Assertion: steric hindrance | /r/CreatedBy | substituent
Facets:
value: in the ortho position
type: LOCATION
Source sentences:
text: The steric hindrance caused by the substituents in the ortho position, other than aliphatic groups, decreases the basicity; thus, a value of –n.0.29 (where n = 2 or 3 if there are one or two ortho-position substituents in question) must be added.