Mono, di and trinuclear photo-luminescent cadmium(II) complexes with N2O and N2O2 donor salicylidimine Schiff bases: Synthesis, structure and self assembly

Roy, Sumit; Chattopadhyay, Shouvik

doi:10.1016/j.ica.2015.04.018

Cited by 37 publications

(12 citation statements)

References 49 publications

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“…We have also calculated luminescence quantum yields of two Cd(II) polymeric compounds using quinine sulfate as the secondary standard (Φ=0.57 in water) which is clearly shown in Table . The calculated quantum yields are identical to other Cd(II) metal complexes –…”

Section: Resultssupporting

confidence: 68%

Syntheses, X-ray Crystal Structures, Photoluminescence Properties, Antimicrobial Activities and Hirshfeld Surface of Two New Cd(II) Azide/Thiocyanate Linked Coordination Polymers

Majumdar¹,

Babu

Das

et al. 2017

ChemistrySelect

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The reaction of cadmium(II) acetate salts with multisite coordinated compartmental Schiff base ligand N,N'-Bis(3methoxysalicylidenimino)-1,3-diaminopropane (H 2 L 1 ) in presence of co-lingand azido/thiocyanato afforded two new coordination polymers {[Cd 4 (N 3 ) 4 (L 1 ) 2 ]·H 2 O} n (1), [Cd 4 (SCN) 4 (L 1 ) 2 ] n (2). The obtained compounds, 1 and 2 are 1D and 2D coordination polymers respectively and they have been characterized by IR spectroscopy, UV-vis spectroscopy, elemental analysis, and single-crystal X-ray diffraction. The variation in the extended forms of 1 and 2 is governed by the kind of coligands utilized in the reaction. The complete structural study reveals that, in both cases the fully deprotonated ligand [L 1 ] 2À has utilized all six potential coordination sites to hold a pair of Cd(II) ions. Moreover, [N 3 ] À in 1 is coordinating to metal atom by both trans end-to-end (EE m-1,3) and end-on (EO or m-1,1) mode and [SCN] À is showing only end-to-end (EE m-1,3) coordination mode in 2. The photo luminescent properties and antimicrobial activities of the compounds 1 and 2 were investigated and discussed in details. Upon irradiation with UV light Cd(II) polymeric compounds 1-2 exhibit deep blue emissions of 448 À 451 nm subjected to dimethyl sulfoxide solution due to p!p* intraligand fluorescence. Apart from, as a complementary revelation, intermolecular interactions with respect to percentages of hydrogen bonding in the crystal structures of two Cd(II) polymeric compounds were quantified by Hirshfeld surface and fingerprint plots analysis.

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Section: Resultssupporting

confidence: 68%

Syntheses, X-ray Crystal Structures, Photoluminescence Properties, Antimicrobial Activities and Hirshfeld Surface of Two New Cd(II) Azide/Thiocyanate Linked Coordination Polymers

Majumdar¹,

Babu

Das

et al. 2017

ChemistrySelect

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“…The C=O and immine C=N stretch appeared at 1676 and 1624 cm −1 respectively. The new bands at 482 cm −1 and 434 cm −1 successively represent Cd-N and Cd-O, respectively [ 21 , 22 ] as shown in Table 1 .…”

Section: Resultsmentioning

confidence: 99%

Synthesis of New Naphthyl Aceto Hydrazone-Based Metal Complexes: Micellar Interactions, DNA Binding, Antimicrobial, and Cancer Inhibition Studies

et al. 2021

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In the present study, naphthyl acetohydrazide (HL) ligand was prepared and used for the synthesis of new six amorphous transition metal (Co(II), Ni(II), Cu(II), Zn(II), Pb(II), Cd(II)) complexes. All the compounds were characterized by elemental analysis, UV-vis, FT-IR, 1H- and 13C-NMR, and Matrix-Assisted Laser Desorption Ionization (MALDI). The solubilization study was carried out by estimating the interaction between the metal complexes with surfactants viz. sodium stearate (SS) and Cetyltrimethylammonium bromide (CTAB). UV-Visible spectroscopy was employed to determine partitioning and binding parameters, whereas electrical conductivity measurements were employed to estimate critical micellar concentration (CMC), the extent of dissociation, and free energy of micellization. The CT-DNA interaction of synthesized compounds with DNA represents the major groove binding. The synthesized ligand and metal complexes were also tested against bacterial and fungal strains and it has been observed that Cu(II) complex is active against all the strains except Candida albicans, while Cd(II) complex is active against all bacterial and fungal strains except Pseudomonas. Among all compounds, only the Pd(II) complex shows reasonable activity against cervical cancer HeLa cell lines, representing 97% inhibition.

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“…The appearance of a strong band at 2044 cm −1 in the IR spectrum of 2 indicates the presence of monodentate azide . Strong bands at 2926 cm −1 and 3451 cm −1 in the IR spectrum are assigned as alkyl C−H and N−H stretching vibrations in complex 2 respectively …”

Section: Resultsmentioning

confidence: 99%

Synthesis, Characterization, DFT Study, Catechol Oxidase and Phenoxazinone Synthase Like Activities of Two New Manganese(IV) Schiff Base Complexes

et al. 2017

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Two manganese(IV) complexes [Mn(L) 2 ](ClO 4 ) 2 ·0.88H 2 O (1) and [Mn(HL) 3-(N,N-dimethylamino)propyliminomethyl-4-bromophenol] have been prepared and characterized. Manganese(IV) in each complex assumes distorted octahedral geometry. Structural features have been examined in detail that reveal the formation of interesting supramolecular networks generated through non-covalent forces including CÀH···p and Br···Br interactions. These interactions have been studied energetically by means of theoretical DFT calculations using several computational tools, including Bader's "atoms-in-molecules" (AIM) theory. Both complexes are found to show catechol oxidase and phenoxazinone synthase like activities.

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Mono, di and trinuclear photo-luminescent cadmium(II) complexes with N2O and N2O2 donor salicylidimine Schiff bases: Synthesis, structure and self assembly

Cited by 37 publications

References 49 publications

Syntheses, X-ray Crystal Structures, Photoluminescence Properties, Antimicrobial Activities and Hirshfeld Surface of Two New Cd(II) Azide/Thiocyanate Linked Coordination Polymers

Syntheses, X-ray Crystal Structures, Photoluminescence Properties, Antimicrobial Activities and Hirshfeld Surface of Two New Cd(II) Azide/Thiocyanate Linked Coordination Polymers

Synthesis of New Naphthyl Aceto Hydrazone-Based Metal Complexes: Micellar Interactions, DNA Binding, Antimicrobial, and Cancer Inhibition Studies

Synthesis, Characterization, DFT Study, Catechol Oxidase and Phenoxazinone Synthase Like Activities of Two New Manganese(IV) Schiff Base Complexes

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