TY - RPRT TI - Which electron count rules are needed for four-center three-dimensional aromaticity? AU - AA Fokin AU - B Kiran AU - M Bremer AU - X Yang AU - H Jiao AU - von Rague Schleyer P AU - PR Schreiner PY - 2000 DO - 10.1002/(sici)1521-3765(20000502)6:9<1615::aid-chem1615>3.3.co;2-f UR - https://pubmed.ncbi.nlm.nih.gov/10839179/ ID - 10839179 ER -