4,4′-二乙烯基-2,2′-联吡啶配体对双（4-乙基苯基乙炔基）铂（II）配合物AIE活性的调控及其在“开启”型Ag+发光探针开发中的应用

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Inorganica Chimica Acta Pub Date : 2025-04-15 DOI:10.1016/j.ica.2025.122719

Mengmeng Cai, Bolun Zhang, Jianjun Zhang, Jun Ni

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引用次数: 0

摘要

设计合成了以4,4′-二乙烯基-2,2′-联吡啶（DiVbpy）和4-乙基苯基乙炔为配体的Pt(DiVbpy)(C≡CC6H4Et-4)2]2}NO3(1)、{Ag[Pt(DiVbpy)(C≡CC6H4Et-4)2] NO3(3)三个Pt（II）基配合物Pt(DiVbpy)(C≡CC6H4Et-4)2]NO3(3)。配合物1在CH2Cl2溶液中由于1mlct和1llct的跃迁而发出橙色发光，并表现出弱的AIE活性。在CH2Cl2溶液中，3比1发出更强的发光，表现出更强的AIE活性。而与3组成相似的配合物2在CH2Cl2溶液中发光弱，缺乏AIE活性。通过对结构、发光性质和理论计算结果的系统研究，我们发现引入AgNO3来限制分子基团的自由旋转和控制相邻分子之间的距离可能是提高二亚胺Pt（II）双（σ-乙酰基）配合物aie活性的策略之一。此外，基于2的独特性质，设计并开发了一种用于检测Ag+的“开通”型发光探针。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Regulation of AIE activity of bis(4-ethylphenylethynyl)platinum(II) complex based on 4,4′-divinyl-2,2′-bipyridine ligand and its application in the development of “turn-on” type Ag+ luminescent probe

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Three Pt (II)-based complexes, Pt(DiVbpy)(C≡CC₆H₄Et-4)₂ (1), {Ag[Pt(DiVbpy)(C≡CC₆H₄Et-4)₂]₂}NO₃ (2) and Ag[Pt(DiVbpy)(C≡CC₆H₄Et-4)₂]NO₃ (3) based on 4,4′-divinyl-2,2′-bipyridine (DiVbpy) and 4-ethylphenylacetylene ligands were designed and synthesized. Complex 1 displays an orange luminescence in CH₂Cl₂ solution arising from the¹MLCT and¹LLCT transitions and shows a weak AIE activity. In CH₂Cl₂ solution, 3 emits a stronger luminescence and shows a superior AIE activity compared to 1. In contrast, complex 2, which has a similar composition to 3, exhibits weak luminescence in CH₂Cl₂ solution and lacks AIE activity. Through systematic research on the structure, luminescent properties, and results of theoretical calculations, we found that the introduction of AgNO₃ to restrict the free rotation of molecular groups and control the distance between adjacent molecules may be one of the strategies to promote the AIE-active of diimine Pt(II) bis(σ-acetylide) complex. In addition, based on the unique properties of 2, a “turn-on” type luminescent probe for detecting Ag⁺ was designed and developed.

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来源期刊

Inorganica Chimica Acta 化学-无机化学与核化学

CiteScore

6.00

自引率

3.60%

发文量

440

审稿时长

35 days

期刊介绍： Inorganica Chimica Acta is an established international forum for all aspects of advanced Inorganic Chemistry. Original papers of high scientific level and interest are published in the form of Articles and Reviews. Topics covered include: • chemistry of the main group elements and the d- and f-block metals, including the synthesis, characterization and reactivity of coordination, organometallic, biomimetic, supramolecular coordination compounds, including associated computational studies; • synthesis, physico-chemical properties, applications of molecule-based nano-scaled clusters and nanomaterials designed using the principles of coordination chemistry, as well as coordination polymers (CPs), metal-organic frameworks (MOFs), metal-organic polyhedra (MPOs); • reaction mechanisms and physico-chemical investigations computational studies of metalloenzymes and their models; • applications of inorganic compounds, metallodrugs and molecule-based materials. Papers composed primarily of structural reports will typically not be considered for publication.