Dinitro-sylbis[tris-(4-chloro-phen-yl)phosphane]iron

Area of Science:

• Inorganic Chemistry
• Coordination Chemistry
• Bioinorganic Chemistry

Background:

• Dinitrosyl iron compounds (DNICs) are a significant class of metal-dinitrosyl complexes.
• These compounds feature a central iron atom coordinated with nitric oxide (NO) ligands.
• Understanding the structure and properties of DNICs is crucial for their potential applications.

Purpose of the Study:

• To characterize a specific dinitrosyl iron diphosphane complex, [Fe(NO)2(P(C6H4-p-Cl)3)2].
• To elucidate the coordination environment around the iron atom in this complex.
• To contribute to the broader understanding of dinitrosyl iron compounds (DNICs).

Main Methods:

• Synthesis and characterization of the dinitrosyl iron diphosphane complex.
• X-ray crystallography to determine the molecular structure.
• Spectroscopic methods to confirm the coordination of NO groups.

Main Results:

• The complex was identified as [Fe(NO)2(C18H12Cl3P)2], abbreviated as Fe(NO)2L2.
• The iron atom exhibits tetrahedral coordination.
• The iron atom is coordinated by two phosphane ligands (L) and two nitrosyl (NO) groups.
• Fe-N-O bond angles were measured at 178.76(15)° and 177.67(14)°, indicating near-linear nitrosyl coordination.

Conclusions:

• The study successfully characterized a novel dinitrosyl iron diphosphane complex.
• The findings confirm the tetrahedral coordination geometry typical for such compounds.
• This research enhances the understanding of the structural diversity within dinitrosyl iron compounds (DNICs).