In 2019,ACS Applied Materials & Interfaces included an article by Shafikov, Marsel Z.; Daniels, Ruth; Pander, Piotr; Dias, Fernando B.; Williams, J. A. Gareth; Kozhevnikov, Valery N.. Application In Synthesis of 4,6-Dichloropyrimidine. The article was titled 《Dinuclear Design of a Pt(II) Complex Affording Highly Efficient Red Emission: Photophysical Properties and Application in Solution-Processible OLEDs》. The information in the text is summarized as follows:
The light-emitting efficiency of luminescent materials is invariably compromised on moving to the red and near-IR regions of the spectrum due to the transfer of electronic excited-state energy into vibrations. The authors describe how this undesirable energy gap law can be sidestepped for phosphorescent organometallic emitters through the design of a mol. emitter that incorporates two Pt(II) centers. The dinuclear cyclometalated complex of a substituted 4,6-bis(2-thienyl)pyrimidine emits very brightly in the red region of the spectrum (λmax = 610 nm, Φ = 0.85 in deoxygenated CH2Cl2 at 300 K). The lowest-energy absorption band is extraordinarily intense for a cyclometalated metal complex: at λ = 500 nm, ε = 53,800 M-1 cm-1. The very high efficiency of emission achieved can be traced to an unusually high rate constant for the T1 → S0 phosphorescence process, allowing it to compete effectively with nonradiative vibrational decay. The high radiative rate constant correlates with an unusually large zero-field splitting of the triplet state, which is 40 cm-1 by variable-temperature time-resolved spectroscopy over the range 1.7 < T < 120 K. The compound was successfully tested as a red phosphor in an organic light-emitting diode prepared by solution processing. The results highlight a potentially attractive way to develop highly efficient red and NIR-emitting devices through the use of multinuclear complexes. In the experimental materials used by the author, we found 4,6-Dichloropyrimidine(cas: 1193-21-1Application In Synthesis of 4,6-Dichloropyrimidine)
4,6-Dichloropyrimidine(cas: 1193-21-1) is a member of organic chlorides. Organic chloride content in crude oil can be detected through specialized laboratory analysis. Care and attention are essential while sampling and testing.Application In Synthesis of 4,6-Dichloropyrimidine
Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia