108324-08-9Relevant academic research and scientific papers
The reactions of hexacarbonylvanadium with aromatic compounds. II. Reactions with polymethyl substituted hydrocarbons, naphthalene, and anisole
Calderazzo, Fausto
, p. 223 - 227 (1965)
By reaction of V(CO)6 with aromatic compounds at 35° some new complex cations [V(CO)4C6H6-nRn]+ have been prepared as the hexacarbonylvanadates. With highly substituted methylbenzenes the yields are 20-53%. The complex cation is characterized by two main infrared CO stretching bands, whose position depends on the nature and the number of the substituents Rn. In this series of compounds a correlation has been found to exist between the shift from the benzene derivative of the cationic CO stretching vibrations and ΔμRn, the group contribution to the dipole moment, calculated from the literature data for Cr(CO)3arene complexes.
The reaction of hexacarbonylvanadium with aromatic hydrocarbons
Calderazzo, Fausto
, p. 1207 - 1211 (1964)
Hexacarbonylvanadium reacts with benzene, toluene, p-xylene, and mesitylene to give the red crystalline [V(CO)4(arene)]-[V(CO)6]. The corresponding hexafluorophosphates and tetraphenylborates [V(CO)4(arene)]X (X = PF6-, [B(C6H5)4]-) have been prepared by metathetical reactions in tetrahydrofuran. The infrared spectra of these compounds in the CO stretching region are presented and a mechanism of formation of [V(CO)4(arene)][V(CO)6] is proposed. Copyricht 1964 by the American Chemical Society.
