Synthesis, thermal, solution and solid-state emission properties of 1,1-difluoro-3,6-diaryl-1H-1λ4,8λ4-[1,3,4]oxadiazolo[3,2-c][1,3,5,2]oxadiazaborinines
摘要:
for 24 h, and the structural characterization of compounds 6 was performed by multinuclear NMR, IR, SC-XRD, elemental analyses, and HRMS techniques. The TGA experiments showed that compounds 6 presented good thermal stability up to approximately 200 °C. The optical and electrochemical properties of derivatives by UV–Vis, fluorescence emission (solution and solidstate), TD-DFT calculations, and redox
oxadiazole derivative 2 was prepared by condensation reaction through cyclization of semicarbazone in the presence of bromine; the structural confirmation was supported by 1H and 13C nuclearmagneticresonance (NMR) spectroscopy, Fourier transform-infrared spectroscopy, and liquid chromatography-mass spectrometry. Its sensing ability towards Ni2+ ion was examined showing a binding constant of 1.04 × 105
溴存在下缩合缩合氨基脲,制备恶二唑衍生物2;结构确认得到了1 H 和13 C 核磁共振 (NMR) 光谱、傅里叶变换-红外光谱和液相色谱-质谱的支持。与其他合适的金属阳离子(Ca 2+、Co 2+ 、 Cr 3+ 、 Ag +、Pb 2+、Fe 3+ 、 Mg 2+和 K +) 使用紫外-可见 (UV-vis) 和荧光光谱研究。Ni 2+离子的最低浓度和检测限为9.4 μM。工作图给出恶二唑衍生物 2 与 Ni 2+离子的结合化学计量比为 2:1。此外,恶二唑衍生物 2 与小牛胸腺 DNA 的嵌入结合模式得到了紫外-可见 (UV-vis) 和荧光、粘度、循环伏安法、时间分辨荧光和圆二色性测量的支持。分子对接结果给出恶二唑衍生物2的结合评分为-6.5 kcal/mol,这进一步证实了插层相互作用。此外,恶二唑衍生物 2 的抗真菌活性还针对几种真菌菌株进行了筛选(C. albicans、C. glabrata和C
Synthesis, thermal, solution and solid-state emission properties of 1,1-difluoro-3,6-diaryl-1H-1λ4,8λ4-[1,3,4]oxadiazolo[3,2-c][1,3,5,2]oxadiazaborinines
作者:Carlos C. Diniz、Yuri G. Kappenberg、Jean C.B. Vieira、Bianca Dozza、Marcos A.P. Martins、Nilo Zanatta、Clarissa P. Frizzo、Bernardo A. Iglesias、Helio G. Bonacorso
DOI:10.1016/j.dyepig.2022.110568
日期:2022.10
for 24 h, and the structural characterization of compounds 6 was performed by multinuclear NMR, IR, SC-XRD, elemental analyses, and HRMS techniques. The TGA experiments showed that compounds 6 presented good thermal stability up to approximately 200 °C. The optical and electrochemical properties of derivatives by UV–Vis, fluorescence emission (solution and solidstate), TD-DFT calculations, and redox