13 C NMR,MS和元素分析。所有6-芳基苯并咪唑并(1,2-c)喹唑啉类对三种革兰氏阳性菌(金黄色葡萄球菌,枯草芽孢杆菌,化脓性链球菌),三种革兰氏阴性菌(鼠伤寒沙门氏菌,大肠杆菌,K。评估了肺炎)细菌和三种真菌菌株(黑曲霉,白色念珠菌,绿色拟杆菌)。在测试的化合物中,13、19和20对测试生物显示出最有效的抑制作用。
13 C NMR,MS和元素分析。所有6-芳基苯并咪唑并(1,2-c)喹唑啉类对三种革兰氏阳性菌(金黄色葡萄球菌,枯草芽孢杆菌,化脓性链球菌),三种革兰氏阴性菌(鼠伤寒沙门氏菌,大肠杆菌,K。评估了肺炎)细菌和三种真菌菌株(黑曲霉,白色念珠菌,绿色拟杆菌)。在测试的化合物中,13、19和20对测试生物显示出最有效的抑制作用。
Benzimidazole-based imine-linked chemosensor: chromogenic sensor for Mg2+ and fluorescent sensor for Cr3+
作者:Preeti Saluja、Hemant Sharma、Navneet Kaur、Narinder Singh、Doo Ok Jang
DOI:10.1016/j.tet.2012.01.047
日期:2012.3
We synthesized an imine-linked, benzimidazole-based chemosensor that can be used for chromogenic recognition of Mg2+ and fluorescent recognition of Cr3+. The chemosensor shows sensitive, selective, and ratiometric recognition of Cr3+ through concurrent quenching at one wavelength and enhancement of fluorescence intensity at another wavelength. It can also be used to detect Mg2+ via UV-vis absorption spectroscopy. DFT calculations support these phenomena. The sensor can be used to strain microbe cells without breakage. (C) 2012 Elsevier Ltd. All rights reserved.