酸ヒドラジド系ケモセンサーを用いた水媒体中Cu^2+の選択的検出:実験およびDFT/TDDFT研究
Joardar Gim1, Zannatul Kowser1, Dipa Debnath1
1Department of Chemistry, Jashore University of Science and Technology Jashore-7408 Bangladesh joardargim@gmail.com zannatulkowser_che@just.edu.bd debnathdipa018@gmail.com redikaprity@gmail.com tasnim.b920@gmail.com msttaherakhatun92@gmail.com saharakhatunmunni@gmail.com rashedkhan039@gmail.com riju3295@gmail.com.
RSC advances
|January 22, 2026
まとめ
新規シッフ塩基プローブN
科学分野:
- 分析化学
- 材料科学
背景:
- 金属イオンの選択的検出は、環境モニタリングおよび生物学的研究に不可欠である。
- 銅(II)イオン(Cu2+)は生物系で重要な役割を果たすが、高レベルでは毒性を示す可能性がある。
- Cu2+検出のための高感度かつ選択的なケモセンサーの開発は、活発な研究分野である。
研究 の 目的:
- 新規酸ヒドラジド系シッフ塩基、N'-(4-ヒドロキシベンジリデン)ピコリンヒドラジド(HP)の設計と合成。
- Cu2+イオンの選択的ケモセンサーとしてのHPの可能性の調査。
- HPプローブのセンシング性能、結合メカニズム、および実用的な適用性の評価。
主な方法:
- HPの一段階合成。
- FTIR、NMR(1H、13C)、HRMS、SCXRD、および元素分析を用いた構造特性評価。
- UV-Vis分光法、Job's plot解析、およびFESEMを用いた陽イオンセンシング研究。
- DFTおよびTD-DFTを含む計算分析。
主要な成果:
- HPは正常に合成され、特性評価された。
- HPは、検出限界8.94 µMで、MeOH/H2O中のCu2+の迅速、選択的、高感度検出を示した。
- Job's plotは、4.26 × 10^4 M^-1の会合定数を持つ1:1の結合化学量論を確認した。
- FESEMによる形態学的変化がCu2+配位時に観察された。
- DFT計算は、LEおよびICT特性を明らかにし、実験結果を支持した。
結論:
- 合成されたHPプローブは、Cu2+イオンの選択的かつ高感度な検出に有効である。
- このプローブは、実際の水サンプル中のCu2+検出に実用的な適用性を示す。
- HPは、金属イオンセンシングのための分析化学における有用なツールとして有望である。
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