The first non‐pincer‐type mononuclearscandiumalkylidenecomplexes were synthesized and structurally characterized. These complexes exhibited short Sc−C bond lengths and even one of the shortest reported to date (2.1134(18) Å). The multiple character of the Sc−C bond was highlighted by a DFT calculation. This was confirmed by experimental reactivity study where the complex underwent [2+1] cycloaddition
Substitution Effects on the Formation of T-Shaped Palladium Carbene and Thioketone Complexes from Li/Cl Carbenoids
作者:Sebastian Molitor、Kai-Stephan Feichtner、Claudia Kupper、Viktoria H. Gessner
DOI:10.1002/chem.201304927
日期:2014.8.18
contrast, insufficient charge stabilization results in the transfer of the sulfur of the thiophosphoryl moiety and thus in the formation of a thioketonecomplex. While the thioketones are stable compounds the carbenecomplexes are revealed to be highly reactive and decompose under elimination of Pd metal. Computational studies revealed that both complexes are formed by a substitution mechanism. While
作者:Sebastian Molitor、Kai-Stephan Feichtner、Viktoria H. Gessner
DOI:10.1002/chem.201605592
日期:2017.2.21
room‐temperature‐stable fluorine carbenoid. Spectroscopic, as well as DFT studies confirmed the pronounced carbenoid character, showing M‐F‐C interactions with elongated C−F bonds. The different stabilities of the carbenoids was found to originate from the different strength of the M–F interaction. Hence, the lithium compounds are considerably more reactive than their heavier congeners. Reactivity studies