STRUCTURAL CHARACTERIZATION AND THERMAL-B EHAVIOR OF AMINO-11-UNDECANOIC ACID (C11H23NO2.1.5H2O)

Authors
AIGOUY PT COSTESEQUE P SEMPERE R SENAC T JAUD J ANGLEROT D
Citation
Pt. Aigouy et al., STRUCTURAL CHARACTERIZATION AND THERMAL-B EHAVIOR OF AMINO-11-UNDECANOIC ACID (C11H23NO2.1.5H2O), Acta crystallographica. Section B, Structural science, 51, 1995, pp. 55-61
Citations number
7
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section B, Structural science → ACNP
ISSN journal
01087681
Volume
51
Year of publication
1995
Part
1
Pages
55 - 61
Database
ISI
SICI code
0108-7681(1995)51:<55:SCATEO>2.0.ZU;2-J
Abstract
This new study on amino-11-undecanoic acid (A11U) leads to the structu ral unit C11H23NO2.1.5H(2)O in normal conditions and the corresponding saturated water-vapour pressure. It crystallizes in the monoclinic sp ace group C2/c with a=15.940(4), b=4.714(2), c=35.436(5)Angstrom, beta = 98.2(1)degrees and Z=8. The structure determined using single-crysta l X-ray diffraction direct methods has been refined to R = 0.069 for 8 42 reflections. X-ray powder diffraction diagrams for the hydrous and the anhydrous phases are given and indexed with, respectively, 106 and 39 diffraction peaks.