Photoelectron spectra and electronic structures of substituted pyrimidines was written by Lottermoser, Ursula;Rademacher, Paul;Mazik, Monika;Kowski, Klaus. And the article was included in European Journal of Organic Chemistry in 2005.Related Products of 37972-24-0 This article mentions the following:
The electronic structures of pyrimidine and its substituted derivatives were studied by UPS and quantum chem. methods. The ionization potentials corresponding to the 锜?MOs 锜?sub>1-锜?sub>3 and the two nN orbitals of the pyrimidine unit could be determined and assigned for all compounds Multiple linear regression analyses of the IPs related to these orbitals with different substituent constants indicated that Hammett 锜?sub>P values performed well for all these IPs, whereas the resonance parameters R and R+ were satisfactory for 锜?and poor for nN ionizations. In the experiment, the researchers used many compounds, for example, 2-Ethynylpyrimidine (cas: 37972-24-0Related Products of 37972-24-0).
2-Ethynylpyrimidine (cas: 37972-24-0) belongs to pyrimidine derivatives. Pyrimidines are isomeric with two other forms of diazines: pyridazine, with the nitrogen atoms in the 1 and 2 positions; and pyrazine, with the nitrogen atoms in the 1 and 4 positions. Pyrimidine derivatives also play an important role in drug development, either in concert with other compounds or on their own.Related Products of 37972-24-0
Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia