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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Functionalized BODIPY with various sensory units - a versatile colorimetric and luminescent probe for pH and ions
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Functionalized BODIPY with various sensory units - a versatile colorimetric and luminescent probe for pH and ions

机译：具有各种感官单元的功能化BODIPY-用于pH和离子的多功能比色和发光探针

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A series of BODIPY (4,4-difluoro-4-bora-3a,4a-diaza-5-indacene) derivatives containing ion- and pH-sensory units have been successfully designed and synthesized. One of the compounds was structurally characterized by X-ray crystallography. Owing to the presence of an ICT absorption band, one of the compounds was found to show pronounced solvatochromic behavior in different organic solvents. Their emission energies in various solvents show a linear dependence on the Lippert solvent parameter. The cation-binding properties of the complexes with different metal ions (alkali metal, alkaline earth metal and transition metal ions) have been studied using UV-vis and emission spectroscopies. A 1: 1 complexation to metal ions (Li~+, Na~+, Mg~(2+), Ba~(2+), Zn~(2+), Cd~(2+)) was found for the compound with one azacrown moiety in acetonitrile while another one with two azacrown moieties was shown to form 1 2 complexes with Zn~(2+) and Mg~(2+) cations. Their stability constants have been determined by both UV-vis and emission spectrophotometric methods. By introducing triarylborane moieties into the meso position and the 2-position of the BODIPY skeleton, different electronic absorption spectral changes together with an emission diminution were observed in response to fluoride ions. Ditopic binding study of 5, which was functionalized with both azacrown and triarylborane moieties, showed emission enhancement in the presence of Mg~(2+) and F. These findings suggest that these BODIPY derivatives are capable of serving as versatile colorimetric and luminescence probes for pH, cations and F
机译：已经成功设计并合成了一系列含有离子和pH敏感单元的BODIPY（4,4-二氟-4-硼3a，4a-二氮杂5-茚并四烯）衍生物。通过X射线晶体学对这些化合物之一进行结构表征。由于存在ICT吸收带，因此发现其中一种化合物在不同的有机溶剂中表现出明显的溶剂化行为。它们在各种溶剂中的发射能显示出对Lippert溶剂参数的线性依赖性。使用紫外可见光谱和发射光谱学研究了具有不同金属离子（碱金属，碱土金属和过渡金属离子）的配合物的阳离子结合性能。发现该化合物与金属离子（Li〜+，Na〜+，Mg〜（2 +），Ba〜（2 +），Zn〜（2 +），Cd〜（2+）形成1：1的络合物。在乙腈中，一个具有一个氮杂冠状部分的化合物，而另一个具有两个氮杂冠状部分的化合物，显示与Zn〜（2+）和Mg〜（2+）阳离子形成1 2个配合物。它们的稳定性常数已通过紫外可见和发射分光光度法确定。通过将三芳基硼烷部分引入BODIPY骨架的内消旋位置和2位，可以观察到不同的电子吸收光谱变化以及发射减少，这是对氟离子的响应。对5的双位结合研究（同时用氮杂冠和三芳基硼烷部分进行功能化）显示在Mg〜（2+）和F存在下发射增强。这些发现表明，这些BODIPY衍生物能够用作通用的比色和发光探针pH，阳离子和F

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