. 2024 May 30;146(23):16332–16339. doi: 10.1021/jacs.4c05358

Table 1. Structural Parameters and Calculated Strain Energies for 5a–5c.

	d^a/Å	θ^b/°	POAV angle/°				E^c/kcal mol^–1
	d^a/Å	θ^b/°	a	b	c	d	E^c/kcal mol^–1
5a	10.55	33.8	3.2	1.2	1.2	2.2	22.9
5b	10.78	29.4	2.6	1.2	1.5	2.0	19.7
5c	11.15	19.4	2.0	0.6	0.7	1.0	17.4

Nitrogen–nitrogen distance.

End-to-end bend angle.

Strain energy.