Affiliation:
1. Institute of Inorganic Chemistry Graz University of Technology Stremayrgasse 9/V 8010 Graz Austria
2. Institute of Chemistry and Technology of Materials Graz University of Technology Stremayrgasse 9/V 8010 Graz Austria
Abstract
AbstractConversions of organoelement diamides, ArDippE(NMe2)2 (E=Sb, Bi; ArDipp=C6H3‐2,6‐Dipp2), with Ph2SnH2 as reducing agent gave access to low‐valent, heavier group 15 dimers ArDippSb=SbArDipp and ArDippBi=BiArDipp, while only readily removable byproducts (i. e. dihydrogen, amines) and cyclo‐(Ph12Sn6) are generated during the reaction. Moreover, experiments involving the reaction of organoantimony hydride species Ar*2SbH (Ar*=C6H2‐2,6‐(Ph2CH)2‐4‐iPr) with Bi(NEt2)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 TbbSnH3 (Tbb=C6H2‐2,6‐(CH(SiMe3)2)2‐4‐tBu) with Bi(NEt2)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.
Funder
Österreichischen Akademie der Wissenschaften
Cited by
1 articles.
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