2022
DOI: 10.1021/acs.inorgchem.2c02991
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Atom-Precise Chiral Lanthanide-Silver(I) Heterometallic Clusters Ln3Ag5

Abstract: Three pairs of chiral Ln-Ag(I) clusters D/L-Ln 3 Ag 5 with C 3 symmetry were prepared by D/L-penicillamine as multidentate ligand bridged Ln 3+ and Ag(I) ions. The chiral ligand induced the molecular cluster to be chiral, and the CD spectra of the chiral compounds D/L-Ln 3 Ag 5 were slightly blue-shifted due to the lanthanide contraction. The studies of optical properties indicated that tunable photoluminescence from {AgS}-to-Ln 3+ was achieved by introducing Ln 3+ ions with different emission bands or regulat… Show more

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Cited by 6 publications
(6 citation statements)
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“…Most recently, we reported a series of chiral Ln-Ag(I) clusters by using L-/D-H 2 L as ligands containing S/O groups and adjusting the pH of the solution to 3-4 with trimethylamine (H 3 TEA). 39 Here, we successfully obtained three pairs of chiral Ln-Ag(I) cluster-based MOFs by increasing the ligand/metal ratio and raising the pH to 4-5 using H 3 TEA in the case of L-/D-H 2 L as primary ligands and N-acetyl-L-/D-alanine as auxiliary ligands. Although N-acetyl-L-/D-alanine does not directly participate in coordination, the corresponding compounds cannot be obtained without its presence, indicating that it may play a role in regulating the pH of the reaction solution.…”
Section: Resultsmentioning
confidence: 96%
“…Most recently, we reported a series of chiral Ln-Ag(I) clusters by using L-/D-H 2 L as ligands containing S/O groups and adjusting the pH of the solution to 3-4 with trimethylamine (H 3 TEA). 39 Here, we successfully obtained three pairs of chiral Ln-Ag(I) cluster-based MOFs by increasing the ligand/metal ratio and raising the pH to 4-5 using H 3 TEA in the case of L-/D-H 2 L as primary ligands and N-acetyl-L-/D-alanine as auxiliary ligands. Although N-acetyl-L-/D-alanine does not directly participate in coordination, the corresponding compounds cannot be obtained without its presence, indicating that it may play a role in regulating the pH of the reaction solution.…”
Section: Resultsmentioning
confidence: 96%
“…Bond angles and bond lengths for Tb 2 Tb 2 are within the normal range of lanthanide clusters (Tables S1 and S2). …”
Section: Resultsmentioning
confidence: 99%
“…A similar dependence of emission color on excitation wavelength has been described for chiral Ln(III)-Ag(I) metal-organic frameworks based on cluster Ag 5 S 6 . 11,44 Thus, the combination of the Ln 3+ and Ag + ions surrounded by fluorophore ligands is the efficient route towards the emissive coordination compounds revealing important optical properties, such as multi-colored PL switchable by external stimuli. Stimuliresponsive luminescent compounds are of practical importance along with substances exhibiting luminescence sensing properties.…”
Section: Photophysical Propertiesmentioning
confidence: 99%
“…5,10 These heterometallic compounds combine the advantages of Ln 3+ and Ag + ions, resulting in non-trivial luminescent properties. [11][12][13][14][15] However, due to the variable and high coordination numbers of Ln 3+ ions, as well as the competitive coordination between f and d metal centers, the preparation of f-d coordination compounds is a challenging task. Therefore, the choice of appropriate bridging ligand that can coordinate to both metal ions is a key factor for the successful preparation of f-d heterometallic complexes.…”
Section: Introductionmentioning
confidence: 99%