3
– cluster has been described using valence bond (VB) theory.
1 An international research team has convincingly demonstrated that this bond is neither dative nor typical covalent, as had previously been proposed, but rather shows a combination of properties that haven’t been seen before. The new results, which unify previous descriptions of this system, could help to solve an ongoing debate around this unprecedented bonding situation.
‘The authors figured out what’s going on with the strange bond in NaBH
3
–,’ comments John Galbraith at Marist College in the US. He explains that previous reports were contradictory because the sodium–boron bond doesn’t fit into any of the predefined bonding categories. ‘There are highly developed theories that explain most bonding situations. We get very excited when something comes along that doesn’t fit the existing theories,’ he says.
Elevación a juicio del caso Rotolo
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Mundial de Clubes: ¡histórico! Tigres vence a Palmeiras y accede a la gran final
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