Organometallics
Organometallics
5 years ago

Diruthenium Carbido Complexes as N-Heterocyclic Carbene Like C-Donor Ligands to Group 11 Metals

Diruthenium Carbido Complexes as N-Heterocyclic Carbene Like C-Donor Ligands to Group 11 Metals
Masayuki Tsujita, Shin Takemoto, Hiroyuki Matsuzaka
Deprotonation of the diruthenium μ-methylidyne complex [(Cp*Ru)2(μ-NtBu)(μ-CH)][BF4] (Cp* = η5-C5Me5) with 2 equiv of KN(SiMe3)2 in the presence of CuCN, AgOTf, or AuCl(SMe2) afforded the trigonal planar bridging carbido complexes [(Cp*Ru)2(μ-NtBu)(μ3-C)M{N(SiMe3)2}] (M = Cu (4), Ag (5), and Au (6)). Complexes 4 and 6 were characterized crystallographically. The M–C bonding in these complexes showed considerable similarity with that in the N-heterocyclic carbene (NHC) derivatives (NHC)M{N(SiMe3)2} (M = Cu and Au), illustrating the analogy between the diruthenium carbido ligand [(Cp*Ru)2(μ-NtBu)(μ-C)] and NHCs. The reaction of 4 with 2,6-di-tert-butylphenol allowed derivatization via protonolytic exchange of the disilazide moiety, yielding the aryloxo complex [(Cp*Ru)2(μ-NtBu)(μ3-C)Cu(OAr)] (7; Ar = 2,6-tBu2C6H3), which was also structurally characterized. The electron donor ability and steric bulkiness of the diruthenium carbido ligand were studied by computational methods.

Publisher URL: http://dx.doi.org/10.1021/acs.organomet.7b00229

DOI: 10.1021/acs.organomet.7b00229

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.