53261-74-8Relevant academic research and scientific papers
Photo-reversible isomerisation of trans- to cis-[W(CO)4(η2-alkene)2] complexes in low-temperature matrices
Szymanska-Buzar,Jaroszewski,Downs,Greene,Morris
, p. 207 - 216 (2007/10/03)
Reversible isomerisation of trans- to cis-[W(CO)4(η2-alkene)2] complexes has been induced in argon matrices at low temperatures under the action of selective irradiation. UV photolysis (λ ≈ 313nm) of trans-[W(CO)4(η2-alkene)2] (alkene = cyclopentene or 1-pentene) in an argon matrix at 16 K results in formation of the cis isomer as the primary photoprocess. The isomerisation is reversed under the action of visible light (λ ≈ 445nm). Species such as [W(CO)4(alkene)(Ar)] are also formed in small concentrations. Experiments involving annealing, selective photolysis and the use of CO- or alkene-doped matrices have been performed to investigate the mechanism of the photo-isomerisation process. These studies suggest a dissociative mechanism via expulsion of the alkene ligand.
GROUP VIA METAL PENTACARBONYL COMPLEXES OF 2- AND 4-VINYLPYRIDINE AND THEIR COPOLYMERS. PREPARATION, SPECTROSCOPIC CHARACTERISATION AND PHOTOCHEMICAL PROPERTIES
Kelly, John M.,Long, Conor
, p. 315 - 326 (2007/10/02)
M(CO)5(4-VP) (M = Cr, Mo, or W) and M(CO)5(2-VP) (M = Cr, W), prepared from the reaction of M(CO)5(EtOH) and 2-vinylpyridine (2-VP) or 4-vinylpyridine (4-VP), have been characterised by IR, 1H NMR, and UV/visible absorption spectroscopy.Copolymers of M(CO
