Spectroscopy Letters ( IF 1.7 ) Pub Date : 2021-02-14 , DOI: 10.1080/00387010.2021.1881128 Aslı Çıkıt Şener 1 , Derya Topkaya 2 , Serap Alp 2 , Gülsiye Öztürk Ürüt 2
Abstract
Seven fluorescent thiophene-based oxazol-5-one derivatives were prepared via Erlenmeyer reaction of 2-thiophenecarboxaldehyde and 3-thiophenecarboxaldehyde with different aryl glycine intermediates. Their absorption and emission properties were investigated in solution environment and in the solid film matrix of polyvinylchloride. Moreover, the fluorescence sensing abilities to iron (III), cobalt (II), nickel (II), zinc (II) and copper (II) ions were examined in polyvinylchloride matrix. Thiophene-based oxazol-5-one derivatives revealed high sensitivity and selectivity toward iron (III). A good linearity with a correlation coefficient of 0.99 was observed in the concentration range of 1.0 × 10−7 to 1.0 × 10−3 M iron (III) for 2-phenyl-4-(2-thienylmethylene)oxazol-5-one, 2-(3-thienyl)-4-(2-thienylmethylene)oxazol-5-one and 2-(3-thienyl)-4-(3-thienylmethylene)oxazol-5-one.
中文翻译:
噻吩基恶唑-5-酮的离子传感性质
摘要
通过2-噻吩甲醛和3-噻吩甲醛与不同的芳基甘氨酸中间体的Erlenmeyer反应制得了七种基于荧光噻吩的恶唑-5-酮衍生物。在溶液环境和聚氯乙烯的固体膜基质中研究了它们的吸收和发射特性。此外,在聚氯乙烯基质中检测了对铁(III),钴(II),镍(II),锌(II)和铜(II)离子的荧光感测能力。噻吩基的恶唑-5-酮衍生物显示出对铁(III)的高敏感性和选择性。在1.0×10 -7至1.0×10 -3的浓度范围内,观察到良好的线性,相关系数为0.99 2-苯基-4-(2-噻吩基亚甲基)恶唑-5-酮,2-(3-噻吩基)-4-(2-噻吩基亚甲基)恶唑-5-酮和2-(3-噻吩基)的M铁(III) )-4-(3-噻吩基亚甲基)恶唑-5-酮。