Assertion: pyrimidine | /r/CapableOf | retain symmetry
Facets:
value: about the 2
type: OTHER
Source sentences:
text: Pyrimidine only retains symmetry about the 2, 5-axis and when compared with benzene, the replacement of two CH units by nitrogen atoms, which are electron attracting and in mutually reinforcing positions, means that the reactivities of the remaining carbon atoms and substituents attached to them vary considerably.