Synthesis, structure and catalytic activities of nickel(II) complexes bearing N4 tetradentate Schiff base ligand

Sarkar, Sushanta; Nag, Sanat Kumar; Chattopadhyay, Asoke P.; Dey, Kamalendu; Sarkar, Avijit; Sarkar, Sougata

doi:10.1016/j.molstruc.2018.01.035

Cited by 16 publications

(10 citation statements)

References 49 publications

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“…The stoichiometrically controlled condensation reaction of diacetylmonoxime (dam) (1.01 g, 10 mmol) and diethylenetriamine (dien) (1.04 g, 10 mmol) in 1:1 molar ratio in methanol (15 ml) on constant stirring for 45 min at room temperature and then refluxing for 2 h on water bath (Figure 2) afforded the monocondensed amine-imine-oxime Schiff base ligand 3-((2-((2-aminoethyl)-amino)ethyl)imino) butan-2-one oxime (L 1 ). Yield is 55% [29].…”

Section: Synthesis Of the Ligands 21 Mono-imine Schiff Base (L 1 ) Lmentioning

confidence: 99%

“…Pure crystals (single) were obtained from the slow evaporation of the mother liquor. Yields of the complex 1 in the routes 1 and 2 are 85% and 82% respectively [29].…”

Section: Synthesis Of Metal Complexes 31 Metal Complexes With Mono-imentioning

confidence: 99%

“…The neutral monomeric complex [Ni(L 1 )(NCS) 2 ](1) has been found to possess octahedral geometry where central Ni(II) is coordinated by the neutral ligand L 1 with tetradentate N 4 binding mode and two N-bonded thiocyanate ions occupying the cis-position. Figure 12 depicts the molecular structure of the nickel (II) complex 1 [29].…”

Section: Metal Complexes With Thio-hydrazone Schiff Base (H 2 L 3 ) Lmentioning

confidence: 99%

“…The [Ni(L 1 )(NCS) 2 ](1) exhibits good catalytic activity towards the oxidation of styrene in the presence of TBHP which leads to the formation of benzaldehyde as a major product with small amount of styrene oxide as shown in Figure 14.By varying solvents, reaction time, temperature, and substrate-to-oxidant ratio, a successful conversion of 70% of the styrene was reached at the optimum condition [29].…”

Section: Catalytic Activity Of Complexmentioning

confidence: 99%

“…Besides, the solid-state properties, e.g., variable temperature conductivity, and optical properties of such complexes are also producing very interesting results which are extremely important in materials chemistry. Very recently the comparison of different observed physical properties with the theoretically predicted values is being done by the use of DFT approach [29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

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Crystal Structure and Solid-State Properties of Metal Complexes of the Schiff Base Ligands Derived from Diacetylmonoxime: A Brief Review

Mandal¹,

Das²,

Dey³

et al. 2020

Stability and Applications of Coordination Compounds

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The fabulous advancement of a large section of modern coordination chemistry depends upon different kinds of strategically designed and functionally tuned ligand systems; Schiff base ligands play a pivotal role among them. Such Schiff bases become more motivating when they are designed to be synthesized using very simple organic molecules. This paper reviews our work on a family of three functionally different types of Schiff base ligands, derived from diacetylmonoxime, which have been employed to synthesize mononuclear metal complexes with various binding modes of ligands and topologies around the metal centers. Such Schiff base ligands have been synthesized by reacting diacetylmonoxime with diethylenetriamine, 1,3-diaminopropane-2-ol, and morpholine N-thiohydrazide. The synthesized Schiff bases and the metal complexes of such "privileged ligands" show many interesting supramolecular coordination architectures involving different weak forces, e.g., H-bonding, C-HÁÁÁπ interactions, etc.

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Section: Synthesis Of the Ligands 21 Mono-imine Schiff Base (L 1 ) Lmentioning

confidence: 99%

“…Pure crystals (single) were obtained from the slow evaporation of the mother liquor. Yields of the complex 1 in the routes 1 and 2 are 85% and 82% respectively [29].…”

Section: Synthesis Of Metal Complexes 31 Metal Complexes With Mono-imentioning

confidence: 99%

Section: Metal Complexes With Thio-hydrazone Schiff Base (H 2 L 3 ) Lmentioning

confidence: 99%

Section: Catalytic Activity Of Complexmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Crystal Structure and Solid-State Properties of Metal Complexes of the Schiff Base Ligands Derived from Diacetylmonoxime: A Brief Review

Mandal¹,

Das²,

Dey³

et al. 2020

Stability and Applications of Coordination Compounds

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Synthesis of 2‐Pyridyl Based N(1)‐Substituted Thiosemicarbazonates of Nickel(II) as Bioactive Materials against MRSA, S. aureus, S. typhimurium 2, and K. pneumonia

Kaushal,

Bala,

Lobana

et al. 2024

ChemistrySelect

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In this investigation, the bio‐activity and biosafe potential of thiosemicarbazonates of nickel(II) as well as that of ligands are described. Reactions of nickel(II) acetate with a series of thiosemicarbazones, {R1(py)C2=N3‐N2(H)‐C1(=S)‐NHR; R1=py, Me, H and Ph; R=H, Me, Et, Ph}, led to the loss of acidic hydrazinic N2(H) protons, and resulted in the formation of six‐coordinated complexes of stoichiometry, [Ni(N,N,S−L)2], where anionic N,N,S−L=py2tsc‐NHR, 1–4; apytsc‐NHR, 5–8; pytsc‐NHR, 9–12 and bpytsc‐NHR, 13–16. All these complexes have been characterized using analytical data, IR and UV‐visible spectroscopy and ESI‐mass spectrometry. The single crystal X‐ray crystal structure of several complexes {2(Me), 7(Et), 11(Et), 12(Ph), 13(H),14(Me) and 15(Et)} were also determined. Thio‐ligands coordinate to nickel(II) through pyridyl nitrogen‐N4, azomethine nitrogen‐N3 and thiolato sulfur atoms, resulting in the formation of homoleptic complexes with octahedral structures. Complexes 1–16 and uncoordinated thiosemicarbzones, were evaluated for their antimicrobial activity, in terms of ZOI, MIC, time kill assay and in vitro percent cell viability MTT assay, against clinical isolate methicillin‐resistant Staphylococcus aureus (MRSA), Staphylococcus aureus (MTCC740), Klebsiella pneumonia (MTCC109), Salmonella typhimurium (MTCC1251), and Candida albicans (MTCC227), a yeast. Both the ligands and their metal complexes exhibited moderate to high bioactivity, and were found to be biosafe with high cell viability, 88–92 %, in several cases.

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Water oxidation by a nickel complex: New challenges and an alternative mechanism

Kalantarifard

Allakhverdiev

Najafpour

2020

International Journal of Hydrogen Energy

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Synthesis, structure and catalytic activities of nickel(II) complexes bearing N4 tetradentate Schiff base ligand

Cited by 16 publications

References 49 publications

Crystal Structure and Solid-State Properties of Metal Complexes of the Schiff Base Ligands Derived from Diacetylmonoxime: A Brief Review

Crystal Structure and Solid-State Properties of Metal Complexes of the Schiff Base Ligands Derived from Diacetylmonoxime: A Brief Review

Synthesis of 2‐Pyridyl Based N(1)‐Substituted Thiosemicarbazonates of Nickel(II) as Bioactive Materials against MRSA, S. aureus, S. typhimurium 2, and K. pneumonia

Water oxidation by a nickel complex: New challenges and an alternative mechanism

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