Influence of the nacnac Ligand in Iron(I)‐Mediated P4 Transformations |
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| Authors: | M Sc Fabian Spitzer Dr Christian Graßl Dr Gábor Balázs M Sc Eva M Zolnhofer Prof Dr Karsten Meyer Prof Dr Manfred Scheer |
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| Institution: | 1. Institut für Anorganische Chemie, Universit?t Regensburg, Regensburg, Germany;2. Friedrich-Alexander University Erlangen-Nürnberg (FAU), Department of Chemistry and Pharmacy, Inorganic Chemistry, Erlangen, Germany;3. http://www.uni‐regensburg.de/chemie‐pharmazie/anorganische‐chemie‐scheer/ |
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| Abstract: | A study of P4 transformations at low‐valent iron is presented using β‐diketiminato (L) FeI complexes LFe(tol)] (tol=toluene; L=L1 ( 1 a ), L2 ( 1 b ), L3 ( 1 c )) with different combinations of aromatic and backbone substituents at the ligand. The products (LFe)4(μ4‐η2:η2:η2:η2‐P8)] (L=L1 ( 2 a ), L2 ( 2 b )) containing a P8 core were obtained by the reaction of 1 a,b with P4 in toluene at room temperature. Using a slightly more sterically encumbered ligand in 1 c results in the formation of (L3Fe)2(μ‐η4:η4‐P4)] ( 2 c ), possessing a cyclo‐P4 moiety. Compounds 2 a – c were comprehensively characterized and their electronic structures investigated by SQUID magnetization and 57Fe Mössbauer spectroscopy as well as by DFT methods. |
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| Keywords: | Mö ssbauer spectroscopy paramagnetic compounds small-molecule activation substituent effects white phosphorus |
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