Synthesis, Characterization, and Crystal Structures of Imides Condensed with p-Phenylamino(Phenyl) Amine and Fluorescence Property

Autor:	Huaibo Ma, Jing Zhang
Rok vydání:	2019
Předmět:	Materials science 02 engineering and technology Conjugated system 010402 general chemistry lcsh:Technology 01 natural sciences Article chemistry.chemical_compound Diimide General Materials Science Fourier transform infrared spectroscopy lcsh:Microscopy p-phenylamino(phenyl)amine lcsh:QC120-168.85 hydrogen bond lcsh:QH201-278.5 lcsh:T Hydrogen bond Carbon-13 NMR X-ray crystal structure 021001 nanoscience & nanotechnology 0104 chemical sciences Crystallography electrochemistry chemistry lcsh:TA1-2040 imide Proton NMR lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering fluorescence Differential pulse voltammetry lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology lcsh:TK1-9971 Single crystal
Zdroj:	Materials Volume 12 Issue 11 Materials, Vol 12, Iss 11, p 1873 (2019)
ISSN:	1996-1944
DOI:	10.3390/ma12111873
Popis:	A series of aromatic diimide and monoimide compounds condensed with p-phenylamino(phenyl)amine were synthesized and confirmed by Proton Nuclear Magnetic Resonance (1H NMR), Carbon-13 Nuclear Magnetic Resonance (13C NMR), Fourier Transform Infrared Spectroscopy (FT-IR), Elemental Analysis (EA), and High Resolution Mass Spectroscopy (HRMS). Meanwhile, single crystal X-ray diffraction showed the existence of intermolecular N· · O hydrogen bonds, which affected the thermal stabilities of corresponding compounds by the support of Thermalgravimetric Analysis (TGA) curves. The steady-state UV-vis absorption peaks of synthetic compounds 1&ndash 6 appeared in the range of 220&ndash 380 nm. Fluorescence emission spectra showed peaks in the range of 290&ndash 420 nm. Meanwhile, deep-blue or violet-blue emissions for 2, 4, and 5 in THF under excitations of 254 nm and 365 nm, respectively, were observed at room temperature in air. Furthermore, Differential pulse voltammetry (DPV) and cyclic voltammogram CV were conducted within &minus 1.5&ndash +1.5 V to show quasi-reversible behavior for conjugated compounds and irreversible behavior for less conjugated ones.
Databáze:	OpenAIRE
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