Preparation method of high-fluorescence quantum yield copper complex with function of converting blue-green light into red light through irreversible temperature

• Main Authors: HU RUIXIANG, XIE SHI'AN, ZHANG MANBO
• Format: Patent
• Language: Chinese; English
• Published: 21.01.2022
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; ADHESIVES; CHEMISTRY; DYES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC CHEMISTRY; PAINTS; POLISHES

The invention relates to the technical field of synthesis of transition metal complexes with temperature-induced fluorescence change, in particular to a preparation method of a strong blue-green light copper complex with high fluorescence quantum efficiency and a fluorescent material of a copper complex capable of irreversibly converting into strong red light in a temperature-induced manner. The preparation method comprises the following steps: dissolving 4, 6-dimethyl-2-mercaptopyrimidine, cuprous iodide and triphenylphosphine in acetonitrile, and carrying out an ultrasonic reaction under an alkaline condition to obtain a light blue suspension; and carrying out centrifugal separation, washing and vacuum drying on the obtained turbid liquid to obtain the photoinduced strong blue-green light emitting copper complex (CuPy-PPh3) powder material, wherein the photoluminescence efficiency of the powder material is 95.59%. The blue-green light CuPy-PPh3 is heated to 200 +/-5 DEG C, CuPy powder emitting strong red li