Table 2:
Photochromic and thermo- chromic behaviours of the Schiff’s bases anils.
23
24
25
26
27
28
29
30
31
32
34
P/T
P/T
P/T
----
P/T
P
T
P/T
P/T
P/T
P/T
where P = Photochromic ; T = Thermochromic