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Updated: Dec 18, 2025

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−
Published on: July 27, 2018
Unprecedented stability enhancement of multiply charged anions through decoration with negative electron affinity
Meenakshi Joshi1, Tapan K Ghanty1
1Theoretical Chemistry Section, Chemistry Group, Bhabha Atomic Research Centre, Mumbai 400085, India. tapang@barc.gov.in and Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, India.
Abstract:
The present communication reports unprecedented stabilization of multiply charged anion, B12F122-, through insertion of noble gas (Ng) atoms possessing negative electron affinity into B-F bonds, resulting in the formation of stable icosahedral B12Ng12F122-, where the HOMO is stabilized significantly and the binding energy of the second excess electron is increased remarkably. Unprecedented stability enhancement with Ng is attributed to a strong covalent B-Ng bond, increased charge delocalization and increased electrostatic interaction between the oppositely charged centers.
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