Since the area of the band (A1557
)
over the total area of all the three pyridine bands (A1557+A1597
+A1607
) for each sample is approximately a constant (∼0.16),
α1597/α1607
can be assumed to be 1.
1,39,40
The equation can thus
be simplified to The estimated degree of complexation is illustrated in Figure 3.