Atom type |
Description |
Atom type |
Description |
c
c1
c2
c3
ca |
sp2 C in C=O, C=S
sp1 C
sp2 C, aliphatic
sp3 C
sp2 C, aromatic |
o
oh
os
|
sp2 O in C=O, COO-
sp3 O in hydroxyl group
sp3 O in ether and ester
|
n
n1
n2
n3
n4
na
nh
no |
sp2 N in amide
sp1 N
sp2 N with 2 subst.
readl double bond
sp3 N with 3 subst.
sp3 N with 4 subst.
sp2 N with 3 subst
amine N connected
to the aromatic rings
N in nitro group |
s2
sh
ss
s4
s6 |
sp2 S (p=S, C=S etc)
sp3 S in thiol group
sp3 S in -SR and SS
hypervalent S, 3 subst.
hypervalent S, 4 subst. |
hc
ha
hn
ho
hs
hp |
H on aliphatic C
H on aromatic C
H on N
H on O
H on S
H on P |
f
cl
br
i |
any F
any Cl
any Br
any I |
p2
p3
p4
p5 |
sp2 P (C=P etc)
sp3 P, 3 subst.
hypervalent P, 3 subst.
hypervalent P, 4 subst. |