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Tris[(R)-lactamide-kappa2O,O']zinc(II) tetrabromozincate
Alain Bekaert1, Pascale Lemoine, Jean Daniel Brion
1Université de Paris XI, Faculté des Sciences Pharmaceutiques et Biologiques, Laboratoire de Chimie Thérapeutique BioCIS, UPRES-A 8076 CNRS, 5 rue J. B. Clément, 92296 Châtenay-Malabry Cedex, France.
Acta Crystallographica. Section C, Crystal Structure Communications
|February 8, 2005
Summary
This study characterizes a novel zinc coordination compound, tris[(R)-2-hydroxypropanamide-kappa2O,O']zinc(II) tetrabromozincate. The crystal structure reveals a six-coordinate zinc cation and a [ZnBr4]2- anion linked by hydrogen bonds.
Area of Science:
- Inorganic Chemistry
- Crystallography
- Coordination Chemistry
Background:
- Zinc(II) complexes are vital in various chemical and biological systems.
- Understanding the structural nuances of zinc coordination compounds is key to their application.
- The compound tris[(R)-2-hydroxypropanamide-kappa2O,O\]zinc(II) tetrabromozincate, [Zn(C3H7NO2)3][ZnBr4], presents a unique structural motif.
Purpose of the Study:
- To elucidate the crystal structure and coordination environment of [Zn(C3H7NO2)3][ZnBr4].
- To analyze the bonding interactions and geometric parameters within the complex cation and anion.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Analysis of bond lengths, angles, and hydrogen bonding interactions was performed.
Main Results:
- The structure consists of a six-coordinate monomeric zinc complex cation and a tetrahedral [ZnBr4]2- anion.
- Both zinc(II) atoms are situated on threefold axes.
- The cation exhibits distorted octahedral geometry with Zn-O bond lengths of approximately 2.07 A.
- Hydrogen bonds (N-H...Br and O-H...O) link cations and anions, forming a 3D network.
Conclusions:
- The study provides a detailed structural characterization of the novel zinc coordination compound.
- The hydrogen bonding network plays a crucial role in stabilizing the crystal lattice.
- This research contributes to the understanding of zinc coordination chemistry and crystal engineering.