75982-54-6Relevant academic research and scientific papers
Synthesis and X-ray Structure of the Nickelabenzocyclopentene Complex . Reactivity Toward Simple, Unsaturated Molecules and the Crystal and Molecular Structure of the Cyclic Carboxylate
Carmona, Ernesto,Gutierrez-Puebla, Enrique,Marin, Jose M.,Monge, Angeles,Paneque, Margarita,at al.
, p. 2883 - 2891 (1989)
Facile cyclometalation to the nickelacyclopentene complex (1) occurs upon alkylation of NiCl2(PMe3)2 with 2 equiv of Mg(CH2CMe2Ph)Cl, in the presence of traces I(1-).Compound 1 has been fully characterized by spectroscopic and X-ray studies.Its
ALKYL AND ACYL DERIVATIVES OF NICKEL(II) CONTAINING TERTIARY PHOSPHINE LIGANDS
Carmona, Ernesto,Gonzalez, Francisco,Poveda, Manuel L.,Atwood, Jerry L.,Rogers, Robin D.
, p. 2108 - 2116 (1980)
The interaction of complexes (L=PMe3 or PMe2Ph) with Grignard reagents derived from Me2PhCCH2Cl and Me3SiCH2Cl yields thermally stable monoalkyl derivatives of the type , which, when L=PMe3, afford upon carbonylation at room temperature and pressure the corresponding acyls .Metathesis reactions with KX give and (X=Br, I, NCS, or NCO), while with Tl, and can be isolated.The synthesis of is also reported.The acyls, , readily carbonylate solutions of t he alkyl complexes, ,providing under certain conditions and in almost quantitative yields.Structures for the new compounds are proposed on the basis of i.r. and 1H NMR spectroscopic studies.Those of and have been confirmed by single-crystal X-ray determinations.Thus crystallizes in the monoclinic space group Pc with a=15.419(3),b=6.406(2),c=18.711(3) Angstroem, β=92.02(3)deg, Z=4, and R 0.031 based on 1 906 independent observed reflections.The phosphine ligands are trans in a square-planar arrangement.The complex belongs to the orthorhombic space group Pbca with a=12.668(3),b=21.312(4),c=28.925(4) Angstroem,Z=16, and R 0.049 for 1 394 independent observed reflections.The oxygen atom is not co-ordinated to the nickel atom .
