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Construction of an Unprecedented Homodinuclear Copper(II) Salamo-Based Complex

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Abstract

A homo-dinuclear Cu(II) complex [Cu2(L)2] with the stoichiometric ratio of Cu(II) : (L)2– = 2 : 2 was synthesized by the reaction of the ligand (4-methyl-6-aldehyde-6′-methoxy-2,2′-[ethylenediyldioxybis(nitrilomethylidyne)]diphenol) with Cu(OAc)2·H2O in the mixed CH2Cl2–MeOMe–EtOH solution (an unexpected ligand is the intermediate of condensation reaction of starting ligand with acetone). The Cu(II) complex was characterized by elemental analysis, IR, UV-Vis and X-ray crystallography. The Cu(II) complex crystallizes in monoclinic space group P21/n and consists of two Cu(II) atoms and two completely deprotonated ligand (L)2– units. Through the analysis of intermolecular interactions, the Cu(II) complex units can form a 2D supramolecular structure through intermolecular hydrogen bonds and C–H···π interactions, respectively, meanwhile, the molecular interactions were quantitatively studied by Hirshfeld surfaces analyses. The fluorescence properties and DFT calculations were performed.

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Funding

This work was supported by the Science and Technology Program of Gansu Province (project no. 21YF5GA057) and the National Natural Science Foundation of China (project no. 21761018).

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Authors and Affiliations

  1. School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, 730070, Lanzhou, China

    Y.-F. Ding, Y.-X. Wei, W.-D. Li, L. Wang, M. Li & W.-K. Dong

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  1. Y.-F. Ding
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  2. Y.-X. Wei
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  3. W.-D. Li
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  4. L. Wang
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  5. M. Li
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Correspondence to L. Wang or W.-K. Dong.

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Ding, YF., Wei, YX., Li, WD. et al. Construction of an Unprecedented Homodinuclear Copper(II) Salamo-Based Complex. Russ J Gen Chem 93, 418–428 (2023). https://doi.org/10.1134/S1070363223020251

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