Table 4. x-component (in Å), ϖ and χ (in °) angle of the denoted vector for different nucleic acid analogs as depicted in Figure 9.

	Vector	x-component	ϖ	χ
B-DNA	C5′–O3′	–2.2	309	262
A-RNA	C5′–O3′	–0.8	318	194
HNA	C6′–O4′	–0.6 (-0.7)a	307 (316)a	215 (223)a
p-RNA	C4′–O2′	2.7 (3.0)b	312 (296)b	241 (230)b
	O4′–O3′	0.2	350	241
α-Lyxo	C4′–O2′	2.2	18	212
	O4′–O3′	–0.6	344	212
α-DNA	C5′–O3′	3.0	111	140
	Parallel: O3′–C5′	–3.0	291	140
α-Homo-DNA	C6′–O4′	0.3	116	136
	Parallel: O4′–C6′	–0.3 (–0.3)c	296 (326)c	136 (158)c
β-Homo-DNA	C6′–O4′	–1.6 (–1.6)d	281 (233)d	230 (278)d

Values are listed for energy-minimized monomers and as measured in a duplex structure if available. For comparison, values in an A-RNA and B-DNA canonical duplex are mentioned.

^a pdb entry 1EJZ (18).

^bQuasi-linear model reconstructed from Schlonvogt et al. (23).

^cModel from Froeyen et al. (13).

^dLinear model reconstructed from Otting et al. (14).