DL-Norleucine, [beta] Form at 120K

This paper forms part VI in the series of the crystal structures of hydrophobic amino acids. A low-temperature form (120 K) of DL-norleucine (2-aminohexanoic acid, C₆H₁₃NO₂), has been solved and refined in the space group C2/c. Molecular packing and cell parameters correlate very well with those proposed for the [beta]-form of DL-norleucine as deduced by Mathieson [Acta Cryst. (1953), 6, 399-403]. Estimated standard deviations betweeen heavy atoms are 0.001-0.002 Å.

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