Covalent Bonding in Positron Dihalides: A New Stable Ma�er-Antima�er Binding

Antimatter

Matter

Theoretically, atoms are combined into molecules through covalent bonds in which positrons are

shared instead of electrons

H H

Positrons (e+) are electron (e-) analogues with a positive charge

Can positronic bonding occur beyond the simple e+[H-H-] molecules?

Computational study on homo and heteronuclear compounds formed by two halide anions and one positron

Covalent bonds in positron dihalides

Reyes et al. (2019) DOI: 10.1039/C9SC04433G

ChemicalScience

Formation of energetically stable positronic molecules are possible far beyond the previously addressed e+[H-H-] molecule

Y-X-

Any particle molecular orbital (APMO) approach

X- X-

X- Y-Homonuclear compounds

Heteronuclear compounds

Short bond length, high bond energy and strong force constant

e+ Electron density of halides

Electronic Supplementary Material (ESI) for Chemical Science.This journal is © The Royal Society of Chemistry 2019

https://pubs.rsc.org/en/content/articlelanding/2019/sc/c9sc04433g#!divAbstract