Di-tert-butyldiphosphatetrahedrane as a Source of 1,2-Diphosphacyclobutadiene Ligands

Hierlmeier, Gabriele and Coburger, Peter and Scott, Daniel J. and Maier, Thomas M. and Pelties, Stefan and Wolf, Robert and Pividori, Daniel M. and Meyer, Karsten and van Leest, Nicolaas P. and de Bruin, Bas (2021) Di-tert-butyldiphosphatetrahedrane as a Source of 1,2-Diphosphacyclobutadiene Ligands. CHEMISTRY-A EUROPEAN JOURNAL, 27 (60). pp. 14936-14946. ISSN 0947-6539, 1521-3765

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Abstract

Reactions of di-tert-butyldiphosphatetrahedrane (1) with cycloocta-1,5-diene- or anthracene-stabilised metalate anions of iron and cobalt consistently afford complexes of the rarely encountered 1,2-diphosphacyclobutadiene ligand, which have previously been very challenging synthetic targets. The subsequent reactivity of 1,2-diphosphacyclobutadiene cobaltates toward various electrophiles has also been investigated and is compared to reactions of related 1,3-diphosphacyclobutadiene complexes. The results highlight the distinct reactivity of such isomeric species, showing that the 1,2-isomers can act as precursors for previously unknown triphospholium ligands. The electronic structures of the new complexes were investigated by several methods, including NMR, EPR and Mossbauer spectroscopies as well as quantum chemical calculations.

Item Type: Article
Uncontrolled Keywords: POST TRANSITION-METALS; HETEROPOLYATOMIC ANIONS; PHOSPHAALKYNE COMPLEXES; INTERMETALLOID CLUSTERS; CRYSTAL-STRUCTURES; RING CONTRACTION; COVALENT RADII; BUILDING-BLOCK; ZINTL IONS; PHOSPHORUS; phosphatetrahedranes; phosphaalkyne oligomers; phosphorus; iron; cobalt
Subjects: 500 Science > 540 Chemistry & allied sciences
Divisions: Chemistry and Pharmacy > Institut für Anorganische Chemie > Arbeitskreis Prof. Dr. Robert Wolf
Depositing User: Dr. Gernot Deinzer
Date Deposited: 23 Aug 2022 05:31
Last Modified: 23 Aug 2022 05:31
URI: https://pred.uni-regensburg.de/id/eprint/46818

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