Mutzbauer Fabian, Korber Nikolaus
Institut für Anorganische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053 Regensburg, Germany.
Acta Crystallogr Sect E Struct Rep Online. 2011 Nov;67(Pt 11):m1551. doi: 10.1107/S1600536811041237. Epub 2011 Oct 22.
The crystal structure of the title compound, Rb(C(12)H(24)O(6))[Sb(7)]·4NH(3), fills the gap between the already known Zintl anion ammoniates {Cs(18-crown-6)Sb(7)}(2)·9NH(3) [Wiesler (2007 ▶). Dissertation, Universität Regensburg, Germany] and K(18-crown-6)Sb(7)·4NH(3) [Hanauer (2007 ▶). Dissertation, Universität Regensburg, Germany]. As in the two known compounds, the anti-mony cage anion in this crystal structure is coordinated by three alkali cations. The coordination spheres of each of the cations are saturated by 18-crown-6 mol-ecules. The ammonia mol-ecules of crystallization are situated between the crown ethers. The neutral, mol-ecular Rb(18-crown-6)Sb(7) units are inter-connected by multiple dipole-dipole interactions between ammonia and 18-crown-6.
标题化合物[Rb(C₁₂H₂₄O₆)]₃[Sb₇]·4NH₃的晶体结构填补了已知的Zintl阴离子氨合物{[Cs(18-冠-6)]₃Sb₇}₂·9NH₃[维斯拉（2007年▶）。德国雷根斯堡大学博士论文]和[K(18-冠-6)]₃Sb₇·4NH₃[哈瑙尔（2007年▶）。德国雷根斯堡大学博士论文]之间的差距。与这两种已知化合物一样，该晶体结构中的锑笼状阴离子由三个碱金属阳离子配位。每个阳离子的配位球被18-冠-6分子饱和。结晶的氨分子位于冠醚之间。中性分子[Rb(18-冠-6)]₃Sb₇单元通过氨与18-冠-6之间的多个偶极-偶极相互作用相互连接。
