Preparation of Mixed Bis-N-Heterocyclic Carbene Rhodium(I) Complexes

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Azpiroz R., Olgun Karatas M. O., Passarelli V., ÖZDEMİR İ., Perez-Torrente J. J., Castarlenas R.

MOLECULES, cilt.27, sa.20, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 27 Sayı: 20
  • Basım Tarihi: 2022
  • Doi Numarası: 10.3390/molecules27207002
  • Dergi Adı: MOLECULES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Biotechnology Research Abstracts, CAB Abstracts, Chemical Abstracts Core, Communication Abstracts, EMBASE, Food Science & Technology Abstracts, MEDLINE, Metadex, Veterinary Science Database, Directory of Open Access Journals, Civil Engineering Abstracts
  • Anahtar Kelimeler: N-heterocyclic carbene, coumarin, rhodium, mixed-NHC, anagostic interactions, C-H ACTIVATION, STRUCTURAL-CHARACTERIZATION, PALLADIUM COMPLEXES, CRYSTAL-STRUCTURES, NHC COMPLEXES, LIGANDS, CATALYSTS, IRIDIUM, HYDROTHIOLATION, PHOSPHINE
  • İnönü Üniversitesi Adresli: Evet

Özet

A series of mixed bis-NHC rhodium(I) complexes of type RhCl(eta(2)-olefin)(NHC)(NHC') have been synthesized by a stepwise reaction of [Rh(mu-Cl)(eta(2)-olefin)(2)](2) with two different NHCs (NHC = N-heterocyclic carbene), in which the steric hindrance of both NHC ligands and the eta(2)-olefin is critical. Similarly, new mixed coumarin-functionalized bis-NHC rhodium complexes have been prepared by a reaction of mono NHC complexes of type RhCl(NHC-coumarin)(eta(2),eta(2)-cod) with the corresponding azolium salt in the presence of an external base. Both synthetic procedures proceed selectively and allow the preparation of mixed bis-NHC rhodium complexes in good yields.