single crystals of K4[Ti8F36]·8HF and Rb4[Ti8F36]·6HF (Shlyapnikov, I. M.; et al. Chem. Commun. 2013, 49, 2703) leads to the formation of [Ti2F9]− (Rb) and [Ti6F27]3– (K, Rb) salts. The former displays the same ([Ti2F9]−)∞ double chain as in Na[Ti2F9]·HF, while the anionic part in the latter, ([Ti6F27]3–)∞, represents the first example of a three-dimensional network built of TiF6 octahedra. The ([Ti6F27]3–)∞
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水氟化氢中AF(A = Li,Na,K,Rb,Cs)和TiF 4(起始n(AF):n(TiF 4)摩尔比为3:1至1:3)之间的反应产生[TiF 6 ] 2–,[TiF 5 ] -,[Ti 4 F 19 ] 3–,[Ti 2 F 9 ] -和[Ti 6 F 27 ] 3–盐。与A的例外2的TiF 6的化合物,其由A的+阳离子和八面体[的TiF6 ] 2–阴离子,所有这些材料均来自TiF 6单元的缩合。A [TiF 5 ](A = K,Cs)和A [TiF 5 ]·HF(A = Na,K,Rb)的晶体结构中的阴离子部分由无限([TiF 5 ] -)∞链组成由TiF 6八面体共享关节顶点构成。每个结构显示([TiF 5 ] -)∞链的几何形状略有不同。Na [Ti 2 F 9 ]·HF的晶体结构由聚合物([Ti 2 F 9 ] -)∞显示为两个平行的无限锯齿链包含的TiF阴离子6单元,其中每个的TiF