The dipole has at least one resonance structure with positive and negative charges having a 1,3 relationship which can generally be denoted as +a−b−c−, where a may be a carbon, oxygen or nitrogen, b may be nitrogen or oxygen, and c may be a carbon, oxygen or nitrogen.[3]
^Francis A. Carey, Richard J. Sundberg (2007). "Part A: Structure and mechanisms". Advanced Organic Chemistry (5, illustrated ed.). Springer. p. 874. ISBN 978-0-387-44897-8.
^IUPAC Gold Book dipolar compounds
^Jagadamba, Singh (2009). Photochemistry and Pericyclic Reactions. New Academic Science. p. 100. ISBN 978-1906574161.
^https://www.organic-chemistry.org/namedreactions/ozonolysis-criegee-mechanism.shtm Ozonolysis mechanism on Organic Chemistry Portal site
^Li, Jie Jack: Criegee mechanism of ozonolysis Book: Name Reactions. 2006, 173-174, doi:10.1007/3-540-30031-7_77