Me<sub>2</sub>Si(C<sub>5</sub>Me<sub>4</sub>)<sub>2</sub>Cr:  Synthesis and Crystal Structure of a Ligand-Free <i>a</i><i>nsa</i>-Chromocene Frank Schaper Olaf Wrobel Ralf Schwörer Hans-Herbert Brintzinger 10.1021/om049901x.s002 https://acs.figshare.com/articles/dataset/Me_sub_2_sub_Si_C_sub_5_sub_Me_sub_4_sub_sub_2_sub_Cr_Synthesis_and_Crystal_Structure_of_a_Ligand_Free_i_a_i_i_nsa_i_Chromocene/3333655 Me<sub>2</sub>Si(C<sub>5</sub>Me<sub>4</sub>)<sub>2</sub>Cr, the first example of an <i>ansa</i>-chromocene containing no additional ligands at chromium, was synthesized from Me<sub>2</sub>Si(C<sub>5</sub>Me<sub>4</sub>)<sub>2</sub>Li<sub>2</sub> and CrCl<sub>2</sub>(THF)<i><sub>x</sub></i> in the presence of 2,6-xylyl isocyanide. The crystal structure of the complex was determined. The complex is paramagnetic and does not coordinate phosphines, phosphites, nitriles, amines, or acetylenes, but it reacts readily with 2,6-xylyl isocyanide to give mono- and diisocyanide complexes. 2004-07-05 00:00:00 Crystal Structure 2 Cr THF crystal structure CrCl 2 diisocyanide complexes xylyl Si 2 Li 2