Fig. 2 in Are thymol, rosefuran, terpinolene and umbelliferone good scavengers of peroxyl radicals?

Fig. 2. Optimized molecular structures (a), frontier molecular orbitals (b), and molecular electrostatic potentials (c) of the studied compounds computed at M05-2X/ 6–311++ G(d,p) level of theory in the gas phase. For the molecular electrostatic potentials, a deep red color indicates an electron-rich site, whereas deep blue indicates an electron-deficient site. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)