Isolation of Neutral, Mono‐, and Dicationic B 2 P 2 Rings by Diphosphorus Addition to a Boron−Boron Triple Bond
| العنوان: | Isolation of Neutral, Mono‐, and Dicationic B 2 P 2 Rings by Diphosphorus Addition to a Boron−Boron Triple Bond |
|---|---|
| المؤلفون: | Rian D. Dewhurst, Felipe Fantuzzi, Tom E. Stennett, Ivo Krummenacher, Holger Braunschweig, Tobias Brückner, Bernd Engels |
| المصدر: | Angewandte Chemie International Edition. 60:13661-13665 |
| بيانات النشر: | Wiley, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | chemistry.chemical_classification, Diphosphorus, 010405 organic chemistry, Radical, chemistry.chemical_element, General Chemistry, 010402 general chemistry, Triple bond, 01 natural sciences, Catalysis, 0104 chemical sciences, Dication, chemistry.chemical_compound, Crystallography, chemistry, Radical ion, QD, Singlet state, Counterion, ddc:546, Boron |
| الوصف: | The NHC-stabilised diboryne (B\(_2\)(SIDep)\(_2\); SIDep=1,3-bis(2,6-diethylphenyl)imidazolin-2-ylidene) undergoes a high-yielding P−P bond activation with tetraethyldiphosphine at room temperature to form a B\(_2\)P\(_2\) heterocycle via a diphosphoryldiborene by 1,2-diphosphination. The heterocycle can be oxidised to a radical cation and a dication, respectively, depending on the oxidant used and its counterion. Starting from the planar, neutral 1,3-bis(alkylidene)-1,3-diborata-2,4-diphosphoniocyclobutane, each oxidation step leads to decreased B−B distances and loss of planarity by cationisation. X-ray analyses in conjunction with DFT and CASSCF/NEVPT2 calculations reveal closed-shell singlet, butterfly-shaped structures for the NHC-stabilised dicationic B\(_2\)P\(_2\) rings, with their diradicaloid, planar-ring isomers lying close in energy. |
| وصف الملف: | application/pdf |
| تدمد: | 1521-3773 1433-7851 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2e070a44b2bccbbd5442966db296f93 https://doi.org/10.1002/anie.202102218 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....c2e070a44b2bccbbd5442966db296f93 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15213773 14337851 |
|---|