Synthesis and characterization of amidinate-iron(I) complexes: analogies with beta-diketiminate chemistry.

Journal article

The synthesis and characterization of amidinate-iron(I) complexes and its reactivity towards dinitrogen and carbon monoxide was reported. It is found that one complex is formed by the irreversible displacement of neutral N2 from the other complex upon its treatment with benzene. The differences in the reactivity of two complexes towards arene solvents is due to the ability of the Piso ion ligand to vary its coordination mode between N,N' and N,arene chelating. The smaller cone angle of the Piso ion ligand leads to a less steric interaction with the η6-arene ligand. The Fe-η6- arene centroid and Fe-N(amido) distances are similar in the two complexes. The coordinative flexibility of Piso ion leads to the ion centers having a higher coordination number than when the ligand acts in a N,N'-chelating mode.

Authors: Rose, R; Jones, C; Schulten, C; Aldridge, S; Stasch, A

• Publication status: Published
• Journal: Chemistry (Weinheim an der Bergstrasse, Germany)
• Volume: 14
• Issue: 28
• Pages: 8477-8480
• Publication date: 2008-01-01
• DOI: 10.1002/chem.200801071
• EISSN: 1521-3765
• ISSN: 0947-6539
• Language: English
• Keywords: amidinates; nitrogen activation; iron; low oxidation state; structure elucidation