[xbeatlespunkx]

does anyone know or know where i could find the bong lengths of
C-H
N-H
C-N

[One Armed Scissor]

You can find it in most textbooks I'm guessing. But anyway... here they are
C-H = 0.109 nm
N-H = 0.101 nm
C-N (in phenylamine) = 0.135 nm
C=N = 0.127 nm
C=N = 0.116 nm