Synthesis, Characterization, and Antibacterial Activity of Complexes of Hg(II) with Mixtures of 3-Hydrazonoindolin-2-one and Diphosphine, or Diimine Ligands

Irzoqi, Ahmed A.; Salih, Mahmood Maher; Jirjes, Hayfa M.; Mensoor, Montazer K.

doi:10.1134/s1070363220060213

Cited by 7 publications

(7 citation statements)

References 8 publications

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“…The ν(CN) band of complex 3 was shifted to a lower frequency because of the unrestrained vibration of CN outside the thiazole ring compared to the endocyclic vibration . The ν(P–Ar) bands of complexes 1 – 3 appeared at 1431, 1431, and 1434 cm –1 , respectively, whereas the corresponding ν(P–C) bands appeared at 1099, 1103, and 1105 cm –1 . , …”

Section: Resultsmentioning

confidence: 96%

“…The 31 P NMR spectra of complexes 1 and 2 each exhibited an AX spin system with two doublets each at δP = 43.89 and 33.93 ppm and 54.65 and 37.66 ppm, which indicates that the two phosphorus atoms are nonequivalent; that is, one phosphorus atom is trans to the oxygen atom and the other phosphorus atom is trans to the nitrogen atom, in the square-planar configuration around the palladium(II) ion, , whereas the spectrum of complex 3 showed a singlet at δP = 57.70 ppm, indicating two equivalent phosphorus atoms that are trans to the nitrogen atom in the ligand L.…”

Section: Resultsmentioning

confidence: 99%

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Synthesis and Structural Characterization of Palladium(II) Mixed-Ligand Complexes of N-(Benzothiazol-2-yl)benzamide and 1,2-Bis(diphenylphosphino)ethane

et al. 2021

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Three novel palladium(II) mixed-ligand complexes of N-(benzothiazol-2-yl)benzamide (HL) and 1,2-bis(diphenylphosphino)ethane (dppe), [Pd(HL)(dppe)]Cl2 (1), [Pd(L)(dppe)]Cl (2), and [Pd(L)2(dppe)] (3), were synthesized and fully characterized using Fourier transform infrared, 1H, 13C, and 31P NMR, and molar conductivity measurements. Complex 3 was characterized by single-crystal X-ray diffraction. The ligand HL showed three different coordination modes: a neutral bidentate chelate bound through the endocyclic nitrogen and exocyclic oxygen atoms in 1, a negatively charged L bound as a bidentate chelate through the endocyclic nitrogen and negatively charged exocyclic oxygen atoms in 2, and a monodentate bound through the negatively charged endocyclic nitrogen atom in 3.

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

Synthesis and Structural Characterization of Palladium(II) Mixed-Ligand Complexes of N-(Benzothiazol-2-yl)benzamide and 1,2-Bis(diphenylphosphino)ethane

et al. 2021

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“…Lastly, the spectrum showed a single signal at δH=12.56 ppm, attributed to the (NH) group, with an integration of one proton. Moreover, the 31 P-NMR spectrum showed a singlet signal at a positive value of δP=37.41 ppm, indicating that the phosphorus atoms in dppe are equivalent and bridged with the Hg ion in the dinuclear complex [19]. The complex (3) exhibited a broad single signal at δH=1.86 ppm, which was attributed to the two protons of the (CH 2 ) intermediate group in (dppp) with an integration of two protons.…”

Section: Resultsmentioning

confidence: 97%

Synthesis, Characterization, and Biological Evaluation of New Hg(II) Complexes of (2-(2-(2-chlorobenzylidene)hydrazineyl)benzothiazole with Phosphine Ligands

Ali,

Irzoqi,

Singh

2024

Tikrit J. Pure Sci.

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The Synthesis of new Hg(II) complexes of (2-(2-(2-chlorobenzylidene) hydrazinyl)benzothiazole) (CHB) with phosphine ligands (dppm, dppe, dppp, and dppb) were synthesized, resulting in complexes with the following formulas: [Hg2(CHB)2(µ-dppm)2]Cl4 or [Hg2(CHB)2(µ-phosphine)Cl2]Cl2 (where the phosphines are dppe, dppp and dppb). The suggested geometry around the metal ion is tetrahedral, with the (CHB) ligand acting as a bidentate ligand through the N atoms, while the phosphine ligands act as bidentate bridging ligands through the P atoms. The prepared complexes were characterized various analytical techniques including molar conductivity, infrared spectra, 31P{1H}-NMR, 1H-NMR, and 13C-NMR spectra. Additionally, the biological effectiveness of these complexes was evaluated against four types of bacteria, namely Streptococcus faecalis, Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa, has been assessed. Some of the complexes exhibited an inhibition level in the range of (5-10 mm) at the minimum inhibitory concentration indicating potential antibacteria properties.

