Yadav, Ravi and Weber, Martin and Singh, Akhil K. and Muenzfeld, Luca and Gramueller, Johannes and Gschwind, Ruth M. and Scheer, Manfred and Roesky, Peter W. (2021) A Structural Diversity of Molecular Alkaline-Earth-Metal Polyphosphides: From Supramolecular Wheel to Zintl Ion. CHEMISTRY-A EUROPEAN JOURNAL, 27 (56). pp. 14128-14137. ISSN 0947-6539, 1521-3765
Full text not available from this repository. (Request a copy)Abstract
A series of molecular group 2 polyphosphides has been synthesized by using air-stable [Cp*Fe(eta(5)-P-5)] (Cp*=C5Me5) or white phosphorus as polyphosphorus precursors. Different types of group 2 reagents such as organo-magnesium, mono-valent magnesium, and molecular calcium hydride complexes have been investigated to activate these polyphosphorus sources. The organo-magnesium complex [((BDI)-B-Dipp-Mg(CH3))(2)] ((BDI)-B-Dipp={[2,6-(Pr2C6H3NCMe)-Pr-i](2)CH}(-)) reacts with [Cp*Fe(eta(5)-P-5)] to give an unprecedented Mg/Fe-supramolecular wheel. Kinetically controlled activation of [Cp*Fe(eta(5)-P-5)] by different mono-valent magnesium complexes allowed the isolation of Mg-coordinated formally mono- and di-reduced products of [Cp*Fe(eta(5)-P-5)]. To obtain the first examples of molecular calcium-polyphosphides, a molecular calcium hydride complex was used to reduce the aromatic cyclo-P-5 ring of [Cp*Fe(eta(5)-P-5)]. The Ca-Fe-polyphosphide is also characterized by quantum chemical calculations and compared with the corresponding Mg complex. Moreover, a calcium coordinated Zintl ion (P-7)(3-) was obtained by molecular calcium hydride mediated P-4 reduction.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SOLUBLE CALCIUM HYDRIDE; WHITE PHOSPHORUS; COORDINATION CHEMISTRY; P-4 ACTIVATION; FUNCTIONALIZATION; COMPLEXES; PENTAPHOSPHAFERROCENE; DIMERIZATION; REACTIVITY; ELEMENTS; alkaline earth metals; polyphosphides; supramolecular; small molecule activation; zintl ions |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer Chemistry and Pharmacy > Institut für Organische Chemie > Arbeitskreis Prof. Dr. Ruth Gschwind |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 18 Aug 2022 09:23 |
| Last Modified: | 18 Aug 2022 09:23 |
| URI: | https://pred.uni-regensburg.de/id/eprint/46734 |
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