Isolation of mixed valence charge-neutral Ag<sub>12</sub>, and dicationic Ag<sub>10</sub> nano-clusters stabilized by carbene-phosphaalkenides
Cyclic alkyl(amino) carbene (cAAC)-supported phosphaalkenides (cAACP)<sup>-</sup> have been employed as ligands for the isolation of two atomically precise mixed valence paramagnetic AgI/012Cl<sub>3</sub>, and AgI/010, nano-clusters [(Me<sub>2</sub>-cAACP)<sub>6</sub>Ag<sub>12</sub>Cl<sub>3</sub>] (2), and [(Me<sub>2</sub>-cAACP)<sub>6</sub>Ag<sub>10</sub>](NTf<sub>2</sub>)<sub>2</sub> (4). 2 and 4 have been structurally characterized by single-crystal X-ray diffraction revealing the presence of three Ag<sup>0</sup> atoms, nine Ag<sup>I</sup> ions (2); and two Ag<sup>0</sup> atoms, eight Ag<sup>I</sup> ions (4), respectively. The clustering inorganic unit Ag<sub>12</sub>Cl<sub>3</sub> in 2 has been found to be surrounded by six mono-anionic μ<sub>3</sub>-cAACP moieties having 3-bar symmetry. 2 and 4 have been studied by cyclic voltammetry, UV-vis, ESI-MS, XPS, EPR spectroscopy, and DFT calculations.
Authors
- Siriyara Jagannatha Prathapa
- Sudipta Roy (ORCID: https://orcid.org/0000-0002-5883-4329)
- Maria Francis (ORCID: https://orcid.org/0000-0002-0506-4885)
- Asutosh Patra (ORCID: https://orcid.org/0000-0002-8570-3121)
- Fariah Salam (ORCID: https://orcid.org/0009-0003-2267-3847)
Institutions
- Bruker (United States) (US)
- Indian Institute of Science Education and Research, Tirupati (IN)
Publication Details
- Journal
- Chemical Communications
- Published
- 2024-12-12
- DOI
- https://doi.org/10.1039/d4cc05628k
- Primary Topic
- Nanocluster Synthesis and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00