We report the first application of a rigid P2N3 pincer ligand in p-block chemistry by preparing its bismuth complex. We also report the first example of bismuth complexes featuring a flexible PNP pincer ligand, which shows phase-dependent structural dynamics. Highly electrophilic, albeit thermally unstable, Bi(iii) complexes of the PNP ligand were also prepared.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/d0dt01413c | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Terpenylation of Ketones and a Secondary Alcohol under Hydrogen-Borrowing Manganese Catalysis.
J Org Chem
January 2025
Department of Chemistry, Indian Institute of Technology Jodhpur, Karwar, Jodhpur, Rajasthan 342037, India.
An Earth-abundant Mn-PNP pincer complex-catalyzed terpenylation of cyclic and acyclic ketones and secondary alcohol 1-phenylethanol using isoprenoid derivatives prenol, nerol, phytol, solanesol, and E-farnesol as allyl surrogates is reported. The C-C coupling reactions are green and atom-economic, proceeding via dehydrogenation of alcohols following a hydrogen autotransfer methodology aided by metal-ligand cooperation.
View Article and Find Full Text PDFSynthesis of Os Hydride Complexes Supported by the Diarylamido/Bis(phosphine) PNP Ligand and Attempts at Using (PNP)Ru and (PNP)Os Complexes in C-H Borylation Catalysis.
Organometallics
November 2024
Department of Chemistry, Texas A&M University, College Station, Texas 77842, United States.
This manuscript describes the synthesis of Os complexes supported by the diarylamido/bis(phosphine) PNP pincer ligand. Compound (PNP)OsH(CO) () was prepared by analogy with the previously reported . However, attempts to make (PNP)OsH () analogously to resulted in the formation of an unexpected compound () that is a product of addition of a BH unit across the Os-N bond in .
View Article and Find Full Text PDFHighly selective customized reduction products for hydrogenation of CO-derived urea derivatives or carbamates.
Chem Sci
December 2024
Department of Chemistry, ZJU-NHU United R&D Center, Zhejiang University Hangzhou 310027 China
Article Synopsis
- Catalytic hydrogenation of CO-derived urea derivatives or carbamates offers an efficient way to convert CO into useful chemicals under mild conditions, avoiding the need for high temperatures and pressures.
- Current catalyst systems focus on producing one specific product, requiring external additives to change products, which limits their versatility.
- This study introduces an Ir-based PNP pincer catalyst that allows for the selective production of various chemicals by simply altering reaction temperatures, showcasing the potential of this method for indirectly converting CO into valuable products and fuels.
T-shaped 14 Electron Rhodium Complexes: Potential Active Species in C-H Activation.
Angew Chem Int Ed Engl
December 2024
Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany.
Two T-shaped 14-electron rhodium complexes 2 a and 2 b, "framed" and thus stabilized by PNP pincer ligands have been synthesized. The bis(t-butyl)phosphine derived PNP-rhodium complex 2 a was isolated from pentane as the more stable cyclometalated Rh(III) hydrido complex and found to be in equilibrium with the T-shaped 14e Rh(I) complex 2 aT which itself could be directly crystallized upon change of the solvent. The cyclometallation is suppressed using an adamantyl substituted PNP ligand to give the analogous T-shaped Rh(I) species 2 b, stabilized through an agostic interaction with one of the adamantyl C-Hs.
View Article and Find Full Text PDFDenitrogenative Ring-Contraction of Pyridines to a Cyclopentadienyl Skeleton at a Dititanium Hydride Framework.
J Am Chem Soc
November 2024
Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
Selective removal of the nitrogen atom from an aromatic -heterocycle, such as pyridine, is of significant interest and importance, yet it remains highly challenging. Here, we report an unprecedented denitrogenative ring-contraction reaction of pyridines at a dititanium hydride framework, yielding cyclopentadienyl and nitride species under mild conditions. The reaction of pyridine with a dititanium tetrahydride complex () bearing rigid acridane-based PNP-pincer ligands at room temperature produced a cyclopentadienyl/nitride complex (), in which the two Ti atoms are bridged by a nitride atom and one Ti atom is bonded to a cyclopentadienyl group formed by pyridine denitrogenation and ring-contraction.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!