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Abstract <p>New luminescent cluster complex (Bu<sub>4</sub>N)<sub>2</sub>[W<sub>6</sub>I<sub>8</sub>(N<sub>3</sub>C<sub>6</sub>H<sub>4</sub>)<sub>6</sub>] (<b>I</b>) is obtained by the reaction of (Bu<sub>4</sub>N)<sub>2</sub>[W<sub>6</sub>I<sub>8</sub>(OOCCH<sub>3</sub>)<sub>6</sub>] with 1-trimethylsilyl-1,2,3-benzotriazole (Me<sub>3</sub>Si-N<sub>3</sub>C<sub>6</sub>H<sub>4</sub>) is obtained. The crystal structure is determined for cocrystallizate <b>I</b> with 1,2,3-benzotriazole (Bu<sub>4</sub>N)<sub>2</sub>[W<sub>6</sub>I<sub>8</sub>(N<sub>3</sub>C<sub>6</sub>H<sub>4</sub>)<sub>6</sub>]· ·4(N<sub>3</sub>C<sub>6</sub>H<sub>5</sub>) (<b>I</b>·4BTA). According to single crystal X-ray diffraction data, tungsten atoms of the {W<sub>6</sub>I<sub>8</sub>}<sup>4+</sup> cluster core are monodentate coordinated by N1 atoms of 1,2,3-benzotriazolate ligands (average W–N distance 2.20&#xa0;Å). For the powder sample of <b>I</b> bright phosphorescence is revealed with the emission maximum at 640&#xa0;nm, φ&#xa0;=&#xa0;24%, τ&#xa0;=&#xa0;266&#xa0;µs (in the air atmosphere). Complex <b>I</b> is characterized by electrospray mass spectrometry, proton magnetic resonance, C, H, N elemental analysis, and IR spectroscopy.</p>

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1,2,3-Benzotriazolate Cluster Complex (Bu4N)2[W6I8(N3C6H4)6]

  • 期刊论文

  • 发表日期：

    2025年1月1日

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  • M. A. Mikhaylov,
  • A. S. Berezin,
  • T. S. Sukhikh,
  • D. G. Sheven’,
  • N. B. Kompankov,
  • M. N. Sokolov,
  • K. A. Tagiltsev

摘要

Abstract

New luminescent cluster complex (Bu4N)2[W6I8(N3C6H4)6] (I) is obtained by the reaction of (Bu4N)2[W6I8(OOCCH3)6] with 1-trimethylsilyl-1,2,3-benzotriazole (Me3Si-N3C6H4) is obtained. The crystal structure is determined for cocrystallizate I with 1,2,3-benzotriazole (Bu4N)2[W6I8(N3C6H4)6]· ·4(N3C6H5) (I·4BTA). According to single crystal X-ray diffraction data, tungsten atoms of the {W6I8}4+ cluster core are monodentate coordinated by N1 atoms of 1,2,3-benzotriazolate ligands (average W–N distance 2.20 Å). For the powder sample of I bright phosphorescence is revealed with the emission maximum at 640 nm, φ = 24%, τ = 266 µs (in the air atmosphere). Complex I is characterized by electrospray mass spectrometry, proton magnetic resonance, C, H, N elemental analysis, and IR spectroscopy.