The influence of substituents on the geometry of the cyclopropane ring. IV. The molecular and crystal structure of 1‐amino‐1‐phenylcyclopropane

2010 
Crystals of 1-amino-1-phenylcyclopropane, C9H11N, grown from the liquid are mono-clinic, space group P21/n, a = 27.565(5), b = 6.047(6), c = 18.024(4) A, β = 96.76(2) = (110 K). Z = 16. The final R for 4086 independent observed reflections is 0.057. The 4 molecules in the asymmetric unit have the bisecting conformation for the phenyl group and the s-trans pyramidal conformation for the NH2 group. The average distal bond length in the cyclopropane ring is 1.503(4) A; the average vicinal length is 1.520(3) A (corrected for libration).
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