(2-Chloro-pyrimidin-4-yl)ferrocene.

Area of Science:

• Organometallic Chemistry
• Crystallography
• Coordination Chemistry

Background:

• Ferrocene derivatives are crucial in catalysis and materials science.
• Understanding the structural nuances of substituted ferrocenes informs their reactivity.
• The electronic and steric properties of ligands significantly influence metal complex geometry.

Purpose of the Study:

• To elucidate the three-dimensional structure of the novel iron compound [Fe(C5H5)(C9H6ClN2)] through single-crystal X-ray diffraction.
• To analyze the conformational preferences and dihedral angles within the ferrocene moiety and its interaction with the pyrimidinyl ligand.
• To provide foundational structural data for potential applications in catalysis or materials science.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the molecular structure.
• The crystal structure was solved and refined using standard crystallographic techniques.
• Geometric parameters, including bond lengths, bond angles, and dihedral angles, were analyzed.

Main Results:

• The crystal structure of [Fe(C5H5)(C9H6ClN2)] was successfully determined.
• The two cyclopentadienyl rings exhibited a near-parallel orientation with a dihedral angle of 3.01(5)°.
• A dihedral angle of 12.02(1)° was observed between the substituted cyclopentadienyl ring and the pyrimidinyl ring.
• The conformation of the cyclopentadienyl rings within the ferrocenyl moiety was found to be eclipsed.

Conclusions:

• The compound [Fe(C5H5)(C9H6ClN2)] adopts a specific solid-state conformation characterized by nearly parallel cyclopentadienyl rings and an eclipsed arrangement.
• The observed dihedral angles provide critical structural information for understanding electronic communication and steric interactions.
• This structural characterization serves as a basis for future investigations into the reactivity and properties of this organometallic complex.