Carbonyltungsten(0) complexes of acryloylferrocene: Synthesis and characterization

Boga D. A., Ozkar S.

JOURNAL OF ORGANOMETALLIC CHEMISTRY, cilt.691, sa.15, ss.3293-3297, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 691 Sayı: 15
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1016/j.jorganchem.2006.04.003
  • Dergi Adı: JOURNAL OF ORGANOMETALLIC CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.3293-3297
  • Anahtar Kelimeler: tungstencarbonyl, acryloylferrocene, trimethylphosphite, photolysis, substitution, PHOTOCHEMICAL-SYNTHESIS, PHOTOINDUCED HYDROGENATION, CONJUGATED DIENES, PHOTOCATALYTIC HYDROGENATION, CHROMIUM, ISOMERIZATION, MECHANISM, 1,4-HYDROSILATION, (E)-CYCLOOCTENE, CR(CO)5(C2H4)
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Photolysis of hexacarbonyltungsten(0) in the presence of acryloylferrocene in n-hexane solution at 10 C yields pentacarbonyl(eta(2)-acryloylferrocene)tungsten(0) (1) as the only photo-substitution product, different from the general reaction pattern observed for the Group 6 metal carbonyls with other olefins. W(CO)5(eta(2)-acryloylferrocene) (1) decomposes in solution to the parent hexacarbonyltungsten(0) and free acryloylferrocene. Trimethylphosphite was introduced as ligand into the molecule to increase the stability. The photolysis of pentacarbonyl(trimethylphosphite)tungsten(0) in the presence of acryloylferrocene in n-hexane solution at 10 degrees C yields only Cis-W(CO)(4)[P(OCH3)(3)](eta(2)-acryloylferrocene) (2) as the monosubstitution product. Both eta(2)-acryloylferrocene complexes (1 and 2) could be isolated and characterized by MS, IR and NMR spectroscopy. The trimethylphosphite complex (2) is found to be even less stable than W(CO)(5)( eta(2)-acryloylferrocene) (1). (c) 2006 Elsevier B.V. All rights reserved.