The term was originally applied to describe the maximum flocking of either hard or soft @L03518@ in the same complexes. For hydrocarbon molecules, symbiosis implies that those containing a maximum number of C–H bonds (e.g. CH4) or C–C bonds (e.g. Me4C) are the most @S05900@.
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1170 [Terms] [Paper]