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Updated: Jun 1, 2026
10:45
Stable Aqueous Suspensions of Manganese Ferrite Clusters with Tunable Nanoscale Dimension and Composition
Published on: February 5, 2022
(R)-2-Methyl-piperazine-1,4-diium diaqua-tetra-chloridoferrate(II).
Summary
This study details the crystal structure of a novel iron(II) salt, (Piperazine)[FeCl4(H2O)2]. Researchers identified a distorted octahedral geometry around the iron cation and observed specific hydrogen bonding interactions within the crystal lattice.
Area of Science:
- Inorganic Chemistry
- Crystallography
- Coordination Chemistry
Background:
- The synthesis and characterization of transition metal complexes are crucial for understanding their chemical properties.
- Piperazine derivatives are widely used in medicinal chemistry and materials science.
- Iron(II) complexes exhibit diverse coordination geometries and magnetic properties.
Purpose of the Study:
- To elucidate the crystal structure and coordination environment of a novel iron(II) complex with piperazine.
- To investigate the intermolecular interactions, specifically hydrogen bonding, within the crystal lattice.
- To characterize the coordination geometry of the Fe(II) cation.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Analysis of bond lengths, bond angles, and coordination numbers to describe the geometry.
- Identification and analysis of hydrogen bonding networks using crystallographic data.
Main Results:
- The crystal structure of (Piperazine)[FeCl4(H2O)2] was successfully determined.
- The iron(II) cation exhibits a distorted octahedral coordination geometry, bonded to four chloride anions and two water molecules.
- The piperazine ring adopts a chair conformation, and significant intermolecular hydrogen bonding (N-H⋯Cl, N-H⋯(Cl,Cl), O-H⋯Cl) was observed.
Conclusions:
- The study provides a detailed structural characterization of a new iron(II) complex.
- The observed coordination geometry and hydrogen bonding patterns offer insights into the supramolecular assembly of the salt.
- This structural information can serve as a basis for further investigations into the physical and chemical properties of related iron complexes.
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