Monomeric 16-Electron π-Diborene Complexes of Zn(II) and Cd(II)
Zitieren Sie bitte immer diese URN: urn:nbn:de:bvb:20-opus-153058
- Despite the prevalence of stable π-complexes of most d\(^{10}\) metals, such as Cu(I) and Ni(0), with ethylene and other olefins, complexation of d\(^{10}\) Zn(II) to simple olefins is too weak to form isolable complexes due to the metal ion's limited capacity for π-backdonation. By employing more strongly donating π- ligands, namely neutral diborenes with a high-lying π(B=B) or- bital, monomeric 16-electron M(II)-diborene (M = Zn, Cd) π- complexes were synthesized in good yields. Metal–B2 π- interactions in both the solid and solution stateDespite the prevalence of stable π-complexes of most d\(^{10}\) metals, such as Cu(I) and Ni(0), with ethylene and other olefins, complexation of d\(^{10}\) Zn(II) to simple olefins is too weak to form isolable complexes due to the metal ion's limited capacity for π-backdonation. By employing more strongly donating π- ligands, namely neutral diborenes with a high-lying π(B=B) or- bital, monomeric 16-electron M(II)-diborene (M = Zn, Cd) π- complexes were synthesized in good yields. Metal–B2 π- interactions in both the solid and solution state were confirmed by single-crystal X-ray analyses and their solution NMR and UV-vis absorption spectroscopy, respectively. The M(II) centers adopt a trigonal planar geometry and interact almost symmetrically with both boron atoms. The MB2 planes significantly twist out of the MX\(_2\) planes about the M-centroid(B–B) vector, with angles rang- ing from 47.0° to 85.5°, depending on the steric interactions be- tween the diborene ligand and the MX\(_2\) fragment.…
Autor(en): | Sunewang Rixin Wang, Merle Arrowsmith, Holger BraunschweigORCiD, Rian Dewhurst, Michael Dömling, James Mattock, Conor Pranckevicius, Alfredo Vargas |
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URN: | urn:nbn:de:bvb:20-opus-153058 |
Dokumentart: | Preprint (Vorabdruck) |
Institute der Universität: | Fakultät für Chemie und Pharmazie / Institut für Anorganische Chemie |
Sprache der Veröffentlichung: | Englisch |
Titel des übergeordneten Werkes / der Zeitschrift (Englisch): | Journal of the American Chemical Society |
Erscheinungsjahr: | 2017 |
Originalveröffentlichung / Quelle: | Journal of the American Chemical Society, 2017, 139 (31), pp 10661–10664 |
DOI: | https://doi.org/10.1021/jacs.7b06644 |
Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 5 Naturwissenschaften und Mathematik / 54 Chemie / 546 Anorganische Chemie |
Freie Schlagwort(e): | boron; diborene; transition metal complex |
Datum der Freischaltung: | 07.09.2017 |
EU-Projektnummer / Contract (GA) number: | 669054 |
OpenAIRE: | OpenAIRE |
Anmerkungen: | This is the pre-peer reviewed version of the following article: Journal of the American Chemical Society, 2017, 139 (31), pp 10661–10664, which has been published in final form at doi:10.1021/jacs.7b06644. |
Lizenz (Deutsch): | Deutsches Urheberrecht |