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Synthesis and Characterization of Poly(hydrogen halide) Halogenates (–I)
Author(s) -
Voßnacker Patrick,
Steinhauer Simon,
Bader Julia,
Riedel Sebastian
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202001864
Subject(s) - halide , hydrogen halide , halogen , chemistry , raman spectroscopy , hydrogen bond , hydrogen , hydrogen fluoride , inorganic chemistry , ion , crystal structure , fluoride , characterization (materials science) , fluorine , crystallography , molecule , organic chemistry , materials science , nanotechnology , physics , alkyl , optics
Herein, we report the synthesis and characterization of a variety of novel poly(hydrogen halide) halogenates (−I). The bifluoride ion, which is known to have the highest hydrogen bond energy of ≈160 kJ mol −1 , is the most famous among many examples of [X(HX) n ] − anions (X=F, Cl) known in the literature. In contrast, little is known about poly(hydrogen halide) halogenates containing two different halogens, ([X(HY) n ] − ). In this work we present the synthesis of anions of the type [X(HY) n ] − (X=Br, I, ClO 4 ; Y=Cl, Br, CN) stabilized by the [PPh 4 ] + and [PPN] + cation. The obtained compounds have been characterized by single‐crystal X‐ray diffraction, Raman spectroscopy and quantum‐chemical calculations. In addition, the behavior of halide ions in hydrogen fluoride was investigated by using experimental and quantum‐chemical methods in order to gain knowledge on the acidity of hydrogen halides in HF.