Journal Article 8 nucleus independent chemical shift 2 13C chemical shift 1 Adsorption 1 Clar's aromatic π-sextet 1 Diels-Alder 1 Diffusion 1 mehr ... Nucleus-independent chemical shift 1 Porous carbons 1 Research Support, Non-U.S. Gov't 1 Ring current shielding 1 adaptative natural density partitioning 1 aromatic fluctuation index 1 aromaticity 1 aromaticity on the magnetic criterion 1 carbene electron deficiency 1 carbenes/zwitterions 1 cyclobutane-1,2,3,4-tetraone 1 cyclobutane-1,2,3,4-tetraselenone 1 cyclobutane-1,2,3,4-tetrathione 1 density functional theory 1 electrocyclization 1 electron localization function 1 energy decomposition analysis 1 harmonic oscillator model of aromaticity 1 helicenes 1 hydrogen bonding 1 infinitene 1 local vibrational modes 1 molecular orbitals 1 weniger ...