@article{IUPAC+H02867+2025, url = {https://doi.org/10.1351/goldbook.H02867}, institution = {International Union of Pure and Applied Chemistry (IUPAC)}, year = {2025}, title = {Hückel (4n + 2) rule}, doi = {doi:10.1351/goldbook.H02867}, edition = {5.0.0} }