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- Title
Synthesis and Characterization of a Metallacyclic Framework with Three Fused Five-membered Rings.
- Authors
Zhu, Congqing; Wu, Jingjing; Li, Shenyan; Yang, Yuhui; Zhu, Jun; Lu, Xin; Xia, Haiping
- Abstract
Polycyclic complexes containing a bridgehead transition metal are interesting species because the transition metal is shared by all the rings simultaneously. In this study, we present a novel osmium-bridgehead system with three fused five-membered rings. This novel framework can be viewed as a 10-atom carbon chain coordinating to the osmium center. In sharp contrast to the nonplanar organic analogue, this unique metallacycle exhibits good planarity, which was unambiguously verified by means of X-ray diffraction. Interestingly, preliminary DFT calculations show that the aromaticity in the three 5MRs of these osmatricycles can be easily tuned by the ligand substitution. Finally, the broad UV/Vis absorption spectra of these novel polycyclic complexes were also reported.
- Subjects
ACYCLIC acids; METAL-organic frameworks; RING formation (Chemistry); POLYCYCLIC compounds; TRANSITION metals; X-ray diffraction; DENSITY functional theory
- Publication
Angewandte Chemie, 2017, Vol 129, Issue 31, p9195
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201704057