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Updated: Jun 11, 2026

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Synthesis and characterization of rhena-phenalenyl complexes
Lei Li1, Bingjie Fu1, Yue Zhao1
1School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China. baiwei@dlut.edu.cn.
Researchers synthesized novel metalla-phenalenyl complexes featuring rhenium. These complexes exhibit a planar, delocalized structure with unique aromatic properties in their metallacycle units.
Area of Science:
- Organometallic Chemistry
- Materials Science
- Computational Chemistry
Background:
- Metallaaromatic compounds are of significant interest due to their unique structural and electronic properties.
- Phenalenyl ligands offer a versatile platform for constructing complex polycyclic aromatic systems.
Purpose of the Study:
- To synthesize and characterize the first metalla-phenalenyl complexes incorporating carbon-rhenium-carbon (C-Re-C) units.
- To investigate the structural, electronic, and aromatic properties of these novel rhenium-containing compounds.
Main Methods:
- Synthesis of metalla-phenalenyl complexes using ReCl3(PMePh2)3 and 1,8-diethynylnaphthalene.
- Characterization of the resulting complexes.
- Density Functional Theory (DFT) studies to analyze electronic structure and aromaticity.
Main Results:
- Successful synthesis of novel metalla-phenalenyl complexes with delocalized rhenaphenalenyl structures.
- The 3-membered ring (3MR) rhenacyclopropene units display sigma-aromaticity.
- The 6-membered ring (6MR) rhenacycle is found to be nonaromatic.
- The synthesized rhenapolycycle demonstrates stability but can undergo oxidation, leading to a different rhenaphenalenyl structure.
Conclusions:
- The study reports the first synthesis of metalla-phenalenyl complexes featuring C-Re-C units.
- The electronic structure reveals distinct aromaticity in the 3MR and non-aromaticity in the 6MR units.
- These findings contribute to the understanding of metallaaromaticity and the reactivity of polycyclic organometallic compounds.
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