Heterobimetallic Silver(I) and Copper(I) pyrazolates supported with 1,1′-bis(diphenylphosphino)ferrocene

Titov, Aleksei A.; Smol’yakov, Alexander F.; Filippov, Oleg A.

doi:10.1016/j.jorganchem.2021.121813

Cited by 6 publications

(3 citation statements)

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“…From another hand, trinuclear metal pyrazolates form stable complexes with boron hydrides or halide substituents/ligands [33][34][35][36][37]. Interaction of this class of compound with P-or N-donor Inorganics 2023, 11, 175 2 of 13 ligands allows the rearrangement of the central core with the formation of di-, tri-, tetra-, or pentanuclear cores [15,[38][39][40][41][42][43][44]. Our studies of the host-guest complexes of the macrocyclic coinage metal pyrazolates with ketones or isocoumarines possess their coordination via the oxygen atom of the C=O group and demonstrate the formation of 1:1 complexes in the solution.…”

Section: Introductionmentioning

confidence: 99%

Exploring the Interaction of Pyridine-Based Chalcones with Trinuclear Silver(I) Pyrazolate Complex

et al. 2023

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The investigation of the interaction of cyclic trinuclear silver(I) pyrazolate [AgPz]3 (Pz = 3,5-bis(trifluoromethyl)pyrazolate) with pyridine-based chalcones (anthracen-9-yl and phenyl-substituted ones) has been performed by IR-, UV-vis, and NMR spectroscopies in the solution. The carbonyl group participates in coordination with metal ions in all complexes. However, the network of π-π/M-π non-covalent intermolecular interactions mainly influences complex formation. The spectral data suggest retaining the structures for all studied complexes in the solution and solid state. E-Z isomerization in the case of anthracene-containing compounds significantly influences the complexation. E-isomer of chalcones seeks the planar structure in the complexes with [AgPz]3. In contrast, the Z-isomer of chalcone demonstrates the chelating coordination of O- and N atoms to silver ions. The complexation of anthracene-containing chalcones allows the switching of the emission nature from charge transfer to ligand-centered at 77 K. In contrast, phenyl-substituted chalcone in complex with macrocycle demonstrates that the emission significantly shifted (Δ = ca. 155 nm) to the low-energy region compared to the free base.

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Section: Introductionmentioning

confidence: 99%

Exploring the Interaction of Pyridine-Based Chalcones with Trinuclear Silver(I) Pyrazolate Complex

et al. 2023

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“…However, bases of other types also form stable complexes with [MPz] 3 [ 33 , 34 , 35 , 36 , 37 , 38 ]. Thus, the interactions of cyclic trinuclear complexes with nitrogen- or phosphorus-containing ligands lead to the formation of heteroleptic metal pyrazolates of different structures, depending on the reagent ratios [ 39 , 40 , 41 , 42 , 43 , 44 ]. The complexation of macrocycles with diimines (bipyridine- or phenanthroline-type ligands) allows di-, tetra-, or pentanuclear complexes to be obtained [ 40 , 45 , 46 ].…”

Section: Introductionmentioning

confidence: 99%

Tetranuclear Copper(I) and Silver(I) Pyrazolate Adducts with 1,1′-Dimethyl-2,2’-bibenzimidazole: Influence of Structure on Photophysics

et al. 2023

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A reaction of a cyclic trinuclear copper(I) or silver(I) pyrazolate complex ([MPz]3, M = Cu, Ag) with 1,1′-dimethyl-2,2’-bibenzimidazole (L) leads to the formation of tetranuclear adducts decorated by one or two molecules of a diimine ligand, depending on the amount of the ligand added (0.75 or 1.5 equivalents). The coordination of two L molecules stabilizes the formation of a practically idealized tetrahedral four-metal core in the case of a copper-containing complex and a distorted tetrahedron in the case of a Ag analog. In contrast, complexes containing one molecule of diimine possess two types of metals, two- and three-coordinated, forming the significantly distorted central M4 cores. The diimine ligands are twisted in these complexes with dihedral angles of ca. 50–60°. A TD-DFT analysis demonstrated the preference of a triplet state for the twisted 1,1′-dimethyl-2,2’-bibenzimidazole and a singlet state for the planar geometry. All obtained complexes demonstrated, in a solution, the blue fluorescence of the ligand-centered (LC) nature typical for free diimine. In contrast, a temperature decrease to 77 K stabilized the structure close to that observed in the solid state and activated the triplet states, leading to green phosphorescence at ca. 500 nm. The silver-containing complex Ag4Pz4L exhibited dual emission from both the singlet and triplet states, even at room temperature.

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“…16 Complexation of trinuclear pyrazolates with N-or P-donor ligands leads to the formation of heteroleptic metal complexes, the structures of which depend on reagent ratios. [17][18][19][20][21] Thus, different ratios of tertiary phosphine (PR 3 ) or diimine (N^N) ligands lead to mono-, di-and tetranuclear complexes. The substituents at the pyrazolate ligand also allow changing the structures.…”

Section: Introductionmentioning

confidence: 99%

Emissive silver(i) cyclic trinuclear complexes with aromatic amine donor pyrazolate derivatives: way to efficiency

Emashova

Titov

Smol’yakov

et al. 2022

Inorg. Chem. Front.

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Heterobimetallic Silver(I) and Copper(I) pyrazolates supported with 1,1′-bis(diphenylphosphino)ferrocene

Cited by 6 publications

References 54 publications

Exploring the Interaction of Pyridine-Based Chalcones with Trinuclear Silver(I) Pyrazolate Complex

Exploring the Interaction of Pyridine-Based Chalcones with Trinuclear Silver(I) Pyrazolate Complex

Tetranuclear Copper(I) and Silver(I) Pyrazolate Adducts with 1,1′-Dimethyl-2,2’-bibenzimidazole: Influence of Structure on Photophysics

Emissive silver(i) cyclic trinuclear complexes with aromatic amine donor pyrazolate derivatives: way to efficiency

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