On the molar extinction coefficient and integrated molar absorptivity of the infrared absorption spectra of C _(60) and C _(70) ful

摘要

The molar extinction coefficients, known also as molar absorptivity ε of C _(60) and C _(70) fullerenes infrared absorption spectra were determined at room temperature on samples embedded in KBr pellets. Furthermore, the integrated molar absorptivity Ψ of each absorption infrared band either of C _(60) and of C _(70) was measured and reported together with the relative intensity of the infrared absorption bands. These results can be useful in the quantitative determination of C _(60) and C _(70) fullerenes in space after the recent discovery that these molecules are present around the young planetary nebula Tc1.