Rhodium-mediated dehydrogenation of hydroboranes and group 14 compounds: base-stabilized silylene and germylene complexes vs. transmetalation
| dc.contributor.author | Hayes, Paul G. | |
| dc.contributor.author | Hsiang, Shou-Jen | |
| dc.date.accessioned | 2024-02-14T23:55:06Z | |
| dc.date.available | 2024-02-14T23:55:06Z | |
| dc.date.issued | 2024 | |
| dc.description | Open access article. Creative Commons Attribution Non-Commercial-NoDerivs 4.0 International license (CC BY-NC-ND 4.0 DEED) applies | |
| dc.description.abstract | Monocarbonyl rhodium complex LRh(CO), 1, which is stabilized by a pyrrole-based bis(phosphinimine) pincer ligand (L=k3- NNN’=2,5-[iPr2P=N(4-iPrC6H4)]2-N’(C4H2) ), serves as a versatile platform for the dehydrogenation of group 14 substrates. Reaction with primary and secondary silanes and germanes (MesSiH3, Et2SiH2, Ph2GeH2, tBuGeH3; Mes=mesityl) liberates H2 and yields base-stabilized tetrylene compounds of the form k2- L(CO)Rh(ER2) (E=Si: R=Mes, H, 2; R=Et, 5; E=Ge: R=Ph, 6; R= tBu, H, 8). The “:ER2” fragment in these species bridges between the rhodium center and a phosphinimine donor. Preliminary reactions between pinacol (Pin) and k2-L(CO)Rh(ER2), E=Si, Ge, indicate that such complexes can serve as silylene and germylene synthons, releasing :ER2 and catalytically generating PinER2. In contrast, combination of complex 1 and MesGeH3 does not yield the anticipated dehydrogenation product, but rather, transmetalation similar to that observed upon reaction between 1 and 3,5-dimethylphenylborane prevails. | |
| dc.description.peer-review | No | |
| dc.identifier.citation | Hsiang, S.-J., & Hayes, P. G. (2024). Rhodium-mediated dehydrogenation of hydroboranes and group 14 compounds: base-stabilized silylene and germylene complexes vs. transmetalation. Chemistry: A European Journal, 30(5), Article e20230430. https://doi.org/10.1002/chem.202304302 | |
| dc.identifier.uri | https://hdl.handle.net/10133/6687 | |
| dc.language.iso | en | |
| dc.publisher | Wiley | |
| dc.publisher.department | Department of Chemistry and Biochemistry | |
| dc.publisher.faculty | Arts and Science | |
| dc.publisher.institution | University of Lethbridge | |
| dc.publisher.url | https://doi.org/10.1002/chem.202304302 | |
| dc.subject | Dehydrogenation | |
| dc.subject | Germylene | |
| dc.subject | Rhodium | |
| dc.subject | Silylene | |
| dc.subject | Transmetalation | |
| dc.title | Rhodium-mediated dehydrogenation of hydroboranes and group 14 compounds: base-stabilized silylene and germylene complexes vs. transmetalation | |
| dc.type | Article |