Abdelaziz, A.; Zaitsau, D. H.; Buzyurov, A. V.; Verevkin, S. P.; Schick, C. published an article in 2020, the title of the article was Sublimation thermodynamics of nucleobases derived from fast scanning calorimetry.Name: 5-Methylpyrimidine-2,4(1H,3H)-dione And the article contains the following content:
The five fundamental units of the genetic code: uracil (U), thymine (T), cytosine (C), adenine (A) and guanine (G) are known for extremely low vapor pressure and low thermal stability at elevated temperatures Therefore, application of conventional techniques for the determination of sublimation enthalpies and vapor pressures fails to provide accurate results. Recently, a Fast Scanning Calorimetry method (FSC) for vapor pressure determination was developed for investigation of extremely low volatile, as well as for thermally unstable mol. and ionic mols. This success has encouraged application of the FSC method for determination of vapor pressures and sublimation enthalpies of the five nucleobases, where available literature data are in disarray. The thermodn. data of the nucleobases available in the literature were collected, evaluated, and combined with our exptl. results to reconcile available exptl. data. The set of evaluated thermochem. data on the five nucleobases was recommended as the benchmark properties for these thermally labile compounds The experimental process involved the reaction of 5-Methylpyrimidine-2,4(1H,3H)-dione(cas: 65-71-4).Name: 5-Methylpyrimidine-2,4(1H,3H)-dione
The Article related to nucleic acid base sublimation enthalpy vapor pressure heat capacity, Physical Organic Chemistry: Other Reactions, Processes, and Spectra and other aspects.Name: 5-Methylpyrimidine-2,4(1H,3H)-dione
Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia