On the structure of lithium 2-(1-pyrrolidyl)ethoxide with benzyllithium

The structure of benzyllithium complexed with lithium 2–(1–pyrrolidyl)ethoxide was investigated by X-ray crystallographic analyses to afford (C4H8N–CH2CH2OLi)6·(C6H5CH2Li)2 structure of a doubly capped hexagonal prism with Ci symmetry of heavily distorted structure. The crystal structure of C4H8N–CH2CH2OLi was also examined to give the distorted hexagonal prism of hexamer with S6 symmetry.