N-Heterocyclic Carbene (NHC) Ligand Exchange of Bis(NHC)–Pd(II) Complexes
N-heterocyclic carbene (NHC)-Pd(II) bonds are recognized as rather robust bonds to equip palladium(II) centers with decent stability and stereoelectronic tunability. In this report, the authentic carbene-Pd(II) bonds in <i>N</i>-ammonium- and sulfonate-functionalized NHC complexes were activated, and NHC ligand exchange was triggered to afford four well-defined, sulfobetaine-type, zwitterionic heterobiscarbene complexes. Combined experimental studies and density functional theory calculations indicated that electrostatic interactions play a minimal role in the energy of this reaction; instead, the exchange appears to be driven primarily by the precipitation of the resulting zwitterionic complexes.
Authors
- Qi Meng (ORCID: https://orcid.org/0000-0002-6356-3762)
- Hao Jin (ORCID: https://orcid.org/0000-0002-6584-6838)
- Qiaoqiao Teng
- Gilles Frison (ORCID: https://orcid.org/0000-0002-5677-3569)
- Yaru Zhao (ORCID: https://orcid.org/0000-0003-1233-6321)
- Lina Zhang (ORCID: https://orcid.org/0009-0005-3255-2285)
- Wei Liu (ORCID: https://orcid.org/0000-0003-2018-7004)
Institutions
- Centre National de la Recherche Scientifique (FR)
- Sorbonne Université (FR)
- Laboratoire de Chimie Théorique (FR)
- Changzhou University (CN)
Publication Details
- Journal
- Inorganic Chemistry
- Published
- 2024-11-07
- DOI
- https://doi.org/10.1021/acs.inorgchem.4c03652
- Citations
- 3
- Primary Topic
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Type
- article
- Field-Weighted Citation Impact
- 0.75
Funders
- National Natural Science Foundation of China
- Centre National de la Recherche Scientifique
- Changzhou University
- Sorbonne Université
- Natural Environment Research Council