An X-ray structural determination of the dimer [Li(Ph4P2N4Ph)·THF]2(THF = tetrahydrofuran) reveals a step-shaped structure; 7Li and 31P NMR investigations of [Li(Ph4P2N4S2R)·THF]2(R = Me, But, Ph), as a function of temperature and concentration, in THF solution show that this dimer is fluxional and indicate the presence of a second dimeric species.
对二聚体[Li(Ph4P2N4Ph)-THF]2(THF =
四氢呋喃)进行的 X 射线结构测定显示出一种阶梯形结构;在 THF 溶液中对[Li(Ph4P2N4S2R)-THF]2(R = Me、But、Ph)进行的 7Li 和 31P NMR 研究表明,这种二聚体具有通性,并表明存在第二种二聚体。