Sakurai, Aizoh Akita, Munetaka Moro-oka, Yoshihiko Synthesis and Characterization of the Dodecahexaynediyldiiron Complex, Fp*−(C⋮C)<sub>6</sub>−Fp* [Fp*= Fe(η<sup>5</sup>-C<sub>5</sub>Me<sub>5</sub>)(CO)<sub>2</sub>], the Longest Structurally Characterized Polyynediyl Complex Cu-catalyzed oxidative coupling of the hexatriynyl complex Fp*−(C⋮C)<sub>3</sub>−H affords the dodecahexynediyl diiron complex Fp*−(C⋮C)<sub>6</sub>−Fp*. Its linear but slightly twisted structure has been revealed by X-ray crystallography. dodecahexynediyl diiron;Dodecahexaynediyldiiron Complex;C 5;Fp;CO 1999-07-17
    https://acs.figshare.com/articles/journal_contribution/Synthesis_and_Characterization_of_the_Dodecahexaynediyldiiron_Complex_Fp_C_C_sub_6_sub_Fp_Fp_Fe_sup_5_sup_-C_sub_5_sub_Me_sub_5_sub_CO_sub_2_sub_the_Longest_Structurally_Characterized_Polyynediyl_Complex/3784875
10.1021/om990266i.s002