in pentane byproducts: CO; Irradiation (UV/VIS); irradn. of a soln. of W(CO)6 and cyclooctatetraene with a Hg lamp undernitrogen atmosphere at 258 K for 5 h; filtn., removal of the solvent and excess C8H8, column chromy., concg. and cooling of the eluate, drying in high vacuum, elem. anal.;

in pentane byproducts: CO; Irradiation (UV/VIS); irradn. of a soln. of W(CO)6 and cyclooctatetraene with a Hg lamp undernitrogen atmosphere at 258 K for more than 5 h; filtn., removal of the solvent and excess C8H8, column chromy., concg. and cooling of the eluate, drying in high vacuum, elem. anal.;