Providing a clean environment free of pollutants, toxic substances, and hazardous materials is a pressing worldwide concern. Fluorescent dyes are a promising means to achieve this goal, and their application extends to medicine, academia, and industry. This work aims to provide basic data on a dye that can be used for the detection, quantification, and extraction of heavy metal ions based on its complexation with these environmental pollutants. A hydroxyphenylbenzotriazole derivative, 2-(2ʹ-hydroxyphenyl)-5-amino-benzotriazole (LH), was synthesized, characterized, and chelated with Sn²⁺, Hg²⁺, and Pb²⁺ metal ions. The synthesized LH dye and its metal complexes were characterized using a range of physicochemical and spectroscopic techniques. Binding the dye to the investigated metal ions resulted in colored complexes with 1:2 (metal: dye) stoichiometry and the general composition of [ML₂]·xH₂O. Larger spectral shifts were observed in the absorption and emission spectra of dye molecule after complexation with the Sn²⁺ ion compared with the other two metal ions.

提供无污染物，有毒物质和有害物质的清洁环境是世界范围内迫切关注的问题。荧光染料是实现该目标的一种有前途的手段，其应用范围扩展到医学，学术界和工业。这项工作旨在提供一种染料的基础数据，该染料可基于重金属离子与这些环境污染物的络合作用而用于重金属离子的检测，定量和提取。合成，表征并表征了羟基苯基苯并三唑衍生物2-（2′-羟基苯基）-5-氨基苯并三唑（LH），并与Sn 2 ⁺，Hg ²⁺和Pb ²⁺金属离子螯合。合成的LH使用多种物理化学和光谱技术对染料及其金属配合物进行表征。将染料结合到研究的金属离子上，形成具有1：2（金属：染料）化学计量比和[M L ₂ ]·xH ₂ O的一般组成的有色配合物。在染料的吸收和发射光谱中观察到较大的光谱位移与其他两种金属离子相比，与Sn ²⁺离子络合后的分子。