The design and application of late transition metal complexes as olefin polymerization catalysts have made tremendous progress in recent years. The advantage of using late transition metal complexes is that they can tolerate a variety of functional groups. We have developed a series of P-N and P-N-P ligands. By using excess n-BuLi to deprotonate H[2b], H[2c] and H[4], we obtained Li[2b](THF)2, Li[2c](THF)2 and Li[4](THF)2 successfully. Li[2b](THF)2 was confirmed by X-ray single crystal diffraction. Using Li[2b](THF)2 as starting material, reacted with 1 eqiv. benzyl chloride and 1 eqiv. Ni(COD)2 in ether solution result in the clean formation of [2b]Ni(CH2Ph).