38113-02-9Relevant academic research and scientific papers
Rubidium-mediated birch-type reduction of 1,2-diphenylbenzene in tetrahydrofuran
Krieck, Sven,Kretschmer, Robert,Goerls, Helmar,Westerhausen, Matthias
scheme or table, p. 6960 - 6963 (2011/06/19)
The reaction of 1,2-diphenylbenzene with rubidium metal in THF yields extremely sensitive and pyrophoric [η5-{1,2-diphenyl-2,5- cyclohexadienyl}rubidium]∞ (1). Compound 1 characterizes a possible intermediate in a Birchtype reaction and represents a very rare example of a fully characterized organorubidium complex as well as an open main-group metal pentadienide as part of a six-membered ring. In the solid state the rubidium atoms interact with the cyclohexadienyl moiety, whereas the coordination sphere of the soft cation is additionally stabilized exclusively by several metal π-arene interactions despite the presence of strongly coordinating donors. The bonding situation was elucidated by MP2/def2-TZVPP calculations including population analysis.
