1491130-55-2Relevant articles and documents
New platinum(II) one-armed Schiff base complexes for blue and orange PHOLEDs applications
Zhang, Jie,Zhu, Xunjin,Zhong, Aiguo,Jia, Wenping,Wu, Fengshou,Li, Dan,Tong, Hongbo,Wu, Chenglin,Tang, Wenyuan,Zhang, Ping,Wang, Lei,Han, Deman
, p. 153 - 162 (2017)
The condensation of different groups substituted salicylaldehydes with aniline and 2,4,5-trifluoroaniline, afforded five one-armed Schiff base ligands HL1, HL2, HL3, HL4 and HL5. And their platinum(II) complexes Pt(L1)2, Pt(L2)2, Pt(L3)2, Pt(L4)2, Pt(L5)2 and PtL5·DMSO were prepared through the metallation of ligands with K2PtCl4. All ligands and complexes were characterized by 1H NMR, infrared spectroscopy, mass spectrometry and single crystal X-ray diffraction. And their thermal stability, photophysical properties, and electrochemical behaviors were investigated in detail. Using these complexes as phosphorescent emitting materials, blue to orange light-emitting devices were fabricated with moderate efficiencies. The maximum current efficiency, power efficiency, and brightness for the 3.0 wt % Pt(L3)2 doped OLED are 1.12 cd A?1, 0.62 l m W?1 and 1521 cd m?2, respectively. Given the synthetic simplicity and ease of structural variation, the results here indicate that these platinum(II) Schiff base complexes are good candidates for phosphorescent OLEDs.
Photophysical transformations induced by chemical substitution to salicylaldimines
Banasiewicz, Marzena,Barboza, Cristina A.,Gawrys, Pawel,Sobolewski, Andrzej L.,Suwinska, Kinga
, p. 6698 - 6705 (2020/04/09)
A series of different electron-deficient aromatic substituents were used to investigate the role of the electron-acceptor strength on the photophysical properties of salicylaldimine derivatives. These molecules were synthesised and characterised through X-ray diffraction, absorption and emission spectroscopies. Their photochemical reaction mechanisms and properties were explored with the aid of ab initio methods of quantum chemistry. Our results allow us to clarify the dependence of the multiple emission bands on the polarity of the solvent and on the substitution of electron donating and accepting groups to the salicylaldimine core.
Luminescent material emitting orange light and preparing method thereof
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Paragraph 0009; 0010; 0026, (2017/08/02)
The invention relates to a luminescent material emitting orange light and a preparing method thereof. The material is a novel Schiff base platinum complex which can effectively achieve orange light emission, and belongs to the coordination chemistry field of inorganic chemistry. The molecular formula of a monomer of the complex is C34H38N4O2Pt and the molecular weight is 729.77. Pt2L is aniline 4-(Diethylamino)salicylaldehyde Schiff base, belonging to a monoclinic system, with a space group of P2(1)/c and lattice parameters defined in the description. The novel Schiff base platinum complex luminescent material is characterized in that the maximum ultraviolet absorption wavelength of the complex is 446 nm, the maximum emission wavelength is 613 nm, and the decomposition temperature is 272 DEG C. The novel complex is convenient to synthesize and can be prepared with a simple instrument. Besides, the complex has good thermal stability and is not easy to decompose at high temperature.
