2014
DOI: 10.1002/chem.201404505
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Abstract: An unprecedented diversity of high-order bromine catenates (anionic polybromides) was generated in a tetraalkylphosphonium-based room temperature ionic liquid system. Raman spectroscopy was used to identify polybromide monoanions ranging from [Br5 ](-) to [Br11 ](-) in the bulk solution, while single-crystal X-ray diffraction identified extended networks of linked [Br11 ](-) units, forming a previously unknown polymeric [Br24 ](2-) dianion. This represents the largest polybromide species identified to date. In… Show more

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Cited by 49 publications
(91 citation statements)
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“…Intriguing examples for the utilization of halogens are the polybromides synthesized in ILs [43,69,70,71,72]. While polyiodides were known with up to 29 iodine atoms [73], the size of the corresponding polybromides was limited to a maximum of 10 atoms [74,75] before new approaches including ILs (Feldmann group) were developed [76].…”
Section: Polyanionsmentioning
confidence: 99%
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“…Intriguing examples for the utilization of halogens are the polybromides synthesized in ILs [43,69,70,71,72]. While polyiodides were known with up to 29 iodine atoms [73], the size of the corresponding polybromides was limited to a maximum of 10 atoms [74,75] before new approaches including ILs (Feldmann group) were developed [76].…”
Section: Polyanionsmentioning
confidence: 99%
“…Moreover, the reactivity of the lighter halogens necessitates a chemically stable environment, which can be provided by ILs due to their high redox stability [78]. The use of ILs lead to the isolation of several new polybromides: [P(Ph 3 )Br][Br 7 ] [69] ([P(Ph 3 )Br] = triphenylphosphine bromide), [P(Bz)(Ph) 3 ] 2 [Br 8 ] [69], [HMIm][Br 9 ] [70], [N(n-Bu) 3 Me] 2 [Br 20 ] [69], [C 4 MPyr] 2 [Br 20 ] [43,69], and [P 4444 ] 2 [Br 24 ] (Figure 1) [71]. The anion of [C 4 MPyr] 2 [Br 20 ] was regarded as the bromine-richest species (aside from the element itself) at its discovery by Wolff et al [43].…”
Section: Polyanionsmentioning
confidence: 99%
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