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- Title
(η 4 -Tetraphenylcyclobutadiene)-(η 5 -pentaphenylcyclopentadienyl)-cobalt.
- Authors
Klein-Heßling, Christian; Sünkel, Karlheinz
- Abstract
A one-pot reaction starting with C5Ph5Br, n-BuLi and [CoCl(PPh3)3] followed by the addition of diphenylethyne produces the title compound with 12% yield. Spectroscopic characterization involved 1H, 13C-NMR, UV-Vis and mass spectrometry. A crystal structure determination showed that the central aromatic rings are exactly parallel with the cyclobutadiene ring further apart from the metal as usual. The pentaphenyl–cyclopentadienyl ligand shows an usual paddlewheel orientation, whereas in the tetraphenyl–cyclobutadiene ligand, two of the phenyl groups are nearly coplanar with the four-membered ring. There are also numerous C–H...C(π) interactions between the phenyl groups on the same ring, as well as between rings.
- Subjects
PHENYL group; MASS spectrometry; GROUP rings; CRYSTAL structure; CYCLOBUTADIENE
- Publication
Molbank, 2022, Vol 2022, Issue 4, pM1502
- ISSN
1422-8599
- Publication type
Article
- DOI
10.3390/M1502