Table 3.

Dihedral angles of the pyramidized base atoms for the radical anions of nucleotides

Species	Dihedrala	Comparisons
3′,5′-dADP−	0.6°	(30.7°)b
3′,5′-dGDP−	0.2°	(0.4°)b
3′,5′-dCDP−	2.8°	(8.7°)b, (20.2°)c, (11.8°)d
3′,5′-dTDP−	2.9°	(16.5°)b, (23.7°),c (16.8°)d

^aDihedral is D_N9-N7-H8-C8 for purine and D_N1-C5-H6-C6 for pyrimidine. See Scheme 1 for atom labels.

^bDihedral of the corresponding nucleosides. Reference (2), also this work.

^cDihedral of the corresponding 3′-dCDP⁻ and 3′-dTDP⁻. References (32,33) and this work.

^dDihedral of the corresponding 5′-dCDP⁻ and 5′-dTDP⁻. Reference (10), and this work.