L-Phenylalanyl-L-tryptophan 0.75-hydrate.
The title compound, C20H21N3O3.0.75H2O, crystallizes as exceedingly thin fibers. The crystal packing arrangement is related to those of other hydrophobic dipeptides with phenylalanine residues, but the structure has pseudo-tetragonal symmetry in an orthorhombic space group with four peptide molecules and three water molecules in the asymmetric unit.
Görbitz
Carl Henrik
CH
Department of Chemistry, University of Oslo, PO Box 1033 Blindern, N-0315 Oslo, Norway. g.h.gorbitz@kjemi.uio.no
D018360:Crystallography, X-Ray; D004151:Dipeptides / Q000737:chemistry*; D006860:Hydrogen Bonding; D008958:Models, Molecular; D015394:Molecular Structure
D004151:Dipeptides; C028281:phenylalanyltryptophan