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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)

					

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