Nucleic Acid Standards
Nitrogenous Bases
Bond Lengths and Angles in Cytosine
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Bond or Angle Mean (esd, N)
Value
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N1-C2 1.397 (0.010, 28)
C2-N3 1.353 (0.008, 28)
N3-C4 1.335 (0.007, 28)
C4-C5 1.425 (0.008, 28)
C5-C6 1.339 (0.008, 28)
C6-N1 1.367 (0.006, 28)
C2-O2 1.240 (0.009, 28)
C4-N4 1.335 (0.009, 28)
N1-C1' 1.470 (0.012, 28)
C6-N1-C2 120.3 (0.4, 28)
N1-C2-N3 119.2 (0.7, 28)
C2-N3-C4 119.9 (0.5, 28)
N3-C4-C5 121.9 (0.4, 28)
C4-C5-C6 117.4 (0.5, 28)
C5-C6-N1 121.0 (0.5, 28)
N1-C2-O2 118.9 (0.6, 28)
N3-C2-O2 121.9 (0.7, 28)
N3-C4-N4 118.0 (0.7, 28)
C5-C4-N4 120.2 (0.7, 28)
C6-N1-C1' 120.8 (1.2, 28)
C2-N1-C1' 118.8 (1.1, 28)