Affiliation:
1. Institut für anorganische Chemie der Christian-A lbrechts-Universität, Olshausenstraße 40. D-2300 Kiel
Abstract
Abstract
On treatment of Na2B6H6 with halogens in aqueous alkaline solution, the hexahalogenoborates B6X6
2-, X = Cl, Br, I, are formed. Their octahedral structure is proved by 11B NMR spectroscopy. The chemical shifts in relation to BF3 · OEt2 increase within the series H (-13.5) < Cl (-17.4) < Br (-18.5) < I (- 27.5 ppm ). The IR and Raman spectra are assigned according to point group Oh. The internal vibrations of the B6-cage, observed in the range 750-1250 cm-1 at nearly unchanged positions, are distinguishable from vibrations mainly originating from motions of the X6-shell against the rigid B6-cluster.
Cited by
23 articles.
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1. Binding Properties of Small Electrophilic Anions [B6X5]− and [B10X9]− (X=Cl, Br, I): Activation of Small Molecules Based on π‐Backbonding;Chemistry – A European Journal;2023-11-14
2. Understanding the Electronic Structure and Stability of
B
n
X
n
0
/2–
(
n
= 4, 6; X = H, F, Cl, Br, I, At, Ts) Clusters
†;Chinese Journal of Chemistry;2021-05-24
3. Properties of gaseous closo-[B6X6]2− dianions (X = Cl, Br, I);Physical Chemistry Chemical Physics;2020
4. Improvement in hydrogen binding ability of closo-dicarboranes via functionalization and designing of extended frameworks;Journal of Molecular Modeling;2018-10-05
5. Synthesis and Applications of Perfunctionalized Boron Clusters;Inorganic Chemistry;2018-02-21