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首页> 外文期刊>Japanese journal of applied physics >Synthesis and characterization of Cu(Ⅰ) isocyanide complexes exhibiting reversible luminescence
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Synthesis and characterization of Cu(Ⅰ) isocyanide complexes exhibiting reversible luminescence

机译：可逆发光的Cu（Ⅰ）异氰化物配合物的合成与表征

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摘要

Herein, we describe the synthesis of Cu(I) isocyanide complexes, namely, the [Cul(PDI)] (PDI = 1,4-phenylene diisocyanide) dimer and [Cu2I2(PPh3)(2)(PDI)(2)] (PPh3 = triphenylphosphine), which exhibit weak orange (quantum yield Phi = 1%) and intense pale blue (Phi = 13%) emissions in the solid state under UV irradiation, respectively. Upon grinding, the luminescence of the pul(PDI)] dimer does not change, whereas that of [Cu2I2(PPh3)(2)(PDI)(2)] changes to a weak olive (Phi = 4%) emission. Treatment of the ground [pu(2)I(2) (PPh3)(2)(PDI)(2)] with an organic solvent and subsequent drying restore its original pale blue emission, which is indicative of reversible luminescent mechanochromism. Moreover, both the [CuI(PDI)) dimer and pu(2)I(2)(Plph(3))(2)(PDI)(2)] exhibit thermochromism, i.e., their emissions change to a very intense green emission at 77K. In particular, time-dependent density functional theory calculations reveal that [Cu2I2(PPh3)(2)(PDI)(2)] could be assigned to luminescence induced by halide-to-ligand charge transfer. (C) 2018 The Japan Society of Applied Physics
机译：在这里，我们描述了Cu（I）异氰化物配合物的合成，即[Cul（PDI）]（PDI = 1,4-亚苯基二异氰酸酯）二聚体和[Cu2I2（PPh3）（2）（PDI）（2）] （PPh3 =三苯基膦），在紫外线照射下，固态时分别显示出弱橙色（量子产率Phi = 1％）和强烈的淡蓝色（Phi = 13％）发射。研磨后，pul（PDI）]二聚体的发光不变​​，而[Cu2I2（PPh3）（2）（PDI）（2）]的发光变为弱橄榄色（Phi = 4％）。用有机溶剂处理地面[pu（2）I（2）（PPh3）（2）（PDI）（2）]，随后干燥以恢复其原始的淡蓝色发光，这表明发光机理可逆。此外，[CuI（PDI））二聚体和pu（2）I（2）（Plph（3）（2）（PDI）（2））都显示热致变色，即它们的发射变为非常强烈的绿色发射在77K。特别地，随时间变化的密度泛函理论计算表明，[Cu2I2（PPh3）（2）（PDI）（2）]可以归因于卤化物到配体电荷转移所诱导的发光。 （C）2018日本应用物理学会

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  • 来源
    《Japanese journal of applied physics》 |2018年第8期|081601.1-081601.6|共6页
  • 作者

    Hayakawa Takuya; Nanzan Chika; Hashimoto Masashi; Teramae Hiroyuki; Sakata Tomomi;

  • 作者单位

    Josai Univ, Fac Sci, Dept Chem, Sakado, Saitama 3500295, Japan;

    Josai Univ, Fac Sci, Dept Chem, Sakado, Saitama 3500295, Japan;

    Josai Univ, Fac Sci, Dept Chem, Sakado, Saitama 3500295, Japan;

    Josai Univ, Fac Sci, Dept Chem, Sakado, Saitama 3500295, Japan;

    Josai Univ, Fac Sci, Dept Chem, Sakado, Saitama 3500295, Japan;

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