1.2 Cyclic Systems
39
assemblies can be named by placing the prefIx bi... in front of the
unchanged hydrocarbon name.
Bicyclobutyl
Bi( cyclobutane)
Biphenyl
1,2' -Binaphthyl
(1,2' -Binaphthalene)
H2< ) < tH2 Bi(cyclohexa-2,S-dien-1-ylidene)
If three or more identical cyclic systems are joined together the multiplying prefixes ter, quater, quinque, sexi, septi, oeti, novi, ete. are attached to
the hydrocarbon (but not the group) name. Members of the polyphenyl
series are treated as exceptions.
1,1':2',1"-Tercyclopentane
p-Terphenyl
(1,1':4',1"-Terphenyl)
2,2' :8', I" :7",2'" -Quater naphthalene
0- Terphenyl
(1,1':2',1"-Terphenyl)