Nucleic Acid Standards
Nitrogenous Bases
Bond Lengths and Angles in Guanine
---------------------------------------------------- Bond or Angle Mean (esd, N) Value ---------------------------------------------------- N1-C2 1.373 (0.008, 21) C2-N3 1.323 (0.008, 21) N3-C4 1.350 (0.007, 21) C4-C5 1.379 (0.007, 21) C5-C6 1.419 (0.010, 21) C6-N1 1.391 (0.007, 21) C5-N7 1.388 (0.006, 21) N7-C8 1.305 (0.006, 21) C8-N9 1.374 (0.007, 21) N9-C4 1.375 (0.008, 21) C2-N2 1.341 (0.010, 21) C6-O6 1.237 (0.009, 21) N9-C1' 1.459 (0.009, 21) C6-N1-C2 125.1 (0.6, 21) N1-C2-N3 123.9 (0.6, 21) C2-N3-C4 111.9 (0.5, 21) N3-C4-C5 128.6 (0.5, 21) C4-C5-C6 118.8 (0.6, 21) C5-C6-N1 111.5 (0.5, 21) C4-C5-N7 110.8 (0.4, 21) C5-N7-C8 104.3 (0.5, 21) N7-C8-N9 113.1 (0.5, 21) C8-N9-C4 106.4 (0.4, 21) N9-C4-C5 105.4 (0.4, 21) N3-C4-N9 126.0 (0.6, 21) C6-C5-N7 130.4 (0.6, 21) N1-C2-N2 116.2 (0.9, 21) N3-C2-N2 119.9 (0.7, 21) N1-C6-O6 119.9 (0.6, 21) C5-C6-O6 128.6 (0.6, 21) C8-N9-C1' 127.0 (1.3, 21) C4-N9-C1' 126.5 (1.3, 21)