Determination of New IR and UV/VIS Spectroscopic Parameters of the C-84-D-2:22 Isomer for Its Quantitative Assessment, Identification and Possible Applications

The stable isomers of the higher fullerenes C-76-D-2 and C-84-D-2:22, as well as fullerenes C-60 and C-70 were isolated from carbon soot by the new and improved extraction and chromatographic methods and processes. Characterizations of the C-84-D-2:22 isomer in this study were performed by infrared and electronic absorption spectroscopy. All of the experimentally observed IR and UV/VIS bands were in excellent agreement with the semi-empirical, DFT and TB potential theoretical calculations for this molecule. The molar extinction coefficients and the integrated molar extinction coefficients of the observed larger number of completely separated infrared absorption maxima and shoulders of fullerene C-84-D-2:22, as well as of its main convoluted maxima, in different and new relevant entire integration ranges, including neighboring, and all surrounding absorption shoulders were determined and their relative intensities compared. In addition, the molar absorptivity of the electronic absorption bands of this carbon cluster was found. The new IR and UV/VIS spectroscopic parameters that are significant for the quantitative determination, identification and numerous possible applications of C-84-D-2:22 are obtained and their changes compared to C-76-D-2 observed. Isolated and characterized C-84-D-2:22, as well as other fullerenes from this research can be used in electronic, optical, chemical and biomedical devices, superconductors, semiconductors, batteries, catalysts, polymers, sensors, solar cells, nanophotonic lenses with better optical transmission, refraction and wettability, diagnostic and therapeutic pharmaceutical substances, such as those against diabetes, cancer, neurodegenerative disorders, free radical scavenging, radio nuclear, antibacterial and antiviral agents that can inhibit HIV 1, HSV, COVID-19, influenza, malaria and so forth