. Author manuscript; available in PMC: 2011 Oct 18.

Published in final edited form as: Chemistry. 2010 Oct 18;16(39):11867–11875. doi: 10.1002/chem.201000392

Table 2.

Helical Parameters^[a] for Half-Duplexes Situated on Each Side of the Bipyridines in Bipy PNA.

Duplex	X-Disp. (Å)	Inclination (°)	Rise (Å)	Tilt (°)	Twist (°)	Slide (°)	Roll (°)
R-AB	−3.04	−24.67	4.08	5.70	20.20	−0.01	8.88
R-AB	−3.04	−24.67	4.08	−5.70	20.20	−0.01	8.88
R-CD	−2.82	−24.70	4.07	4.89	20.82	−0.07	9.01
R-CD	−2.82	−24.70	4.07	−4.89	20.82	−0.07	9.01
L-EF	3.80	−21.75	3.99	6.16	−19.54	−0.03	−7.80
L-EF	3.80	−21.75	3.99	−6.16	−19.54	−0.03	−7.80
L-GH	3.75	−21.41	3.97	5.78	−19.53	−0.10	−7.35
L-GH	3.74	−21.42	3.97	−5.78	−19.53	−0.10	−7.35

^[a]

Calculated with respect to a linear helical axis determined for each half.