当前位置：
X-MOL 学术
›
New J. Chem.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Two 5-(thiophene-2-yl)oxazole derived “turn on” fluorescence chemosensors for detection of Ga3+ and practical applications
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2022-05-06 , DOI: 10.1039/d2nj01672a Yuanying Liu 1 , Haitao Wang 2 , Xiaochuan Guo 1 , Yujing Xing 1 , Kehui Wei 1 , Mingyi Kang 1 , Xiaofeng Yang 1 , Meishan Pei 1 , Guangyou Zhang 1
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2022-05-06 , DOI: 10.1039/d2nj01672a Yuanying Liu 1 , Haitao Wang 2 , Xiaochuan Guo 1 , Yujing Xing 1 , Kehui Wei 1 , Mingyi Kang 1 , Xiaofeng Yang 1 , Meishan Pei 1 , Guangyou Zhang 1
Affiliation
|
Two (5-(thiophene-2-yl)oxazole derived chemosensors, N′-(2-hydroxybenzylidene)-5-(thiophene-2-yl)oxazol-4-carbonylhydrazine (L1) and N′-(3-ethoxy-2-hydroxybenzylidene)-5-(thiophene-2-yl)oxazol-4-carbonylhydrazine (L2), were designed and synthesized via a fluorescence turn-on strategy to specifically recognize Ga3+. Both L1 and L2 showed highly sensitive and selective fluorescence responses toward Ga3+ in the DMSO/H2O buffer solution and exhibited more effective anti-interference performance over other coexisting metal ions including Al3+ and In3+. The limits of detection for Ga3+ were found to be 6.23 × 10−8 M and 1.15 × 10−8 M with L1 and L2, respectively. Job's plots and mass spectrometry (ESI-MS) suggested a 1 : 2 complexation ratio of sensors to Ga3+ with binding constants of 8.54 × 108 M2 for L1 and 1.06 × 108 M2 for L2. The proposed interaction mechanism was further supported by density functional theory. In addition, both sensors were applied to the detection of Ga3+ in environmental water samples.
中文翻译：
两种 5-(噻吩-2-基)恶唑衍生的“开启”荧光化学传感器，用于检测 Ga3+ 和实际应用
两个（5-（噻吩-2-基）恶唑衍生的化学传感器，N '-（2-羟基苯亚甲基）-5-（噻吩-2-基）恶唑-4-羰基肼（L1）和N '-（3-乙氧基- 2-羟基亚苄基)-5-(噻吩-2-基)恶唑-4-羰基肼( L2 )是通过荧光开启策略设计合成的特异性识别Ga 3+ .L1和L2均表现出高灵敏度和选择性在 DMSO/H 2 O 缓冲溶液中对 Ga 3+的荧光响应和表现出比其他共存金属离子（包括 Al 3+和 In 3+）更有效的抗干扰性能. 发现Ga 3+的检测限分别为6.23 × 10 -8 M 和1.15 × 10 -8 M，L1和L2。乔布图和质谱 (ESI-MS) 表明传感器与 Ga 3+的络合比为 1:2， L1的结合常数为 8.54 × 10 8 M 2，L2的结合常数为1.06 × 10 8 M 2。密度泛函理论进一步支持了所提出的相互作用机制。此外，两种传感器均应用于环境水样中Ga 3+的检测。
更新日期：2022-05-06
中文翻译：
两种 5-(噻吩-2-基)恶唑衍生的“开启”荧光化学传感器，用于检测 Ga3+ 和实际应用
两个（5-（噻吩-2-基）恶唑衍生的化学传感器，N '-（2-羟基苯亚甲基）-5-（噻吩-2-基）恶唑-4-羰基肼（L1）和N '-（3-乙氧基- 2-羟基亚苄基)-5-(噻吩-2-基)恶唑-4-羰基肼( L2 )是通过荧光开启策略设计合成的特异性识别Ga 3+ .L1和L2均表现出高灵敏度和选择性在 DMSO/H 2 O 缓冲溶液中对 Ga 3+的荧光响应和表现出比其他共存金属离子（包括 Al 3+和 In 3+）更有效的抗干扰性能. 发现Ga 3+的检测限分别为6.23 × 10 -8 M 和1.15 × 10 -8 M，L1和L2。乔布图和质谱 (ESI-MS) 表明传感器与 Ga 3+的络合比为 1:2， L1的结合常数为 8.54 × 10 8 M 2，L2的结合常数为1.06 × 10 8 M 2。密度泛函理论进一步支持了所提出的相互作用机制。此外，两种传感器均应用于环境水样中Ga 3+的检测。
京公网安备 11010802027423号