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. Author manuscript; available in PMC: 2018 Feb 27.

Published in final edited form as: J Am Chem Soc. 2008 May 21;130(24):7620–7628. doi: 10.1021/ja710715e

Table 2.

Eyring Activation Parameters for Interconversion of Pyridine Edges in 3a-3d Triflates in CD₃NO₂.

		ΔH^‡ kcal/mol	ΔS^‡ cal/mol.K	R²
3a 12 TfO^-		12.4 (± 2.1)	-16.1 (± 5.5)	0.995
3b 12 TfO^-		11.6 (± 2.0)	-14.4 (± 4.9)	0.994
3c 12 TfO^-	< ∼318 K	11.1 (± 1.9)	-17.5 (± 6.0)	0.993
	> ∼318 K	35.1 (± 2.5)	58.1 (± 8.1)	1.000
3d 12 TfO^-		13.2 (± 2.2)	-13.2 (± 4.5)	0.973