ethene; [2-(1-methylethoxy-κO)phenylmethyl-κC](nitrato-κO,κO′){rel-(2R,5R,7S)-tricyclo[3.3.1.13,7]decane-2,1-diyl[3-(2,4,6-trimethylphenyl)-1-imidazolidinyl-2-ylidene]}ruthenium in tetrahydrofuran T=35°C; P=3800.26 Torr; 6 h; Sealed tube;