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Designing of emerald terbium (III) ions with β-ketocarboxylic acid and heterocyclic ancillary ligands for biological and optoelectronic applications
Luminescence ( IF 3.2 ) Pub Date : 2021-06-19 , DOI: 10.1002/bio.4106 Pooja Hooda 1 , Vinod Bala Taxak 1 , Rajesh Kumar Malik 1 , Monika Punia 1 , Pratibha Ahlawat 2 , Satyender Pal Khatkar 1 , Rajesh Kumar 2
Luminescence ( IF 3.2 ) Pub Date : 2021-06-19 , DOI: 10.1002/bio.4106 Pooja Hooda 1 , Vinod Bala Taxak 1 , Rajesh Kumar Malik 1 , Monika Punia 1 , Pratibha Ahlawat 2 , Satyender Pal Khatkar 1 , Rajesh Kumar 2
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A green and highly efficient grinding method was adopted to synthesize emerald terbium complexes with 1-cyclopropyl-6-fluro-4-oxo-7-piperazin-1-ylquinoline-3-carboxylic acid as the main organic ligand and 2,2′-bipyridyl, 1,10-phenanthroline, neocuproine, 5,6-dimethyl-1,10-phenanthroline and bathophenanthroline as ancillary ligands. Structural analysis of these complexes was executed via elemental, infrared and 1H-nuclear magnetic resonance analysis, which confirmed that the ligand coordinated to the metal ion through β-ketone and hydroxyl groups of carboxylic acid. Thermal stability of these complexes was investigated by study of thermogravimetric/derivative thermogravimetric analysis. Photoluminescence properties were investigated by observing emission spectra (400–700 nm), excitation spectra (250–500 nm) and decay time curves for display devices. The emission spectra revealed that an intense peak at 545 nm was observed due to 5D4→7F5 electronic transition, which is responsible for the emerald colour in synthesized complexes, under 353 nm ultraviolet light excitation. The energy band gap and refractive index were determined, which proclaimed the dormant applications of these complexes in semiconductors. Commission Internationale de l'éclairage colour coordinates confirmed that the emerald emission of these complexes lies in the green region. Furthermore, antioxidant, antimicrobial and antimalarial assays of these complexes were also investigated, which confirmed that these complexes are potent for antioxidant, antimicrobial and antimalarial activities.
中文翻译：
用于生物和光电应用的带有 β-酮羧酸和杂环辅助配体的祖母绿铽 (III) 离子的设计
采用绿色高效研磨法合成了以1-环丙基-6-氟-4-氧代-7-哌嗪-1-基喹啉-3-羧酸为主要有机配体和2,2'-的祖母绿铽配合物。联吡啶、1,10-菲咯啉、新铜碱、5,6-二甲基-1,10-菲咯啉和红菲咯啉作为辅助配体。这些配合物的结构分析是通过元素、红外和1H-核磁共振分析，证实配体通过β-酮和羧酸的羟基与金属离子配位。这些配合物的热稳定性通过研究热重/导数热重分析来研究。通过观察显示设备的发射光谱（400-700 nm）、激发光谱（250-500 nm）和衰减时间曲线来研究光致发光特性。发射光谱表明，由于5 D 4 → 7 F 5在 545 nm 处观察到一个强峰在 353 nm 紫外光激发下，电子跃迁是合成配合物中祖母绿颜色的原因。确定了能带隙和折射率，这宣告了这些配合物在半导体中的休眠应用。Commission Internationale de l'éclairage 颜色坐标确认这些复合物的祖母绿发射位于绿色区域。此外，还研究了这些复合物的抗氧化、抗微生物和抗疟试验，证实这些复合物具有有效的抗氧化、抗微生物和抗疟活性。
更新日期：2021-06-19
中文翻译：
用于生物和光电应用的带有 β-酮羧酸和杂环辅助配体的祖母绿铽 (III) 离子的设计
采用绿色高效研磨法合成了以1-环丙基-6-氟-4-氧代-7-哌嗪-1-基喹啉-3-羧酸为主要有机配体和2,2'-的祖母绿铽配合物。联吡啶、1,10-菲咯啉、新铜碱、5,6-二甲基-1,10-菲咯啉和红菲咯啉作为辅助配体。这些配合物的结构分析是通过元素、红外和1H-核磁共振分析，证实配体通过β-酮和羧酸的羟基与金属离子配位。这些配合物的热稳定性通过研究热重/导数热重分析来研究。通过观察显示设备的发射光谱（400-700 nm）、激发光谱（250-500 nm）和衰减时间曲线来研究光致发光特性。发射光谱表明，由于5 D 4 → 7 F 5在 545 nm 处观察到一个强峰在 353 nm 紫外光激发下，电子跃迁是合成配合物中祖母绿颜色的原因。确定了能带隙和折射率，这宣告了这些配合物在半导体中的休眠应用。Commission Internationale de l'éclairage 颜色坐标确认这些复合物的祖母绿发射位于绿色区域。此外，还研究了这些复合物的抗氧化、抗微生物和抗疟试验，证实这些复合物具有有效的抗氧化、抗微生物和抗疟活性。
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