Synthesis, characterizations and single crystal structure of di-nuclear azido-bridged Cd(II) coordination polymer with Schiff base precursor (H2LpentOMe): DFT, fluorescence, solvatochromism and in vitro antimicrobial assay

Majumdar, Dhrubajyoti; Das, Dhiraj; Sreejith, S. S.; Nag, Sudip; Dey, Swapan; Mondal, Surajit; Bankura, Kalipada; Mishra, Dipankar

doi:10.1016/j.ica.2019.119069

Cited by 17 publications

(9 citation statements)

References 119 publications

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“…22 Fluorescence spectra of Cd-L shows similar changes with Zn-L, which may be due to their similar molecular structures. 32 Due to the complexation of H 4 L with Eu(III) ions, the intensity of the peak at 417 nm is reduced, accompanied by a slight redshi, and a new peak centred on l em ¼ 615 nm appears, which is the characteristic peak of the Eu(III) complex. 33,34 In the meanwhile, the complex Eu-L exhibits a red luminescence while the free ligand H 4 L shows a bluegreen luminescence in DMF solution under the irradiation of l ¼ 375 nm ultraviolet light.…”

Section: Optical Propertiesmentioning

confidence: 99%

Synthesis, crystal structures, and luminescent properties of Zn(ii), Cd(ii), Eu(iii) complexes and detection of Fe(iii) ions based on a diacylhydrazone Schiff base

Han

et al. 2020

RSC Adv.

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Section: Optical Propertiesmentioning

confidence: 99%

Synthesis, crystal structures, and luminescent properties of Zn(ii), Cd(ii), Eu(iii) complexes and detection of Fe(iii) ions based on a diacylhydrazone Schiff base

Han

et al. 2020

RSC Adv.

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“…Cu (II) ion is adsorbed as cations and enters the bacterial cell membrane, causing protein metabolism disorder, thus preventing cell division. [75][76][77][78][79][80] From Figure 8b (a and b), only the ligand was added to the bacterial disk; the E. coli presents the stick shape; simultaneously, after adding Cu 2+ ions, E. coli begun to shrink and destroy after 6 h due to the strong antibacterial abilities of the formed Cu (II) complexes in Figure 8b (c and d).…”

Section: Hirshfeld Surfaces Analysesmentioning

confidence: 99%

“…39 There are many applications about the different complexes in the world. [40][41][42][43][44][45] Herein, two structurally characterized Cu (II) complexes, [Cu 4 (L) 2 (EtOH) 2 ](ClO 4 ) 2 Á2EtOHÁ2CHCl 3 and [{Cu 4 (L) 2 (EtOH) 2 }{Cu 4 (L) 2 (HNO 3 ) 2 }](NO 3 ) 4 Á3EtOHÁ3MeOH, are formed by the basis of previous studies. Most notably, this ligand combined with Cu (II) atoms to form homotetranuclear complexes was successfully applied to antibacterial properties, revealing the potential values of salamo-based Cu (II) complexes in field that is not only in recognition or catalysis.…”

Section: Introductionmentioning

confidence: 99%

Exploring two helical centrosymmetric homotetranuclear Cu (II) bis (salamo)‐based complexes

Dou

Tong

et al. 2022

Applied Organom Chemis

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Two helical centrosymmetric homotetranuclear Cu (II) complexes, [Cu 4 (L) 2 (EtOH) 2 ](ClO 4 ) 2 Á2EtOHÁ2CHCl 3 (1) and [{Cu 4 (L) 2 (EtOH) 2 }{Cu 4 (L) 2 (HNO 3 ) 2 }] (NO 3 ) 4 Á3EtOHÁ3MeOH (2), were synthesized by the reactions of a symmetric bis (salamo)-based ligand H 3 L with Cu(ClO) 2 Á6H 2 O and Cu(NO) 3 Á3H 2 O, respectively, and certified by elemental analyses, UV-Visible absorption spectra, infrared spectra and single-crystal X-ray analysis techniques. X-ray crystal structure analyses reveal that four Cu (II) atoms of complex 1 are attached to two deprotonated ligand (L) 3À units with the help of two coordinated ethanol molecules, and then forming a helical centrosymmetric complex by H-bonding and πÁ Á Áπ interactions. While complex 2 unit cell contains two crystallographically independent but chemically identical homotetranuclear complexes (molecules A and B), eight Cu (II) atoms are coordinated by four deprotonated ligand (L) 3À units. The coordination mode of four Cu (II) atoms from molecule A is the same as complex 1; at the same time, oxygen atoms on nitrates are involved in the coordination of another four Cu (II) atoms from molecule B. The short-range interactions in complexes 1 and 2 were calculated by Hirshfeld surfaces analyses. The molecular orbital energy levels, molecular stabilities of complexes 1 and 2 were analyzed by DFT calculations. In addition, antibacterial assays were also investigated in detail.

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“…The as-synthesis ligand and various types of derivatized transition metal complex show the different characteristic properties due to the few transition because of the ligand to metal transition. [42][43][44] the solution was prepared in an aqueous solution of the ethanol. The ligand and complex with dispersible in the ethanol solution and further used as fluorescence at the normal room temperature.…”

Section: Fluorescence Studiesmentioning

confidence: 99%

Synthesis and Properties of Transition Metal Complexes Containing Thiazole Derived Schiff Base Ligands

et al. 2022

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Although ligands containing four donor atom are tetradentate ligand of Thiazole moiety which coordinated with transition metal ions. The complex of m-NTA and m-MTA are studies by different spectral technique. Here we are synthesizing the thiazole derivatives Schiff base as a ligands, L1 = N,N'E,N,N'E)-N,N'-(1,3- phenylene bis (methanylylidene) bis (5-nitrobenzo [d] thiazo L2-amine (NTA) and L2 = N,N'E,N,N'E)-N,N'-(1,3-phenylene bis (methanylylidene) bis (5-methyl thiazo L2-amine (MTA), and coordinated with transition metals ( Co, Ni, Cu, Zn, and Cd) using lone-pair coordination method. These synthesized complexes were identified by FT-IR spectra, UV-Visible spectra, mass spectra and cyclic voltammetry and having characteristic absorption and potential high-performance CV which show a different type of stable transition metal complex. The electrochemical study was also carried out for these complexes which show the clear redox behaviour of complexes. The significant change in CV properties is exhibited by CV graphs where we can see a prominent reduction peaks M (II) to M is showing at -0.4 V . We found that in the case of L2 there is less prominent reduction peaks observed in comparison to L1.

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Synthesis, characterizations and single crystal structure of di-nuclear azido-bridged Cd(II) coordination polymer with Schiff base precursor (H2LpentOMe): DFT, fluorescence, solvatochromism and in vitro antimicrobial assay

Cited by 17 publications

References 119 publications

Synthesis, crystal structures, and luminescent properties of Zn(ii), Cd(ii), Eu(iii) complexes and detection of Fe(iii) ions based on a diacylhydrazone Schiff base

Synthesis, crystal structures, and luminescent properties of Zn(ii), Cd(ii), Eu(iii) complexes and detection of Fe(iii) ions based on a diacylhydrazone Schiff base

Exploring two helical centrosymmetric homotetranuclear Cu (II) bis (salamo)‐based complexes

Synthesis and Properties of Transition Metal Complexes Containing Thiazole Derived Schiff Base Ligands

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