title: Bis-naphthalimides self-assembly organogel formation and application in detection of p-phenylenediamine.
abstract: Two new gelators containing bis-naphthalimides group were designed and synthesized. The gelator 1b could form gels in DMF and mixed solvent of DMSO/H2O (10/1, v/v). The self-assembly processes of 1b in two kinds of solvents were detailedly investigated by UV-vis, fluorescence, infrared spectroscopy, field emission scanning electron microscope (FE-SEM), X-ray diffraction and contact angle experiments. The experiment results showed the hydrogen bonding was the main force for the gel formation. The gel 1b formed in mixed solvent of DMSO/H2O (10/1, v/v) possessed of the ability of distinguishing of o-phenylenediamine, m-phenylenediamine and p-phenylenediamine. At the same time, the gelator 1b could selectively and sensitively detect p-phenylenediamine in solution with the detection limit of 8.961×10-8ML-1. The detection experiment was also confirmed by DFT theoretical calculations. This research would expand the supramolecular self-assembly materials application in sensor field and offer a new detection method for organic amines.
authors: College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang, Henan, 464000, PR China; State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China. Electronic address: caoxh@xynu.edu.cn.
authors: Xinhua
authors: X
authors: Cao
authors: College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang, Henan, 464000, PR China.
authors: Na
authors: N
authors: Zhao
authors: College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang, Henan, 464000, PR China.
authors: Aiping
authors: A
authors: Gao
authors: College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang, Henan, 464000, PR China.
authors: Haiting
authors: H
authors: Lv
authors: College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang, Henan, 464000, PR China.
authors: Yuling
authors: Y
authors: Jia
authors: School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, Jiangxi 341000, PR China.
authors: Renmiao
authors: R
authors: Wu
authors: School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, Jiangxi 341000, PR China. Electronic address: wyq@gnnu.edu.cn.
authors: Yongquan
authors: Y
authors: Wu
mesh_terms: D004121:Dimethyl Sulfoxide / Q000737:chemistry; D004126:Dimethylformamide / Q000737:chemistry; D005782:Gels / Q000737:chemistry*; D053644:Naphthalimides / Q000737:chemistry*; D010655:Phenylenediamines / Q000032:analysis* / Q000737:chemistry; D045483:Rivers / Q000737:chemistry; D012996:Solutions; D012997:Solvents / Q000737:chemistry; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D014867:Water / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis; D014961:X-Ray Diffraction
chemical_list: D005782:Gels; D053644:Naphthalimides; D010655:Phenylenediamines; D012996:Solutions; D012997:Solvents; D014874:Water Pollutants, Chemical; D014867:Water; D004126:Dimethylformamide; C029728:4-phenylenediamine; D004121:Dimethyl Sulfoxide
keywords: Naphthalimide; Organic amines; Organogel; Self-assembly; Supramolecular chemistry