Crystal structure of ansa-Me2Si-(2Me-4-p-Tol-cyclopenta[b]indol-3-yl)2ZrCl2 and its catalytic properties in the polymerization of propylene

The structural diversity of heterocycle-fused potassium cyclopentadienides

“…The molecular structure of these compounds is poorly studied; to date, only a few dichlorozirconium ansa-complexes have been characterized by X-ray diffraction analysis. 10,17,[19][20][21][22][23][24] Obviously, these data do not reect the entire spectrum of possible metal-ligand interactions in catalytic species due to the predominantly covalent nature of bonding in neutral LZrCl 2 complexes.…”