Competing Electron-Deficient σ-Bond Configurations across Successive Structural Transitions in Li0.5VS2
Unconventional bonding motifs, such as multicenter or electron-deficient σ bonds, have long been expected to provide a platform for unconventional electronic behavior, yet in many cases lead to electronically conventional ground states. Here, we investigate the layered vanadium chalcogenide Li0.5VS2, which exhibits s...