Two new positronic molecules have been discovered, stabilized by a new type of bond called the positronic bond. One of the molecules can also attach an additional positron, forming a stable species with three positrons.
Two new positronic molecules have been recently discovered: e(+)(H-)(2) [Charry et al., Angew. Chem., Int. Ed. 57, 8859 (2018)] and (PsH)(2) [D. Bressanini, J. Chem. Phys. 155, 054306 (2021)]. These molecules seem to be stabilized by a new type of bond, the positronic bond, where one or two positrons are directly responsible for the bonding of two otherwise repelling negative ions. We show that an additional positron can attach to (PsH)(2) to form a locally stable species with three positrons whose potential energy curve shows an equilibrium structure at about 8 bohr and a binding energy of 11.5(5) mhartree with respect to the dissociation into PsH + e(+)PsH. This molecule, tentatively called e(+)(PsH)(2), is the first system with three positrons discovered. Published under an exclusive license by AIP Publishing.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据