Polyethylene Glycol Mediated Kinetic Study of Nitro Decarboxylation of α,β-Unsaturated Acids by Blau’s Fe(III) Phen Complex

Table 3

Activation parameters involving rate constant (𝑘).

Substrate	PEG	𝑘	Δ𝐻^#	Δ𝐺^#	Δ𝑆^#
		dm^3 mol^−1 s^−1 at 310 K	kJ/mol		J/K/mol
Cinnamic acid	200	2318	21.7	56.2	−111
	300	5925	58.8	62.0	−10.2
	400	1975	23.8	56.2	−104
	600	2857	36.5	55.7	−62.0
Crotonic acid	200	3404	30.2	54.6	−78.6
	300	5925	37.2	54.0	−54.0
	400	2000	38.4	56.0	−56.6
	600	2857	43.9	54.5	−34.2
Acrylic acid	200	1975	23.8	56.2	−104
	300	3636	46.9	54.0	−23.1
	400	3404	44.0	54.2	−33.2
	600	2857	46.5	57.7	−28.6
Methoxy cinnamic acid	200	1584	18.3	56.6	−122
	300	5333	34.5	66.6	4.0
	400	3018	75.2	72.9	7.5
	600	2857	36.5	38.8	−7.4
Nitro cinnamic acid	200	2318	21.0	56.2	−113
	300	5925	54.8	55.1	−1.1
	400	3404	41.3	54.3	−41.7
	600	3809	38.2	54.4	−52.5