Revision-DiboreneZinc-JACS.pdf (769.07 kB)
Monomeric 16-Electron p-Diborene Complexes of Zn(II) and Cd(II)
journal contribution
posted on 2023-06-09, 07:32 authored by Sunewang R Wang, Merle Arrowsmith, Holger Braunschweig, Rian D Dewhurst, Michael Dömling, James D Mattock, Conor Pranckevicius, Alfredo VargasAlfredo VargasDespite the prevalence of stable p-complexes of most d10 metals, such as Cu(I) and Ni(0), with ethylene and other olefins, complexation of d10 Zn(II) to simple olefins is too weak to form isolable complexes due to the metal ion's limited capacity for p-backdonation. By employing more strongly donating p-ligands, namely neutral diborenes with a high-lying p(B=B) orbital, monomeric 16-electron M(II)-diborene (M = Zn, Cd) p-complexes were synthesized in good yields. Metal–B2 p-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 MX2 planes about the M-centroid(B–B) vector, with angles ranging from 47.0° to 85.5°, depending on the steric interactions between the diborene ligand and the MX2 fragment.
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Publication status
- Published
File Version
- Accepted version
Journal
Journal of the American Chemical SocietyISSN
1520-5126Publisher
American Chemical SocietyExternal DOI
Issue
34Volume
139Page range
11629-12102Department affiliated with
- Chemistry Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2017-08-03First Open Access (FOA) Date
2018-07-26First Compliant Deposit (FCD) Date
2017-08-03Usage metrics
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