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Updated: May 31, 2026

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene
Published on: March 20, 2017
[η-(Phenyl-ethyn-yl)cyclo-penta-dien-yl](η-tetra-phenyl-cyclo-butadiene)cobalt(I)
Abstract:
In the title compound, [Co(C(13)H(9))(C(28)H(20))], the Co atom is sandwiched between cyclo-penta-dienyl and cyclo-butadienyl rings that are inclined at a dihedral angle of 2.6 (3)°. The four phenyl rings are tilted with respect to the cyclo-butadienyl plane so that the C(4)Ph(4) unit constitutes a four-bladed propeller. The phenyl ring of the phenyl-alkyne substituent is inclined to the cyclo-penta-dienyl ring at an angle of 34.92 (18)°. The crystal structure is stabilized solely by C-H⋯π inter-actions which generate a three-dimensional network.
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