Abstract
Conversions of organoelement diamides, Ar DippE(NMe 2) 2 (E=Sb, Bi; Ar Dipp=C 6H 3-2,6-Dipp 2), with Ph 2SnH 2 as reducing agent gave access to low-valent, heavier group 15 dimers Ar DippSb=SbAr Dipp and Ar DippBi=BiAr Dipp, while only readily removable byproducts (i. e. dihydrogen, amines) and cyclo-(Ph 12Sn 6) are generated during the reaction. Moreover, experiments involving the reaction of organoantimony hydride species Ar* 2SbH (Ar*=C 6H 2-2,6-(Ph 2CH) 2-4-iPr) with Bi(NEt 2) 3 yielded a second novel distibene, Ar*Sb=SbAr*, with the currently longest Sb−Sb bond distance of 2.8605(5) Å in a distibene. In conversions of TbbSnH 3 (Tbb=C 6H 2-2,6-(CH(SiMe 3) 2) 2-4-tBu) with Bi(NEt 2) 3, ligand migration resulted in the isolation of TbbBi=BiTbb. Remarkably, the herein reported novel inorganic coupling route enables preparation and isolation of heavier dipnictenes without the formation of inorganic salts. All four low-oxidation state compounds were isolated and subsequently characterized using state of the art techniques, i. e. X-ray crystallography, NMR and UV/Vis spectroscopy.
Original language | English |
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Article number | e202300586 |
Number of pages | 8 |
Journal | European Journal of Inorganic Chemistry |
Volume | 27 |
Issue number | 10 |
Early online date | 20 Dec 2023 |
DOIs | |
Publication status | Published - 2 Apr 2024 |
Keywords
- Main group chemistry
- P-block elements
- Single crystal X-ray diffraction
- NMR spectroscopy
- Antimony
- Bismuth
- X-ray diffraction
- Hydrides
- Main-group elements
ASJC Scopus subject areas
- Inorganic Chemistry