![]() ![]() But observing the molecular anion –, is an important step towards the prospect of a neon salt. In practice, – can only be synthesised within a mass spectrometer. Scientists have now found the ideal anion – one that despite being negatively charged overall has a strongly electrophilic free boron atom with a significant positive partial charge: –, which they used to create –. Neon poses no threat to the environment, and can have no impact at all because. Consequently, one of the greatest remaining challenges in the chemical sciences is to incorporate these elements into synthetic chemistry. of the abundance of the chemical elements as a heat map on a periodic table grid. Neon is a rare atmospheric gas and as such is non-toxic and chemically inert. Even theoretical calculations had failed to find an answer. You can use this form to calculate how much neon your body contains. A neon-containing anion would solve this problem, but a successful synthetic strategy for making one has remained elusive. The issue here is that forming a compound from these rare cations requires an anion, but an anion will oust neon from its electrophilic binding site within the cation. Cations arising when a strong electrophile removes electron density from neon can indeed form a localised bond. Neon-containing cations, however, are unlikely to become compounds. ![]() And whilst neon has featured in isolated cations in the gas phase, it is yet to become an ionic compound. But even the most inert noble gases – argon, neon and helium – have been known to join forces with other elements. Noble gases are the undisputed least reactive elements. Their method exploits the incredible reactivity of the superelectrophilic anion – and creates a boron–neon bond. Researchers in Germany have succeeded in making a molecular anion that contains neon. Source: © Jonas Warneke/Leipzig UniversityĪ free boron atom with a significant positive partial charge that lies in a crater of negatively charged substituents will bind to neon
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