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Title: Rational design of an argon-binding superelectrophilic anion

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America

Chemically binding argon (Ar) at room temperature has remained the privilege of the most reactive electrophiles, all of which are cationic (or even dicationic) in nature. Herein, we report a concept for the rational design of anionic superelectrophiles that comprise a strong electrophilic center firmly embedded in a negativelycharged framework of exceptional stability. To validate our concept, we synthesized the percyano-dodecoborate [B12(CN)12]2-, the electronically most stable dianion ever investigated experimentally. It serves as a precursor for the generation of the monoanion [B12(CN)11]-, which indeed spontaneously binds Ar at 298 K. Our mass spectrometric and spectroscopic studies are accompanied by high-level computational investigations including a bonding analysis of the exceptional B-Ar bond. The first detection and characterization of this highly reactive, structurally stable anionic superelectrophile starts a new chapter in the metal-free activation of particularly inert compounds and elements.

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1530557
Report Number(s):
PNNL-SA-140803
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Vol. 116, Issue 17
Country of Publication:
United States
Language:
English

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Cited By (7)

Stable Tetra‐ and Penta‐Anions in the Gas Phase journal July 2019
Stable Tetra- and Penta-Anions in the Gas Phase journal July 2019
Quantum chemical prediction of a superelectrophilic dianion and its binding with noble gas atoms journal January 2019
Record-high stability and compactness of multiply-charged clusters aided by selected terminal groups journal January 2020
First steps towards a stable neon compound: observation and bonding analysis of [B 12 (CN) 11 Ne] journal January 2020
Stable Tetra‐ and Penta‐Anions in the Gas Phase journal July 2019
First steps towards a stable neon compound: observation and bonding analysis of [B 12 (CN) 11 Ne] − text January 2020

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