Synthesis and Spectroscopic Studies of Pentacarbonylfumaronitrile-chromium(0),-molybdenum(0), and -tungsten(0)

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Atıf İçin Kopyala

Mour Ï. A., ÖZKAR S., Kreiter C. G.

Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences, cilt.49, sa.8, ss.1059-1062, 1994 (Scopus)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 49 Sayı: 8
• Basım Tarihi: 1994
• Doi Numarası: 10.1515/znb-1994-0808
• Dergi Adı: Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences
• Derginin Tarandığı İndeksler: Scopus
• Sayfa Sayıları: ss.1059-1062
• Anahtar Kelimeler: Carbonyl, Chromium, Fumaronitrile Complexes, Molybdenum, Tungsten
• Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Photolysis of hexacarbonyl-chromium(0), -molybdenum(0), and -tungsten(0) in presence of fumaronitrile yields at room tem perature pentacarbonyl-fumaronitrile-chromium(0)(1), -molybdenum(0) (2), and -tungsten(O) (3). The complexes were purified by crystallization and characterized by IR and 13C-NMR spectroscopy. The fumaronitrile ligand is bonded to the M(CO)5 moiety by one nitrile nitrogen atom rather than by the carbon-carbon double bond. In toluene 2 dissociates into fumaronitrile and pentacarbonyl-molybdenum(0), which is stabilized by the solvent. Fumaronitrile and solvated pentacarbonyl-molybdenum(0) exist in solution together with 2 in an equilibrium which lies in favour of the former species. © 1994, Walter de Gruyter. All rights reserved.