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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
Dichloridobis(N,N'-diethyl-thio-urea-κS)mercury(II)
Summary
This study details the crystal structure of a mercury(II) chloride complex with N,N'-diethyl-thio-urea ligands. Intramolecular hydrogen bonds dictate molecular shape, while intermolecular bonds form polymeric chains.
Area of Science:
- Inorganic Chemistry
- Crystal Engineering
- Coordination Chemistry
Background:
- Thiourea derivatives are versatile ligands in coordination chemistry.
- Mercury(II) complexes exhibit diverse structural motifs and bonding.
- Hydrogen bonding plays a crucial role in supramolecular assembly.
Purpose of the Study:
- To elucidate the crystal structure of the [HgCl(2)(N,N'-diethyl-thio-urea)(2)] complex.
- To investigate the role of hydrogen bonding in the molecular and crystal structure.
- To characterize the coordination geometry around the mercury(II) center.
Main Methods:
- Single-crystal X-ray diffraction analysis.
- Analysis of intra- and intermolecular hydrogen bonding interactions.
- Description of molecular geometry and coordination environment.
Main Results:
- Two molecules in the asymmetric unit feature cis,trans N,N'-diethyl-thio-urea ligands.
- Intramolecular N-H⋯Cl hydrogen bonds significantly influence molecular conformation.
- Distorted tetrahedral coordination (S(2)Cl(2)) around Hg(II) and formation of a 1D polymer via intermolecular hydrogen bonds.
Conclusions:
- The crystal structure reveals a complex interplay of coordination and hydrogen bonding.
- Intramolecular hydrogen bonds stabilize specific ligand conformations.
- Intermolecular interactions lead to the formation of extended polymeric structures.
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