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Updated: Jun 1, 2026
12:59
A Study of the Complexation of Mercury(II) with Dicysteinyl Tetrapeptides by Electrospray Ionization Mass Spectrometry
Published on: January 8, 2016
[1,3-Bis(2-ethoxy-phen-yl)triazenido]chloridomercury(II)
Summary
This study details the crystal structure of a mercury(II) compound, [Hg(C(16)H(18)N(3)O(2))Cl]. The mercury atom exhibits tetrahedral coordination with a triazenido ligand and a chloride ion, revealing specific molecular geometry and crystal packing interactions.
Area of Science:
- Inorganic Chemistry
- Crystallography
- Coordination Chemistry
Background:
- Mercury(II) compounds exhibit diverse coordination geometries.
- Triazenido ligands offer versatile coordination modes in metal complexes.
- Understanding crystal packing is crucial for predicting material properties.
Purpose of the Study:
- To characterize the crystal structure of a novel mercury(II) complex.
- To elucidate the coordination environment around the mercury(II) ion.
- To investigate intermolecular interactions within the crystal lattice.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Analysis of bond lengths, bond angles, and dihedral angles provided geometric insights.
- Identification of non-covalent interactions, such as C-H⋯π stacking, was performed.
Main Results:
- The mercury(II) center displays a four-coordinate, tetrahedral geometry.
- Coordination involves two nitrogen atoms and one oxygen atom from a 1,3-bis-(2-ethoxy-phenyl)triazenido ligand and a terminal chloride ion.
- A small dihedral angle (1.72°) between aromatic rings and the presence of C-H⋯π stacking were observed.
Conclusions:
- The synthesized mercury(II) complex adopts a defined tetrahedral coordination geometry.
- The crystal structure is stabilized by specific intermolecular C-H⋯π interactions.
- This structural information contributes to the understanding of mercury coordination chemistry and solid-state behavior.
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