The Structure of DL- and D-Leucine.

Möller, Chr. Knakkergård; Schwarz, Birgit; Melaja, Asko; Kainulainen, Aune; Halonen, Aira; Pulkkinen, Erkki

doi:10.3891/acta.chem.scand.03-1326

Cited by 7 publications

(3 citation statements)

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“…Leucine is one of the naturally occurring -amino acids. The crystal structures of l-leucine (Harding & Howieson, 1976;Coll et al, 1986;Gö rbitz & Dalhus, 1996), dl-leucine (Di Blasio et al, 1975), d-leucine (Moller, 1949) and di-l-leucine hydrochloride (Golič & Hamilton, 1972) have been determined. The crystal structures of amino acids and their complexes have provided interesting information about aggregation, and the effect of other molecules on their interaction and molecular properties (Vijayan, 1988;Prasad & Vijayan 1993).…”

Section: Commentmentioning

confidence: 99%

L-LeucineL-leucinium picrate

2005

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The asymmetric unit of the title compound, C6H13NO2·C6H14NO2+·C6H2N3O7−, contains two unprotonated leucine residues, two protonated leucinium cations and two picrate anions. The leucine residues show a class II hydrogen‐bonding scheme and the leucinium residues show a class I hydrogen‐bonding scheme. The leucine and leucinium residues form infinite hydrogen‐bonded chains running along the a axis.

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Section: Commentmentioning

confidence: 99%

L-LeucineL-leucinium picrate

2005

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“…The cell parameters and space group have been determined for the racemic mixture [61] and for D-Ieucine [63], while the structure of L-Ieucine HBr has been established [64]. Subramanian's model was refined by least squares with individual isotropic temperature factors, the final R(hkZ) being 160/0.…”

Section: (Ch3)zchch2ch(nh 2 )Coohmentioning

confidence: 99%