separation is much longer than the remaining two Ru−C(allyl) distances. The DMF and acetonitrile ligands are shown to exchange on the NMR time scale via both variable-temperature and 2-D exchange spectroscopy. Pulsed gradient spin−echo (PGSE) diffusion and 1H,19F HOESY NMR methods show that there is relatively little ion pairing in these salts in DMF and acetonitrile solutions. The PF6 anions take up specific
新的
钌(IV)烯丙基配合的[Ru(CP *)
氯(
DMF)(η 3 -CH 2 -CH-CHPh配合)](PF 6)(图2b)和的[Ru(CP *)
氯(叔BuCN) (η 3 -CH 2 -CH-CHPh配合)](PF 6)(图2c)已经制备和它们的结构来确定。这些结果与用于的[Ru(CP *)
氯(CH类似的X射线数据进行比较3 CN)(η 3 -CH 2 -CH-CHPh配合)](PF 6),的[Ru(CP *)OC( OT-卜)O}(η 3 -CH 2 -CH-CHPh配合)](PF 6),的[Ru(CP *)(CH 3 CN)2(η 3 -CH 2-CH-CHPh配合)](PF 6)2,和的[Ru(CP *)(
DMF)2(η 3 -CH 2 -CH-CHPh配合)](PF 6)2。在所有的结构中,RU - ((η 3 -CH 2 -CH-CHPh配合)部分显着失真,使得Ru基器CPh