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“…13 P{ 1 H}NMR spectrum of complex (1) displayed tow isomers, the mine isomer (1a) showed singlet at δ28.13ppm this indicated that the two phosphorus atoms were equivalent and the dppm ligand behaved as a bridge bidentate ligand, 26 as shown as (Figure 3), the other isomer (1b) showed two doublets at 33.35ppm ( 2 JPA-PX = 50.05 Hz), -29.28 ppm ( 2 JPX-PA = 50.69 Hz), this indicated that the two phosphorus atoms were nonequivalent and the dppm ligand behaved as a monodentate ligand through the P atom that positive chemical shift. The 13 P{ 1 H}NMR of complex (2), as shown as (Figure 4), displayed tow isomers, the first isomer (2a) showed singlet at δ31.43ppm, this indicated that the two phosphorus atoms were equivalent and the dppe ligand behaved as a bidentate ligand.…”

Section: Infrared Spectramentioning

confidence: 99%

Synthesis, Characterization and Antibacterial Activity of some Hg(II) Complexes with Mixed Benzyl 2-(2-oxoindolin-3-ylidene) Hydrazinecarbodithioate and Phosphines or Amines Ligands

2021

TJNPR

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activity. 15,16 The anticancer evaluation of a substantial number of metal complexes containing isatin-based ligands has been described as antitumor compounds, especially Mg(II), Co(II), Ni(II), and Cu(II) complexes, with different coordination geometries and reactivities. 17 Materials and MethodsAll the chemicals, reagents and solvents for the synthesis of compounds were supplied and used without more purification. The melting point of the prepared complexes was recorded on Automatic (SMP30) melting point apparatus. The molar conductivity of 10 -3 M freshly DMSO solution of prepared complexes was measured using (Starter 3100c) digital conductivity meter at 25 o C. Microanalyses for carbon, hydrogen, nitrogen and sulfur were carried out using an Elementar vario El III CHN elemental analyzer. The IR spectra of the prepared complexes as KBr pellets were recorded using a Shimadzu FT-IR 8400S spectrophotometer (400-4000 cm -1 ). NMR spectra were acquired on a Bruker 400 MHz spectrometer in DMSO-d6 as a solvent. The isolates of the pathological bacteria that were used in the research obtained from the laboratories of the Department of Life Sciences in the College of Education for Pure Sciences at the University of Tikrit. Preparation of benzyl 2-(2-oxoindolin-3-ylidene)hydrazinecarbodithioate (BHT) ligandThe benzyl 2-(2-oxoindolin-3-ylidene)hydrazinecarbodithioate (BHT) Prepared by two steps: First step: Preparation of S-Benzyldithiocarbazate (SBDTC). This compound was synthesized as previously reported, 18 the melting point was 124 o C where it was at 124-125 o C in the literature. 19 Second step: To the hot solution of S-benzyldithiocarbazate, SBDTC (1.36g, 0.01 mol) in ethanol (35 mL), an equimolar amount of isatin

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Synthesis, Characterization, and Antibacterial Activity of Complexes of Hg(II) with Mixtures of 3-Hydrazonoindolin-2-one and Diphosphine, or Diimine Ligands

Cited by 7 publications

References 8 publications

Synthesis and Structural Characterization of Palladium(II) Mixed-Ligand Complexes of N-(Benzothiazol-2-yl)benzamide and 1,2-Bis(diphenylphosphino)ethane

Synthesis and Structural Characterization of Palladium(II) Mixed-Ligand Complexes of N-(Benzothiazol-2-yl)benzamide and 1,2-Bis(diphenylphosphino)ethane

Synthesis, Characterization, and Biological Evaluation of New Hg(II) Complexes of (2-(2-(2-chlorobenzylidene)hydrazineyl)benzothiazole with Phosphine Ligands

Synthesis, Characterization and Antibacterial Activity of some Hg(II) Complexes with Mixed Benzyl 2-(2-oxoindolin-3-ylidene) Hydrazinecarbodithioate and Phosphines or Amines Ligands

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