| abstract |
An object of the present invention is to provide a silicon-bridged Cp-Ar transition metal complex that serves as a catalytic component capable of efficiently and highly selectively producing 1-hexene through the trimerization reaction of ethylene. The present invention provides a transition metal ion complex represented by any of formulae (1-1) to (1-3), etc.: wherein M represents a transition metal atom of Group 4 of the Periodic Table of the Elements; A represents a counter anion; R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , R 19 , R 20 , R 21 , X 1 and X 2 each independently represent a hydrogen atom or the like; R 10 and R 11 each independently represent a hydrogen atom or the like. |