S. No.

N-R

A

B

Temperature range (K)

KJmol1

JK−1mol−1

1

Methyl

16.7 (±0.2)

7994.7 (±99.2)

571 - 587

153.1 (±1.9)

319.7 (±3.9)

2

Ethyl

14.1 (±0.3)

6423.7 (±20.0)

556 - 591

122.9 (±0.3)

229.9 (±5.8)

3

Propyl

16.6 (±0.9)

7706.4 (±563.9)

549 - 580

147.6 (±10.7)

317.8 (±17.2)

4

Butyl

16.7 (±1.0)

7929.4 (±573.8)

549 - 580

151.8 (±10.9)

319.7 (±19.1)

5

Pentyl

13.3 (±0.5)

5989.7 (±276.2)

549 - 580

114.7 (±5.3)

254.6 (±9.6)