Owing to their easy approachability and high degree of structural and functional diversity, many multicomponent reactions such as 1,3-dipolar cycloaddition have been a rich source of conjugated π-systems, functionalised chromophores and active molecules. Despite their high potential for investigation and practical benefits, few products have thus far been scrutinized for their metal sensing abilities. In the present study, indolin-2-one chalcones bearing siloxy molecular systems were synthesized by a [2+3] cycloaddition-based reaction sequence. A designed chemosensor exhibited an optical (absorption spectra) response toward Cu²⁺ ions in an acetonitrile solution. Different aspects of the sensing phenomena such as selectivity and association constants were studied in detail using UV-vis spectroscopy. The calibration plot was linear (R² = 0.9966) over a large range of Cu²⁺ ion concentrations (10 μM). This novel effort has initiated a well-organized method for the efficient improvement of cation sensors with triazole for detecting heavy metal pollutants in environmental and healthcare fields on a large scale.

中文翻译：

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查耳酮支架作为吲哚-2-酮官能化甲硅烷氧基骨架的光功能杂化材料，用于Cu 2 ⁺ †的光学传感

由于它们的易接近性以及高度的结构和功能多样性，许多多组分反应（例如1,3-偶极环加成）已成为共轭π系统，官能化发色团和活性分子的丰富来源。尽管具有很高的研究潜力和实用价值，但迄今为止，几乎没有产品因其金属感测能力而受到审查。在本研究中，通过基于[2 + 3]环加成的反应序列合成了带有甲硅烷氧基分子系统的吲哚-2-酮查耳酮。设计的化学传感器表现出对Cu ²⁺的光学（吸收光谱）响应乙腈溶液中的离子。使用紫外可见光谱对感测现象的不同方面（如选择性和缔合常数）进行了详细研究。在大范围的Cu ²⁺离子浓度（10μM）范围内，校准曲线是线性的（R ² = 0.9966 ）。这项新颖的工作开创了一种组织良好的方法，用于有效改善三唑阳离子传感器的效率，从而可大规模检测环境和医疗保健领域中的重金属污染物。