45 research outputs found
Metal-promoted 1,3-sulphur shifts leading to novel metallocycles. X-Ray crystal and molecular structures of [WC(CF<sub>3</sub>)·C(CF <sub>3</sub>)·C(O)SMe(η<sup>5</sup>-C<sub>5</sub>H <sub>5</sub>)(CO)<sub>2</sub>] and [WC(CO<sub>2</sub>Me)C(CO<sub>2</sub>Me) ·C(O)SMe(η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)(CO)<sub>2</sub>]
No full textStabilization of vinylic intermediates in the addition, cyclization, and oligomerization reactions of alkynes by coordination of molybdenum and tungsten. The crystal and molecular structure of [W(SC6H4Me-p)[η2-C(CF3)C(CF3)PEt3] (η2-CF3C≡CCF3)(η-C5H5)] and [WCl[η2-C(CF3)C(CF3)CN](η2-CF3C≡CCF3)(η-C5H5)]
No full textNucleophilic attack of phosphines, phosphites or Me3CNC on the η2-CF3C≡CCF3 (L) complexes L2WBr2(CO) and L2MX(Cp) (Cp = η5-cyclopentadienyl; M = Mo, W, X = Cl, SC6F5; M = W, X = SC6H4Me-p) occurs at an acetylenic C atom to give 1:1 adducts. The products, I [X = SC6H4Me-p, L1 = PEt3 (II); X = Cl, L1 = Me3CNC (III)] were shown by x-ray diffraction to contain a metal-stabilized 1-3 dipolar vinyl ligand L+C(CF3)C-(CF3) η2-coordinated to the W center. The structures of II and III were refined to R 0.038, 0.040, for 2924, 6900 independent reflections, resp
Co-ordinatively unsaturated acetylene complexes of molybdenum and tungsten; the influence of a second metal on the cyclisation of co-ordinated acetylenes. X-ray crystal structure of [W(η<sup>5</sup>-C<sub>5</sub>H <sub>5</sub>){C(CF<sub>3</sub>) = C(CF<sub>3</sub>)C(CF<sub>3</sub>) = C(CF <sub>3</sub>)}(CO)<sub>2</sub>Co(CO)<sub>2</sub>]
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The crystal and molecular structure of dichloro-(bis-1,2-diphenylphosphinoethane)platinum(II)
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Triplet Energy Transfers in Electrostatic Host−Guest Assemblies of Unsaturated Organometallic Cluster Cations and Carboxylate-Containing Porphyrin Pigments
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THE SYNTHESIS AND CHARACTERIZATION OF BORANE(3) COMPLEXES OF 1,3-DI(TERTBUTYL)2,4-DIFLUORODIAZADIPHOSPHETIDINE. THE CRYSTAL AND MOLECULAR STRUCTURE OF THE BIS BORANE(3) COMPLEX
No full textPalladium and Platinum Complexes Containing the Linear Tetraphosphine Bis[((diphenylphosphino)ethyl)phenylphosphino]methane
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