Piazzesi, Anna Maria ; Bardi, Renato ; Crisma, Marco ; Toniolo, Claudio ; Singh, Mahak ; Chauhan, Virander Singh (1993) Molecular and crystal structure of a dehydroalanine dipeptide Zeitschrift für Kristallographie, 207 (1). pp. 25-32. ISSN 0044-2968
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Official URL: http://www.oldenbourg-link.com/doi/abs/10.1524/zkr...
Related URL: http://dx.doi.org/10.1524/zkri.1993.207.Part-1.25
Abstract
The molecular and crystal structure of the synthetic, terminally blocked, model dipeptide t-Boc-L-Val-ΔAla-OMe (1) was determined by single-crystal X-ray diffraction. Crystal data for 1 are: C14H24N2O5, hexagonal, space group P65 (no.170), a = 10.8000(2) Å, c = 27.077(2) Å, and Z = 6. The crystal structure was solved by direct methods. The least-squares refinement led to R and Rw values of 0.077 and 0.075, respectively, for 1298 reflections F ≥ 5 σ(F). The conformation of the Val residue is partially extended, while that of ΔAla residue is trans, cis. The N-terminal protecting groups is in the trans, trans disposition.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Oldenbourg Wissenschaftsverlag. |
| ID Code: | 77492 |
| Deposited On: | 12 Jan 2012 14:37 |
| Last Modified: | 12 Jan 2012 14:37 |
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