On February 3, 2022, Wang, Xiaomei; Zhu, Lin; Ju, Xiaolei; Wang, Kai; Ye, Changqing; Liang, Zuoqin; Chen, Shuoran published a patent.COA of Formula: C22H23ClN4 The title of the patent was Azaanthracene derivative upconversion system, preparation method therefor and use thereof. And the patent contained the following:
The present invention relates to an azaanthracene derivative upconversion system, a preparation method therefor and use thereof. The azaanthracene derivative free of noble metals and heavy atoms used as a photosensitizer material of TTA-UC can be effectively compounded with a 9,10-diphenylanthracene (DPA) light emitting agent to obtain TTA-UC, and a green-turn-blue upconversion efficiency of up to 9.69% can be obtained. Using the azaanthracene derivative as a light emitting agent material of single photon absorption upconversion, red light of 655 nm excitation can be achieved, a red-turn-yellow single photon absorption upconversion fluorescence color-changing effect of orange-yellow light at about 610 nm can be obtained, and upconversion color changes can be obtained without requiring oxygen removal, thereby enriching the types of light emitting agent materials in the field of single photon absorption upconversion. The azaanthracene derivative has a formula of I, wherein R1 and R2 are selected from NH2 and N(CH2CH3)2, R3 and R4 are selected from H and CH3. The experimental process involved the reaction of 3-Amino-7-(diethylamino)-5-phenylphenazin-5-ium chloride(cas: 4569-86-2).COA of Formula: C22H23ClN4
The Article related to azaanthracene derivative fluorescence upconversion system preparation, Optical, Electron, and Mass Spectroscopy and Other Related Properties: Luminescence and other aspects.COA of Formula: C22H23ClN4
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics