Collect. Czech. Chem. Commun. 2007, 72, 629-636

New Complexes of Molybdenum(II) and Tungsten(II) with a C,N-Chelated Stannylene

Zdeňka Padělkováa, Ivana Císařováb, Karla Fejfarovác, Jana Holubováa, Aleš Růžičkaa,* and Jaroslav Holečeka

a Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, nám. Čs. legií 565, 532 10 Pardubice, Czech Republic
b Department of Inorganic Chemistry, Faculty of Natural Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic
c Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, 162 53 Prague 6, Czech Republic


Two new complexes of [Sn{2-[(CH3)2NCH2]C6H4}2] with [Mo(η5-C5H5)(CO)3Cl] and [W(η5-C5H5)(CO)3Cl], respectively, were prepared via insertion of stannylene into the Mo-Cl or W-Cl bond forming thus the transition metal-tin bond. These complexes were studied by IR, NMR and X-ray diffraction techniques. The tin atom in these complexes is five-coordinated with the carbon atoms of ligands and transition metal in equatorial plane and the chlorine and the nitrogen donor atoms in axial positions. The attempts to photolyse, reduce or fluorinate the prepared complexes and characterize the products of these reactions failed.

Keywords: Stannylene; C,N-ligand; Molybdenum; Tungsten; X-Ray diffraction; Stannanes; Organotin compounds; Half-sandwich complexes.

References: 20 live references.