Journal ArticleDOI
Crystal and molecular structure of glycinehydroxamic acid
Tadeusz Głowiak,M. Koralewicz +1 more
TLDR
Glycinehydroxamic acid, C2H6N2O2 (NH2CH2C(O)NHOH), was synthesized and its crystal and molecular structure determined by single-crystal X-ray diffraction methods.Abstract:
Glycinehydroxamic acid, C2H6N2O2 (NH2CH2C(O)NHOH), was synthesized and its crystal and molecular structure determined by single-crystal X-ray diffraction methods. The crystals are monoclinic:P21/c C2h5, No. 14),a=5.682(2),b=7.133(2),c=9.540(3) A,β=104.38(4)°,Z=4. The structure has been solved by direct phase determination methods, and refined to anR value of 0.042 for 633 nonzero independent amplitudes. The molecule of the title compound exists in the structure as a zwitterion, NH3+-CH2-C(O)-N-OH. The hydroxamate group is planar and the Nα (amino) atom, from the glycine part of the molecule, deviates by 1.43 A from the best molecular plane defined by O(1), N(1), C(1), and O(2) atoms, respectively.read more
Citations
More filters
Journal ArticleDOI
Hydroxamic and aminohydroxamic acids and their complexes with metal ions
Journal ArticleDOI
The role of the carboxylic group in the copper(II) mixed-ligand complexes of dl-aspartic acid-β-hydroxamic acid and polyamines
TL;DR: In this paper, the mixed-ligand complexes of the Cu2+ ion with polyamines were analyzed by potentiometric titration and UV-Vis and EPR spectroscopy.
Journal ArticleDOI
Structural studies of oxalohydroxamic acid by single crystal X-ray diffraction and spectroscopic methods
TL;DR: In this article, the structure of oxalohydroxamic acid has been investigated by X-ray and spectroscopic analyses and the kinetic and the thermodynamic parameters such as the rate constant (K), the free energy of activation $(\Delta G^{\ddagger})$, and the energy of activations $(E_a)$ for the exchange process have been obtained.
Journal ArticleDOI
The X-ray crystal structures of bis(l-α-alaninehydroxamato)nickel(II) and bis(l-α-alaninehydroxamato)copper(II)
Tadeusz Głowiak,Barbara Kurzak +1 more
TL;DR: In this article, the structure of Ni(II) and Cu(II)-Alaha complexes has been determined by single-crystal X-ray diffraction methods, where Ni(α-Alaha)2·2H2O (I) is monoclinic witha=12.267(4),b=4.463(3),c=20.198(5) A,Z=4 and space groupP212121.
Journal ArticleDOI
General regioselective synthesis of 2,2-disubstituted 3-hydroxyimidazolidin-4-ones
I. V. Vystorop,Konstantin A. Lyssenko,Vladimir N. Voznesensky,Vera P. Lodygina,Remir G. Kostyanovsky +4 more
TL;DR: In this article, the reactions of glycine hydroxamic acid with aliphatic ketones and acetophenone are commonly used for the regioselective synthesis of cyclic hyroxamic acids 6a-e.
References
More filters
Book
International tables for X-ray crystallography
Norman Fordyce McKerron Henry,Lonsdale, Kathleen, Dame,John S. Kasper,Caroline H. MacGillavry,Gerard D. Rieck,James A. Ibers,Walter C. Hamilton +6 more
Journal ArticleDOI
The application of phase relationships to complex structures. III. The optimum use of phase relationships
G. Germain,P. Main +1 more
TL;DR: An improvement is described in the automatic procedure for solving crystal structures incorporated in the computer program LSAM, and an absolute figure of merit is described to indicate probably correct phase sets for multisolution methods.
Journal ArticleDOI
The Chemistry of Hydroxamic Acids and N-Hydroxyimides
Ludwig Bauer,Otto Exner +1 more
TL;DR: In this article, a progress report on the structure and reactions of hydroxamic acids and N-hydroxyimides is presented, and some of the biological activities of these compounds are surveyed.
Journal ArticleDOI
The complexing power of hydroxamic acids and its effect on the behaviour of organic extractants in the reprocessing of irradiated fuels—I the complexes between benzohydroxamic acid and zirconium, iron (III) and uranium (VI)
F. Baroncelli,G. Grossi +1 more
TL;DR: In this paper, the authors investigated the stability of Zr4+, Fe3+ and UO22+ ion complexes with benzohydroxamic acid using the distribution method and pH-potentiometric method.
Related Papers (5)
Crystal and molecular structure of 1-amino-1-methylethylphosphonic acid monohydrate
X-ray crystal structure of DL-aspartic acid-β-hydroxamic acid (N-hydroxyasparagine) monohydrate
Tadeusz Głowiak,Barbara Kurzak +1 more