Stabilisierung eines Blausäure‐Dimers mit einer Lewis‐Säure

Bläsing, Kevin; Bresien, Jonas; Labbow, René; Schulz, Axel; Villinger, Alexander

doi:10.1002/ange.201804193

Cited by 15 publications

(1 citation statement)

References 71 publications

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“…[PPN]Br. [34] [PPN]I, [35] [PPh 4 ][ClO 4 ] [36] and HCN [37] were prepared according to literature procedures. All salts were dried in vacuo at 100 8Cf or 10 min prior to use.…”

Section: Methodsmentioning

confidence: 99%

Synthesis and Characterization of Poly(hydrogen halide) Halogenates (–I)

Voßnacker

Steinhauer

Bader

et al. 2020

Chemistry A European J

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Herein, we report the synthesis and characterization of av ariety of novel poly(hydrogen halide) halogenates (ÀI). The bifluoride ion, which is knownt oh avet he highest hydrogen bond energy of % 160 kJ mol À1 ,i st he most famousa mong many exampleso f[ X(HX) n ] À 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 ] À). In this work we presentt he synthesis of anions of the type [X(HY) n ] À (X = Br,I ,C lO 4 ;Y= Cl,B r, CN) stabilized by the [PPh 4 ] + and [PPN] + cation. The obtained compounds have been characterizedb ys ingle-crystal X-ray diffraction, Raman spectroscopy and quantum-chemical calculations.I na ddition,t he behavior of halidei ons in hydrogen fluoride wasi nvestigated by using experimental and quantum-chemical methodsi no rder to gain knowledge on the acidity of hydrogen halides in HF. Scheme1.Synthetic routes for the synthesis of poly(hydrogen halide) halogenates (ÀI).

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“…[PPN]Br. [34] [PPN]I, [35] [PPh 4 ][ClO 4 ] [36] and HCN [37] were prepared according to literature procedures. All salts were dried in vacuo at 100 8Cf or 10 min prior to use.…”

Section: Methodsmentioning

confidence: 99%

Synthesis and Characterization of Poly(hydrogen halide) Halogenates (–I)

Voßnacker

Steinhauer

Bader

et al. 2020

Chemistry A European J

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Investigation of the Locked‐Unlocked Mechanism in Living Anionic Polymerization Realized with 1‐(Tri‐isopropoxymethylsilylphenyl)‐1‐phenylethylene

Liu

Han

et al. 2018

Angewandte Chemie

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Reported is an intriguing advance in living anionic polymerization (LAP) by a “locked‐unlocked” mechanism in which the living anionic species can be quantitatively locked by end‐capping with 1‐(tri‐isopropoxymethylsilylphenyl)‐1‐phenylethylene (DPE‐Si(O‐iPr)3) and can be unlocked by adding the key, sodium 2,3‐dimethylpentan‐3‐olate (NaODP). These new insights into this mechanism were carefully confirmed by designing reactions involving sequential feeding of quantitative DPE‐Si(O‐iPr)3 and traditional monomers mixed with NaODP, and subsequently characterizing the corresponding samples, taken during the feeding process, by GPC, NMR, and MALDI‐TOF‐MS techniques. The switch from the locked to unlocked state was clearly confirmed by these characterization techniques. The putative locked‐unlocked mechanism in the LAP was simulated by the Gaussian method. This intriguing mechanistic finding of LAP reactions is expected to supplement the existing knowledge and facilitate the tailoring of specific structures for these polymerizations.

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Cyanidosilikate – Synthese und Struktur

et al. 2019

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Ausgehend von Fluoridosilikat-Vorstufen in reinem Cyantrimethylsilan, Me 3 Si-CN,w urde eine Reihe verschiedener Ammoniumsalze[ R 3 NMe] + (R = Et, n Pr, n Bu) mit den neuen [SiF(CN) 5 ] 2À -und [Si(CN) 6 ] 2À -Dianionen in einfachen, temperaturgesteuerten F À /CN À -Austauschreaktionen synthetisiert. Mit zersetzbaren, nicht-unschuldigen Kationen wie [R 3 NH] + konnten Metallsalzed es Typs M 2 [Si(CN) 6 ]( M + = Li + ,K + )d urchN eutralisationsreaktionen mit entsprechenden Metallhydroxiden hergestellt werden. Die ionische Flüssigkeit [BMIm] 2 [Si(CN) 6 ]( Schmp. = 72 8 8C) wurde durch eine Salzmetathesereaktion erhalten. Alle synthetisierten Salzekonnten in guten Ausbeuten isoliert und vollständig charakterisiert werden.

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Stabilisierung eines Blausäure‐Dimers mit einer Lewis‐Säure

Cited by 15 publications

References 71 publications

Synthesis and Characterization of Poly(hydrogen halide) Halogenates (–I)

Synthesis and Characterization of Poly(hydrogen halide) Halogenates (–I)

Investigation of the Locked‐Unlocked Mechanism in Living Anionic Polymerization Realized with 1‐(Tri‐isopropoxymethylsilylphenyl)‐1‐phenylethylene

Cyanidosilikate – Synthese und Struktur

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