Discussion on Sextuple Bonding in Diatomic Motifs of Chromium Family Elements
Numerous experimental and theoretical studies have been conducted to explore the bonding models and relative stability of Cr2,Mo2,W2 groups within chromium family.This paper reviews the current research trajectory and recent advancements,specially focusing on their bonding configurations and strategies for further stabilization.The analysis suggests that the instability of Cr2,Mo2,W2 groups results from the electron repulsion in tightly packed electrons between the two individual atoms.Thus,approaches to stabilize these molecules fundamentally aim to reduce electron density and mitigate electron-electron repulsion.
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