Abstract
C22N2O5H32,M r =404.5, monoclinic,C2,a=21.781(5),b=5.065(1),c=22.333(4)Å,β=112.81(2)°,V=2271.1(9)Å3,D calc=1.148 g cm3, λ(CuK α)=1.5418 Å,μ=5.89 cm−1,F(000)=848, room temperature,R=0.058 for 2178 unique reflections [I≥2.5σ(I)]. The peptide linkage is in thetrans conformation. The molecule adopts theβ-sheet structure. The crystal structure is stabilized by a three-dimensional network of N-H⋯O and C-H⋯O hydrogen bonds.
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Sukumar, N., Ponnuswamy, M.N. & Jayakumar, R. Crystal structure and conformation of N-(t-butoxycarbonyl)-L-isoleucyl-L-alanine benzylester. Journal of Crystallographic and Spectroscopic Research 23, 769–772 (1993). https://doi.org/10.1007/BF01247238
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DOI: https://doi.org/10.1007/BF01247238