Portal de Periódicos da CAPES

Crystal and molecular structure of [IrP{(OC6H3Me)2(OC6H4Me)}Cl(γ-picoline)2] formed by the ortho-cyclometallation of two ortho-tolyl groups on a single tri-ortho-tolylphosphite ligand

1977; Elsevier BV; Volume: 142; Issue: 3 Linguagem: Inglês

10.1016/s0022-328x(00)88353-9

1872-8561

Magriet J. Nolte, Eric Singleton, Erwin van der Stok,

Metal complexes synthesis and properties

The title molecule crystallizes in the monoclinic space group P21/c with a 9.12(2), b 17.36(2), c 20.65(2)Åand β 90.5(1)°. The structure was solved by Patterson and Fourier methods and refined by least-squares, using 2583 reflections, to R 0.04. The structure consists of independent monomeric units. The iridium atom is in a distorted octahedral environment with one phosphorus, two ortho carbon atoms of two o-tolyl groups, one chloride ion and two nitrogens from two γ-picoline ligands occupying the octahedral positions. Metal—ligand bond lengths observed are IrCl 2.44, IrP 2.14, IrC 2.04 and 2.05, and IrN 2.17 and 2.17Å. Bond angles related to the chelate rings are discussed as are other relevant parameters in the structure.