Novel phenoxo-bridged di- and tri-nuclear Cu(II) salamo-like complexes driven by various counter-anions

La, Ya‐Ting; Yan, Yuan‐Ji; Gan, Lu-Lu; Li, Xu; Dong, Wen‐Kui

doi:10.1016/j.ica.2022.121336

Cited by 75 publications

(3 citation statements)

References 56 publications

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“…In addition, the UV/Vis spectra of the L and 1-2 in DMF solution show that the ligand has two maximum absorption peaks at λ max = 277, 283 nm, which is due to the π-π * and n-π * transitions inside the ligand. The maximum absorption peaks of 1-2 showed a slight shift, which further proved that the ligand may be involved in the coordination of Ag(I) [52][53][54][55][56].…”

Section: General Characterization and Crystal Structurementioning

confidence: 99%

Study for the hydrogen evolution reaction of doped carbon paste composite electrodes with multinuclear Ag(I) complexes based on nitrogen heterocyclic ligand

Wu,

Dou,

Xie

et al. 2024

Preprint

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Two Ag(I) complexes, [Ag3(L)3(BTC)]·3C2H5OH (1) [Ag2(L)2(TPA)]·2H2O (2) (L = 1,3-bis[(N-methylbenzimidazole)methylene]-2-aniline, H3BTC = 1,3,5-benzenetricarboxylic acid, H2TPA = terephthalic acid ) were synthesized and characterized by elemental analysis, IR, UV-visible spectroscopy and X-ray single crystal diffraction. Structural analysis shows that the two complexes are trinuclear fan-shaped and binuclear central symmetric structures respectively. Linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS) were used to study the hydrogen evolution reaction (HER) characteristics of two complexes modified carbon paste electrodes (CE-1 and CE-2) in 0.5M H2SO4 electrolyte. The research results indicate that the overpotential (η10293 K) of CE-1 and CE-2 showed a positive shift of 203 and 319 mV compared to CE (without complex, 965 mV), and Tafel slopes (b293 K) are 193 and 175 mV·dec-1, respectively. The above results manifest that CE-1 and CE-2 have a good electrocatalytic effect on HER and CE-2 is significantly better than CE-1, which is attributed to the greater deformability of the silver(I) ion coordination environment in complex 2. The above conclusions provide a theoretical basis for the application of Ag(I) complexes in the electrochemical field.

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Section: General Characterization and Crystal Structurementioning

confidence: 99%

Study for the hydrogen evolution reaction of doped carbon paste composite electrodes with multinuclear Ag(I) complexes based on nitrogen heterocyclic ligand

Wu,

Dou,

Xie

et al. 2024

Preprint

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“…1,2-Bis(aminooxy)ethane, 2-hydroxy-5-methylisophthalaldehyde, and 2-[ O -(1-ethyloxyamide]oxime-2-naphthol were synthesized following a well-established method. , As illustrated in Scheme , the synthetic pathway of the ligand H 4 L is given.…”

Section: Experimental Sectionmentioning

confidence: 99%

Coordination-Driven Salamo-Salen-Salamo-Type Multinuclear Transition Metal(II) Complexes: Synthesis, Structure, Luminescence, Transformation of Configuration, and Nuclearity Induced by the Acetylacetone Anion

Yan

et al. 2023

Inorg. Chem.

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A flexible polydentate Salamo-Salen-Salamo hybrid ligand H 4 L was designed and synthesized, which has rich pockets (salamo and salen pockets) so that it may have fascinating coordination patterns with transition metal(II) ions. Four multinuclear transition metal(II) complexes, novel butterflyshaped homotetranuclear 4), have been synthesized and characterized by single-crystal X-ray diffraction. The effects of different anions [OAc − and (O 2 C 5 H 7 ) 2− ] on the complexation behavior of H 4 L with transition metal(II) ions were studied by UV−vis spectrophotometry. The fluorescent properties of the four complexes were studied with zebrafish, which are expected to be a potential light-emitting material. Ultimately, interaction region indicator (IRI) valuations, Hirshfeld surface analyses, density functional theory (DFT & TD-DFT), electrostatic potential analyses (ESP), and simulations were carried out to further demonstrate the weak interactions and electronic properties of the free ligand and its four complexes.

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“…The crystal structures of the complexes were obtained by X-ray single crystal diffraction, but the environment around the complex molecules was unknown. 69,70 Thus, the free volume inside the box simulated by molecular dynamics can be calculated using Multiwfn and shown in Figure 10.…”

Section: Free Region Of Crystal Structurementioning

confidence: 99%

Experimental and computational studies of two binuclear Co(II) and Ni(II) bis(salamo)‐like complexes

Yan,

La,

et al. 2023

Applied Organom Chemis

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Acetate‐bridged binuclear Co(II) and Ni(II) complexes, [Co2(L)(μ‐OAc)(EtOH)] (1) and [Ni2(L)(μ‐OAc)(EtOH)] (2) were synthesized via the reaction of a new bis(salamo)‐like ligand with two different metal(II) acetates. X‐ray single crystal diffraction analyses showed that two metal(II) ions (Co or Ni) occupy two sets of N2O2 cavities, respectively. The acetate group bridges the two metals, and the ethanol oxygen atom participates in the coordination. Furthermore, UV–vis titration experiments clearly indicated that the complexation between H3L and M(II) ions leads to the 1:2 complexes [(L)M2]+ through a highly synergistic process. Bond valence sum (BVS) calculations exhibited that the Co(II) and Ni(II) ions are divalent. Secondly, the ligand H3L highest occupied molecular orbital–lowest unoccupied molecular orbital (HOMO‐LUMO) gap analysis and surface electrostatic potential were theoretically analyzed by theoretical calculation (density functional theory), and the reactivity of M(II) ions and the ligand in the complex formation process was demonstrated. Finally, the microscopic properties of the complexes were deeply understood through the calculation of the weak intramolecular interactions and the unstressed regions outside the complexes.

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Novel phenoxo-bridged di- and tri-nuclear Cu(II) salamo-like complexes driven by various counter-anions

Cited by 75 publications

References 56 publications

Study for the hydrogen evolution reaction of doped carbon paste composite electrodes with multinuclear Ag(I) complexes based on nitrogen heterocyclic ligand

Study for the hydrogen evolution reaction of doped carbon paste composite electrodes with multinuclear Ag(I) complexes based on nitrogen heterocyclic ligand

Coordination-Driven Salamo-Salen-Salamo-Type Multinuclear Transition Metal(II) Complexes: Synthesis, Structure, Luminescence, Transformation of Configuration, and Nuclearity Induced by the Acetylacetone Anion

Experimental and computational studies of two binuclear Co(II) and Ni(II) bis(salamo)‐like complexes

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