Journalartikel

Jahr der Veröffentlichung: 2013

Seiten: 2774-2778

Zeitschrift: Journal of Inorganic and General Chemistry

Bandnummer: 639

Heftnummer: 15

ISSN: 0044-2313

DOI Link: https://doi.org/10.1002/zaac.201300425

Verlag: Wiley

Abstract: 
Searching for SCO compounds with tetradentate equatorial ligands suitable to surface attachment we decided to synthesize iron(II) complexes with the ligand o-bpy [o-bpy = 1,2-bis(2,2-bipyridyl-6-yl)ethane]. For coordination in axial position three different ligands with increasing ligand field strength were considered: isothiocyanate, pyridine, and imidazole. The new iron(II) complexes [Fe(o-bpy)(NCS)(2)], [Fe(o-bpy)(py)(2)](BPh4)(2), and [Fe(o-bpy)(im)(2)](BPh4)(2) were characterized with the help of Mossbauer spectroscopy, magnetic measurements, and X-ray crystallography. The Mossbauer data and magnetic susceptibility measurements show that all three synthesized compounds are in the high-spin state between 300 and 2 K. To explain these findings DFT calculations are employed. The experimental and theoretical results indicate the presence of distortions from octahedral symmetry due to steric restrictions imposed by the o-bpy ligand, which reduce its ligand-field strength, leading to the observed S = 2 ground states.

Harvard-Zitierstil: Schmidt, S., Kisslinger, S., Wurtele, C., Bonnet, S., Schindler, S. and Tuczek, F. (2013) Iron(II) Complexes Supported by a Tetradentate Ligand Providing a Strained Equatorial Coordination Environment: Geometric and Electronic-Structural Implications, Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry, 639(15), pp. 2774-2778. https://doi.org/10.1002/zaac.201300425

APA-Zitierstil: Schmidt, S., Kisslinger, S., Wurtele, C., Bonnet, S., Schindler, S., & Tuczek, F. (2013). Iron(II) Complexes Supported by a Tetradentate Ligand Providing a Strained Equatorial Coordination Environment: Geometric and Electronic-Structural Implications. Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry. 639(15), 2774-2778. https://doi.org/10.1002/zaac.201300425