Stabilization of Pentaphospholes as η5 -coordinating Ligands. Stabilisierung von Pentaphospholen als η5-koordinierende Liganden
Riesinger, Christoph, Balazs, Gabor, Bodensteiner, Michael und Scheer, Manfred
(2020)
Stabilization of Pentaphospholes as η5 -coordinating Ligands. Stabilisierung von Pentaphospholen als η5-koordinierende Liganden.
Angewandte Chemie International Edition 59, S. 23879-23884.
Veröffentlichungsdatum dieses Volltextes: 25 Jan 2021 06:38
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.44577
Zusammenfassung
Electrophilic functionalisation of [Cp*Fe(eta(5)-P-5)] (1) yields the first transition-metal complexes of pentaphospholes (cyclo-P5R). Silylation of1with [(Et3Si)(2)(mu-H)][B(C6F5)(4)] leads to the ionic species [Cp*Fe(eta(5)-P5SiEt3)][B(C6F5)(4)] (2), whose subsequent reaction with H2O yields the parent compound [Cp*Fe(eta(5)-P5H)][B(C6F5)(4)] (3). The synthesis of a carbon-substituted ...
Electrophilic functionalisation of [Cp*Fe(eta(5)-P-5)] (1) yields the first transition-metal complexes of pentaphospholes (cyclo-P5R). Silylation of1with [(Et3Si)(2)(mu-H)][B(C6F5)(4)] leads to the ionic species [Cp*Fe(eta(5)-P5SiEt3)][B(C6F5)(4)] (2), whose subsequent reaction with H2O yields the parent compound [Cp*Fe(eta(5)-P5H)][B(C6F5)(4)] (3). The synthesis of a carbon-substituted derivative [Cp*Fe(eta(5)-P5Me)][X] ([X](-)=[FB(C6F5)(3)](-)(4 a), [B(C6F5)(4)](-)(4 b)) is achieved by methylation of1employing [Me3O][BF4] and B(C6F5)(3)or a combination of MeOTf and [Li(OEt2)(2)][B(C6F5)(4)]. The structural characterisation of these compounds reveals a slight envelope structure for the cyclo-P5R ligand. Detailed NMR-spectroscopic studies suggest a highly dynamic behaviour and thus a distinct lability for2and3in solution. DFT calculations shed light on the electronic structure and bonding situation of this unprecedented class of compounds.
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| Dokumentenart | Artikel | ||||
| Titel eines Journals oder einer Zeitschrift | Angewandte Chemie International Edition | ||||
| Verlag: | Wiley | ||||
|---|---|---|---|---|---|
| Ort der Veröffentlichung: | WEINHEIM | ||||
| Band: | 59 | ||||
| Seitenbereich: | S. 23879-23884 | ||||
| Datum | 2020 | ||||
| Institutionen | Chemie und Pharmazie > Institut für Anorganische Chemie > Lehrstuhl Prof. Dr. Manfred Scheer | ||||
| Identifikationsnummer |
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| Stichwörter / Keywords | INDEPENDENT CHEMICAL-SHIFTS; HALF-SANDWICH COMPLEXES; TRIPLE-DECKER COMPLEXES; METALLOCENE CATALYSTS; BASIS-SETS; X-RAY; COVALENT RADII; PENTAPHOSPHAFERROCENE; AROMATICITY; PHOSPHORUS; electrophilic functionalisation; iron; pentaphosphole; polyphosphorus ligands; protonation | ||||
| Dewey-Dezimal-Klassifikation | 500 Naturwissenschaften und Mathematik > 540 Chemie | ||||
| Status | Veröffentlicht | ||||
| Begutachtet | Ja, diese Version wurde begutachtet | ||||
| An der Universität Regensburg entstanden | Ja | ||||
| URN der UB Regensburg | urn:nbn:de:bvb:355-epub-445773 | ||||
| Dokumenten-ID | 44577 |
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