AN EXPLORATION OF STRUCTURALLY  CHARACTERIZED HETERO-TRINUCLEAR  [Cu(II)2Ca(II)] FLEXIBLE-BIS(SALAMO)-TYPE COMPLEX

Yue, Yong-Ning; Zhang, T.; La, Ya‐Ting; Dong, Wen‐Kui

doi:10.1134/s0022476622060026

Cited by 74 publications

(3 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Complexes 3 – 4 show partial weak −OH stretching vibration bands at about 3421 and 3422 cm –1 , which are due to the incomplete deprotonation of the ligand. Clear stretching vibration peaks were observed for the typical CN and Ar–O groups of the ligand at about 1625 and 1258 cm –1 , respectively; however, in complexes 1 – 4 , the stretching vibration peaks of both CN and Ar–O were blueshifted; the CN stretching vibration peaks appear at about 1603, 1604, 1601, and 1604 cm –1 , respectively, and the Ar–O stretching vibration peaks appear at about 1250, 1253, 1249, and 1250 cm –1 , respectively, which indicates that the metal(II) atoms have coordinated to the nitrogen atoms of the CN group and the oxygen atoms of the Ar–O group of the ligand …”

Section: Resultsmentioning

confidence: 98%

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.

View full text Add to dashboard Cite

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.

show abstract

Section: Resultsmentioning

confidence: 98%

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.

View full text Add to dashboard Cite

show abstract

“…It is easy to synthesize and easy to modify, and it may form a helical configuration in space, which is of great research value. [12][13][14][15] Schiff base has been widely used as an organic ligand because of its advantages of good coordination cavity and easy modification and synthesis. [16][17][18][19] For example, the typical Schiff base ligand molecules are modified through oxygen atoms, or the complex formed after metallicization has significantly improved in terms of stability, antioxidant, and antibacterial effect.…”

Section: Introductionmentioning

confidence: 99%

“…At the same time, the symmetrical double salamo‐like ligand is a typical C‐type long‐chain ligand. It is easy to synthesize and easy to modify, and it may form a helical configuration in space, which is of great research value 12–15 …”

Section: Introductionmentioning

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

View full text Add to dashboard Cite

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.

show abstract

Supramolecular Self‐Assembly of Novel Double Chloride‐Bridging Trinuclear Ni(II) Mono‐Salamo‐Type Cluster: Experimental and Theoretical Analysis

Yuan,

Chen,

Liu

et al. 2024

Applied Organom Chemis

View full text Add to dashboard Cite

A mono‐salamo‐type ligand H2L was prepared to utilize 3‐methoxysalicylaldehyde and a semi‐salamo‐type compound, and its novel trinuclear Ni(II) cluster with two significantly various configurations in the solid state was obtained by reaction of H2L with Ni(II) ions. The trinuclear structure of the Ni(II) cluster was validated by x‐ray technique, and Ni(II) ions exhibited hexa‐coordinated twisted octahedrons. Its structural formula is [Ni3(L)2(μ2‐Cl)2(EtOH)2]. Chloride ions have also successfully double bridged to participate in coordination, and play a critical impact in the trinuclear configuration's stability and charge balance. Two solvent ethanol molecules are also participated in coordination. The coordination ratio of the ligand to the metal ion was verified to be 2:3 by UV–Vis absorption titration spectroscopy. The HOMO and LUMO energies of the frontline molecular orbitals of H2L and the complex were analyzed by DFT calculations, and the energy gap value of the ligand H2L was 4.29 eV, and that of the complex was 0.72 eV. The ligand combined with the metal decreased the energy gap value and produced a more active complex. Furthermore, Hirshfeld surface analysis visualizes the weak interactions of crystalline molecules, and these abundant weak interactions play an especially critical effect in the supramolecular structural self‐assembling. The fluorescent researches proclaimed that the fluorescence intensity of the cluster significantly decreased compared with the ligand, suggesting that this ligand and complex have greater promise for fluorescence sensing.

show abstract

AN EXPLORATION OF STRUCTURALLY CHARACTERIZED HETERO-TRINUCLEAR [Cu(II)2Ca(II)] FLEXIBLE-BIS(SALAMO)-TYPE COMPLEX

Cited by 74 publications

References 63 publications

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

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

Supramolecular Self‐Assembly of Novel Double Chloride‐Bridging Trinuclear Ni(II) Mono‐Salamo‐Type Cluster: Experimental and Theoretical Analysis

Contact Info

Product

Resources

About