Balashova,
  • S. K. Polyakova,
  • V. A. Ilichev,
  • T. S. Sukhikh,
  • I. D. Grishin,
  • M. N. Bochkarev

摘要

Abstract

Complexes of trivalent lanthanides La (1), Sm (2), Er (3), Yb (4) are prepared by the reaction of Cp3Ln with 1,8-naphthalenediboronic acid anhydride. The structures and photoluminescent properties of obtained compounds are described. The tetranuclear structure of the [Sm4Cp2L2(μ-O)2(THF)4] complex is determined by XRD (L is the product of self-condensation of three 1,8-naphthalenediboronic anhydride molecules). According to the elemental analysis, IR spectroscopy, and time-of-flight MALDI mass spectrometry data, all the prepared compounds have a similar composition. At room temperature, all of these complexes exhibit ligand-centered photoluminescence (PL). The PL spectra of Sm, Er, and Yb complexes show narrow bands of metal-centered emission of the corresponding ions in visible and near-IR ranges. The lanthanum complex exhibits phosphorescence at 77 K with an excited state lifetime of 6.2 ms.