134097-48-6

Upstream product

• 55975-76-3 2-butyne-1,4-diol-hexacarbonyldicobalt 
• 108-98-5 thiophenol 
• 145721-66-0 {Co₂(HOCH₂CCCH₂SC₂H₅)(CO)6} 
• 145670-86-6 {Co₂(HOCH₂CCCH₂SC₆H₅)(CO)6} 
• 75-08-1 ethanethiol 

Downstream Products

• 145670-89-9 {Co₂(C₆H₅SCH₂CCCH₂SC₆H₅)(CH₂(P(C₆H₅)2)2)(CO)4} 

Relevant academic research and scientific papers

The synthesis of dimetallic thioalkyne complexes of cobalt and molybdenum

Treatment of CCR'2OH)(CO)6> with an excess of RSH in the presence of HBF4*OEt2 affords CCR'2SR)(CO)6> (R' = H, R = Et, nBu, tBu, Ph, Bz; R' = Me, R = Et), which undergo substitution with bis(diphenylphosphino)methane (dppm) to give CCR'2SR)(μ-dppm)(CO)4>.Similar treatment of CCH2OH)(CO)5Cp> and CCH2OH)(CO)4Cp2> with EtSH gives CCH2SEt)(CO)5Cp> and CCH2SEt)(CO)4Cp2>, respectively.Reaction of CCH2OH)(CO)6> with a small excess of RSH (R = Et or Ph), ca. two equivalents, affords , while reaction with only one equivalent of EtSH additionally gives an ether-bridged system containing two hexacarbonyldicobalt units, CCH2OCH2CCCH2SEt)-Co2(CO)6>.Treatment of CCH2SEt)(CO)6> with half an equivalent of HBF4*OEt2 affords CCH2OCH2CCCH2SEt)Co2(CO)6>.Attempted preparation of mixed thioether complexes results in a mixture of products, and a mechanism is proposed for thioether scrambling.The IR, NMR and mass spectra of the new compounds are reported and discussed.

Formation of Novel Bidentate and Crown Thioether Ligands via Dicobalt Alkyne Complexes

Open chain and cyclic thioalkyne complexes capable of ligating metal-carbonyl moieties are prepared by the reaction of CCH2OH)(CO)6> with mono- and di-thiols in the presence of HBF4 and the structures of Mo(CO)4> and (CO)6> have been established by X-ray crystallography; dppm = bis(diphenylphosphino)methane.