Titelangaben
Malassa, Astrid ; Schulze, Benjamin ; Stein-Schaller, Brigitte ; Görls, Helmar ; Weber, Birgit ; Westerhausen, Matthias:
Influence of N-Substitution on the Oxidation of 2-Pyridylmethylamines with Bis(trimethylsilyl)amides of Iron(III) : Synthesis of Heteroleptic Iron(II) 2-Pyridylmethylamides.
In: European Journal of Inorganic Chemistry.
Bd. 2011
(2011)
Heft 10
.
- S. 1584-1592.
ISSN 1099-0682
DOI: https://doi.org/10.1002/ejic.201001166
Abstract
The reaction of (thf)Fe[N(SiMe3)2]2Cl with (2-pyridylmethyl)(diphenylphosphanyl)amine (1) in hot tetrahydrofuran (THF) yields dinuclear [(ClFe)2{μ-N(SiMe3)2}{Ph2P(NCH2Py)2}] (2) and [ClFe{Ph2P(O)-NCH2Py}]2 (3) with the oxygen atom stemming from THF degradation. The formation of 2 requires a P–N bond cleavage and reformation leading to the tetradendate diphenyl-bis(2-pyridylmethylamido)phosphonium ion. If this reaction of (thf)Fe[N(SiMe3)2]2Cl with 1 is performed at room temperature, no P–N bond cleavage is observed. Instead of that, ether degradation occurs yielding [Fe4(μ4-O)(μ2-Cl)2(Ph2P-NCH2Py)4] (4) with a central oxygen-centered iron tetrahedron as well as complex 3. Recrystallization of 3 from dichloromethane leads to addition of HCl and to the formation of [FeCl2·{Ph2P(O)-N(H)-CH2Py}] (5). The phosphonium ion of 2 is isoelectronic to the corresponding diphenyl-bis(2-pyridylmethylamino)silane (6). Lithiation of 6 followed by a metathetical reaction with (thf)2FeCl2 yields the trinuclear complex [Fe3Cl2{Ph2Si(NCH2Py)2}2] (7) with antiferromagnetic interactions.
Weitere Angaben
Publikationsform: | Artikel in einer Zeitschrift |
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Begutachteter Beitrag: | Ja |
Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Professur Anorganische Chemie IV > Professur Anorganische Chemie IV - Univ.-Prof. Dr. Birgit Weber Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Professur Anorganische Chemie IV |
Titel an der UBT entstanden: | Nein |
Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
Eingestellt am: | 27 Jul 2017 11:54 |
Letzte Änderung: | 27 Jul 2017 11:54 |
URI: | https://eref.uni-bayreuth.de/id/eprint/38832 |