Unusual η1 (S) coordination of dibenzothiophene to trinuclear acetylide clusters [(μ-H)M3(CO)9(CCSiMe3)] (M = Ru, Os).)

The acetylide derivatives [(mu-H)M-3(CO)(9)(CCSiMe3)] (M = Ru, Os) react with dibenzothiophene (DBT) in the presence of Me3NO to produce a DBT complex where the acetylide ligand remains coordinated without modifications and the DBT is coordinated eta(1) through the sulfur atom. Both complexes were characterized by NMR spectroscopy and X-ray crystal structures were determined. Benzothiophene was also made to react with the ruthenium complex producing a complex with similar spectroscopic data. The DBT structures show the ligand to be coordinated eta(1)(S) to one of the metal atoms. (C) 2021 Elsevier B.V. All rights reserved.

Automated summary

Acetylide derivatives react with dibenzothiophene to produce complexes characterized by NMR and X-ray crystal structures. The DBT and benzothiophene complexes show ligands coordinated to metal atoms in specific ways.