Tellurium-Centered Bent Allenes: Synthesis, Characterization, and Reactivity.
Inorg Chem
; 61(44): 17641-17645, 2022 Nov 07.
Article
em En
| MEDLINE
| ID: mdl-36280837
ABSTRACT
Compounds with multiple bonds between elements of the second and fifth periods are extremely unstable, and systematic investigations into their properties remain elusive. Herein, we report a tellurium-centered heteroallene that contains multiple bonds between carbon and tellurium. This compound is the first example of bis(methylene)-λ4-tellane, which was synthesized and fully characterized using multinuclear NMR spectroscopy and X-ray crystallography. In the solid state, this λ4-tellane exhibits a bent allene structure for the CâTeâC moiety and unsaturated Te-C bonds. Interestingly, the allene-type structure is retained in the solution, which is reflected in an absorption band due to the π-π* transition at 610 nm. This λ4-tellane also exhibits unique reactivity toward dihalogermylenes, which yielded rare cyclic telluragermetanes.
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MEDLINE
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En
Ano de publicação:
2022
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Article