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Updated: Jun 1, 2026

A Study of the Complexation of Mercury(II) with Dicysteinyl Tetrapeptides by Electrospray Ionization Mass Spectrometry
Published on: January 8, 2016
Chlorido(2-formyl-6-hydroxy-phenyl-κC)mercury(II)
This study details the crystal structure of a mercury(II) compound, [Hg(C(7)H(5)O(2))Cl]. It reveals a linear coordination around the mercury atom and a five-membered metallacycle, forming a 1D supramolecular structure via hydrogen bonds.
Area of Science:
- Inorganic Chemistry
- Crystal Engineering
- Coordination Chemistry
Background:
- Mercury(II) compounds exhibit diverse coordination geometries.
- Understanding supramolecular assembly is crucial for materials science.
- Benzene derivatives offer versatile ligands for metal complexation.
Purpose of the Study:
- To elucidate the crystal structure and coordination behavior of [Hg(C(7)H(5)O(2))Cl].
- To investigate the intra- and inter-molecular interactions within the mercury compound.
- To characterize the resulting supramolecular architecture.
Main Methods:
- Single-crystal X-ray diffraction analysis was employed.
- Structural parameters including bond lengths, angles, and dihedral angles were determined.
- Hydrogen bonding and crystal packing were analyzed.
Main Results:
- The mercury(II) atom displays linear coordination with a benzene carbon and a chlorine atom.
- A weak intra-molecular Hg-O coordination bond forms a five-membered metallacycle.
- Inter-molecular O-H⋯O hydrogen bonds link molecules into a one-dimensional supramolecular chain.
Conclusions:
- The crystal structure of [Hg(C(7)H(5)O(2))Cl] is characterized by linear Hg(II) coordination and a near-planar metallacycle.
- Supramolecular assembly is driven by inter-molecular hydrogen bonding, forming a 1D architecture.
- This study contributes to the understanding of mercury coordination chemistry and crystal engineering principles.
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