Table 1 Zn-1: calculated lengths (in Å) of bonds labeled in Fig. 1

From: Porphene and porphite as porphyrin analogs of graphene and graphite

Bond label

P2mm (0.0 kcal/mol)

P4mm (3.7 kcal/mol)

a

2.02

2.00

b

1.33

1.35

c

1.40

1.40

d

1.41

1.43

e

1.36

1.39

f

1.45

1.42

g

1.42

1.39

h

1.40

1.39

i

1.38

1.42

j

1.41

1.40

k

1.28

1.34

l

1.39

1.35