制备
六氟化锇可由金属锇与过量的氟气在300 °C下直接化合制得:[3]
性质
六氟化锇是一种黄色晶体,熔点为33.4 °C,沸点为47.5 °C。[1]在−140 °C是测得它的固态结构为正交晶系晶体,空间群为Pnma。晶胞参数a = 9.387 Å,b = 8.543 Å,而c = 4.944 Å。每个晶胞中有四个化学式单位的六氟化锇(这里是四个六氟化锇分子),密度则是5.09 g·cm−3。[2]
六氟化锇分子本身(气态或液态的主要存在形式)具有八面体空间构型,点群为Oh。其中Os–F键的键长为1.827 Å。[2]
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