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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >A remarkable effect of N,N-diethylamino functionality on the optoelectronic properties of a salicylimine-based probe for Al~(3+)?
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A remarkable effect of N,N-diethylamino functionality on the optoelectronic properties of a salicylimine-based probe for Al~(3+)?

机译：N，N-二乙基氨基官能团对基于水杨碱的Al〜（3+）探针的光电性能的显着影响。

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摘要

A new live-cell permeable, fluorescent probe comprised of a simple salicylimine-based Schiff base (SA1) has been developed for Al~(3+) with nano-molar sensitivity in aqueous media. SA1 was synthesized through a simple structural modification of a recently reported receptor SA2 by the incorporation of the N,Ndiethylamino (DEA) group as a fine controllable unit. This modification affects the performance of SA1 remarkably in terms of its sensitivity, water compatibility and efficiency as well as its mechanistic aspect. The presence of the DEA group in SA1 led to its dual channel emission due to the TICT state and at the same time its hydrophobic nature was also responsible for controlling the strong hydration of Al~(3+) ions in aqueous media which ultimately led to the high sensitivity of SA1 for Al~(3+). The structure of SA1 was confirmed by single crystal X-ray diffraction and its binding with Al~(3+) was studied in detail using UVvisible, fluorescence and ~1H NMR spectral studies along with mass determination. The effort of getting a single crystal of Al~(3+)-SA1 led to single crystals of Cl~?/NO_3~? complexes of protonated SA1 which were fully characterized by their XRD studies.
机译：已经开发了一种新的活细胞可渗透的荧光探针，该探针由简单的基于水杨酰亚胺的席夫碱（SA1）组成，用于Al〜（3+），在水性介质中具有纳摩尔浓度。 SA1是通过将N，Ndiethylethylamino（DEA）基团作为精细可控单元并入，对最近报道的受体SA2进行简单的结构修饰而合成的。该修饰在敏感性，水相容性和效率以及其机理方面显着影响SA1的性能。由于TICT状态，SA1中DEA基团的存在导致其双通道发射，同时其疏水性也负责控制Al〜（3+）离子在水性介质中的强水合作用，最终导致SA1对Al〜（3+）的高敏感性。 SA1的结构通过单晶X射线衍射确认，并通过紫外可见，荧光和〜1H NMR光谱研究以及质量测定详细研究了其与Al〜（3+）的结合。获得Al〜（3 +）-SA1单晶的努力导致了Cl〜？/ NO_3〜？的单晶。 X射线衍射研究充分表征了质子化SA1的复合物。

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