Related Experiment Video
Updated: Jan 12, 2026
Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
Published on: April 19, 2019
Electron Delocalization Behavior in a Series of Linear Pentanuclear Cyanido-Bridged Molecular Wires
Jin-Hui Fu1, Ying Song1,2, Bing-Chang Tan1,2
1State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou, Fujian 350002, PR China.
Abstract:
Designing molecules with long-range electron communication at the nanoscale is a fascinating challenge in synthetic chemistry. In this study, we delve into the intricate architecture and electron delocalization of an array of linear pentanuclear molecular wires: trans-[Cp(dppp)Ru(μ-CN)Ru(dmap)4(μ-NC)Ru(dmap)4(μ-CN)Ru(dmap)4(μ-NC)Ru(dppp)Cp]-[PF6]n (4n+, n = 4, 5, 6; Cp = cyclopentadiene; dppp = 1,2-bis(diphenylphosphino)propane; dmap = 4-dimethylaminopyridine) and trans-[Cp*(dppp)Ru(μ-CN)Ru(dmap)4(μ-NC)Ru(dmap)4(μ-CN)Ru(dmap)4(μ-NC)Ru(dppp)Cp*][PF6]n (5n+, n = 4, 5, 6; Cp* = 1,2,3,4,5-pentamethylcyclopentadiene). The investigation reveals that the one-electron oxidation species 45+ and 55+ show local electron delocalization among the central three Ru atoms as confirmed by IR spectra and NIR spectra, supported by theoretical calculations. However, the two-electron oxidized products 46+ and 56+ are localized with an electron configuration RuII-RuIII-RuII-RuIII-RuII. Moreover, electron delocalization in the two-electron oxidized species is more concentrated between two pairs Cp/Cp*Ru-CN-Ru cores rather than among the central three metals.
More Related Videos
06:44From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
Published on: March 24, 2018
06:53Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
Published on: June 9, 2023
Related Concept Videos
04:01VSEPR Theory and the Effect of Lone Pairs
03:51Molecular Orbital Theory II
01:18Aromatic Hydrocarbon Anions: Structural Overview
Due to the absence of continuous...
02:42Valence Bond Theory
02:45Valence Bond Theory
02:46Crystal Field Theory - Tetrahedral and Square Planar Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...