97349-77-4Relevant academic research and scientific papers
Synthesis of (η6-arene)2Cr2(CO)3 Complexes Containing a Formal CrCr Triple Bond Starting from η6-areneCr(CO)2NCCH3
Kluefers, Peter,Knoll, Lothar,Reiners, Christiane,Reiss, Karl
, p. 1825 - 1835 (2007/10/02)
The photochemical reaction of η6-ArCr(CO)3 (Ar = benzene, toluene, m-xylene, mesitylene, methyl benzoate, and fluorobenzene) with acetonitrile in hexane or p-tolunitrile in THF, resp., yields complexes η6ArCr(CO)2NCR (1-10).Solutions of the red acetonitrile complexes yield on warming or UV photolysis by dissoziation of the nitrile and one CO ligand in the presence of benzene the new black coordination compounds (η6-Ar)2Cr2(CO)3 (11-16).The spectra and an X-ray structure determination of the benzene derivative 11 verify a Cr2-unit with a formal triple bond bridged by three CO ligands.The asymmetric unit of 11 contains two halves of molecules with Cr-Cr distances of 222.6 and 221.6 pm.
