摘要
A series of nickel（II） complexes have been synthesized and characterized. Molecular structure analysis exhibits that a square planar geometry around nickel is adopted. Upon activation with MAO, these nickel（II） complexes are efficient in catalyzing the ethylene dimerization, providing 1-butene with an activity of up to 1.4 ×10^7 g/（molohoatm）. The heteroatoms of the sidearm in the complexes were proved to have great impact on the activity and selectivity of 1-butene.
A series of nickel（II） complexes have been synthesized and characterized. Molecular structure analysis exhibits that a square planar geometry around nickel is adopted. Upon activation with MAO, these nickel（II） complexes are efficient in catalyzing the ethylene dimerization, providing 1-butene with an activity of up to 1.4 ×10^7 g/（molohoatm）. The heteroatoms of the sidearm in the complexes were proved to have great impact on the activity and selectivity of 1-butene.
