Unprecedented bi- and trinuclear palladium(II)-sodium complexes from a salophen-type Schiff base: Synthesis, characterization, thermal behavior, and in vitro biological activities

Goudarzi, Atousa; Saeidifar, Maryam; Aghapoor, Kioumars; Mohsenzadeh, Farshid; Fenske, Dieter; Fuhr, Olaf; Ghassemzadeh, Mitra

doi:10.1016/j.molstruc.2022.134224

Cited by 9 publications

(5 citation statements)

References 118 publications

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“…Besides, the existence of the latter and additional transition at 432 nm represents another order of π-electronic conjugation (π-electrons). On the other hand, these IL transitions in Cu (II) complex can observe at 359 nm, which, in comparison to the ligand, it expressed lower intensities and a redshift 70 . The monoclinic phases and highly crystalline nature of the synthesized samples are verified by the first sharp rise, in the absorbance spectra below 360 nm 71 .…”

Section: Resultsmentioning

confidence: 92%

Synthesis, characterization, and nonlinear optical properties of copper (II) ligand Schiff base complexes derived from 3-Nitrobenzohydrazide and benzyl

Tahmasbi,

Jafari,

Nikoo

2023

Sci Rep

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A new series of Cu (II) complexes were prepared using Schiff base ligand of N–N′-(1,2-diphenyl ethane-1,2-diylidene)bis(3-Nitrobenzohydrazide). The prepared ligand and Cu (II) complex were characterized using various physicochemical investigations such as X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), and Energy dispersive X-ray analysis (EDX), Fourier Transform Infrared (FT-IR), $${}^{13}C$$ 13 C Nuclear Magnetic Resonance (NMR), $${}^{1}H$$ 1 H NMR, Diffuse Reflectance Spectroscopy (DRS), Vibrating Sample Magnetometer (VSM), and Z-Scan technique (Nonlinear optical (NLO) properties). In addition, the prepared samples have been examined for their NLO characteristics with the help of the Density Functional Theory calculations which proved that the Cu (II) Complex is more polarized than Ligand. According to XRD and FESEM results, the nanocrystalline nature of the samples is confirmed. The metal-oxide bond assigned in the functional studies by FTIR. Magnetic studies demonstrate weak ferromagnetic and paramagnetic nature for Cu (II) complex and diamagnetic nature for the ligand, respectively. DRS spectrum exhibited higher reflectance for Cu (II) than the ligand. The band gap energies of the synthesized samples were estimated by employing the Tauc relation and Kubelka–Munk theory on reflectance data and found to be 2.89 eV and 2.67 eV for Cu (II) complex and ligand, respectively. Extinction coefficient and refractive index values were calculated using the Kramers–Kronig method. The z-scan technique was applied to estimate the NLO properties by a 532 nm Nd:YAG laser.

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Section: Resultsmentioning

confidence: 92%

Synthesis, characterization, and nonlinear optical properties of copper (II) ligand Schiff base complexes derived from 3-Nitrobenzohydrazide and benzyl

Tahmasbi,

Jafari,

Nikoo

2023

Sci Rep

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“…Goudarzi et al, (2022) [ 92 ] described two bi- and trinuclear palladium(II)-sodium complexes, {[PdL]Na(NO 3 )(EtOH)} ( 33 ) and {[PdL] 2 Na}Cl ( 34 ) based on salophen-type SB, N , N ’-(1,2-phenylene)-bis(3-methoxysalicylideneimine). The antibacterial activity of the two complexes was studied against one Gram-negative strain ( E. coli ATCC 25922) and one Gram-positive strain ( S. aureus ATCC 6538) by the direct colony method.…”

Section: Binuclear Sbs Complexesmentioning

confidence: 99%

Metal Complexes with Schiff Bases: Data Collection and Recent Studies on Biological Activities

Sinicropi

Ceramella

Iacopetta

et al. 2022

IJMS

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Metal complexes play a crucial role in pharmaceutical sciences owing to their wide and significant activities. Schiff bases (SBs) are multifaceted pharmacophores capable of forming chelating complexes with various metals in different oxidation states. Complexes with SBs are extensively studied for their numerous advantages, including low cost and simple synthetic strategies. They have been reported to possess a variety of biological activities, including antimicrobial, anticancer, antioxidant, antimalarial, analgesic, antiviral, antipyretic, and antidiabetic ones. This review summarizes the most recent studies on the antimicrobial and antiproliferative activities of SBs-metal complexes. Moreover, recent studies regarding mononuclear and binuclear complexes with SBs are described, including antioxidant, antidiabetic, antimalarial, antileishmanial, anti-Alzheimer, and catecholase activities.

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“…It is an Mn (III) complex with N,N ′‐ bis (3,5‐di‐ tert ‐butylsalicylidene)‐1,2‐cyclohexanediamine used for many types of prochiral conjugated olefins in the oxidizing agent presence 31 . Even it has been used for the epoxidation of chiral monoterpenic olefins, including limonene and pinene 10,23,32 …”

Section: Introductionmentioning

confidence: 99%

“…31 Even it has been used for the epoxidation of chiral monoterpenic olefins, including limonene and pinene. 10,23,32 Although dimeric Salen Mn (III) complexes as catalysts in asymmetric epoxidation reactions exhibit outstanding catalytic behavior, they still need to be scaled up to the industrial level due to their operation in a homogeneous phase. New analog structures of the Salen Mn (III) complex as catalysts may offer a better approach to these reaction types.…”

Section: Introductionmentioning

confidence: 99%

Diastereoselective synthesis of cis‐1,2‐limonene oxide using dimeric Salen‐Mn (III) complexes as reusable catalysts

Cubillos,

Rubio,

Murcia

et al. 2024

Applied Organom Chemis

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Diastereoselective epoxidation of R‐(+)‐limonene using achiral and racemic dimeric Salen‐Mn (III) complexes as catalysts ((1a) and (1b)) and in situ generated dimethyldioxirane (DMDO) as an oxidizing agent was explored. The best reaction parameters were: (i) KHSO5/R‐(+)‐limonene molar ratio = 0.25; (ii) R‐(+)‐limonene, catalyst molar ratio = 20, (iii) absence of nitrogenous bases (axial ligands), (iv) ambient temperature (20°C), (v) racemic dimeric catalyst, and (vi) low amount of acetone (4 mL). Under these reaction conditions isolated yield to 1,2‐(+)‐limonene oxide and diastereomeric excess (d.e), and diastereomeric yield excess (d.y.e) to major diastereomer (cis‐epoxide) was 96%, 77%, and 72%, respectively. Moreover, the catalyst was segregated into a solid phase, while products remained in the liquid phase, allowing the easy separation of the catalyst and reaction products. Consequently, the catalyst could be recycled up to three times without appreciable loss of its initial catalytic activity.

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Unprecedented bi- and trinuclear palladium(II)-sodium complexes from a salophen-type Schiff base: Synthesis, characterization, thermal behavior, and in vitro biological activities

Cited by 9 publications

References 118 publications

Synthesis, characterization, and nonlinear optical properties of copper (II) ligand Schiff base complexes derived from 3-Nitrobenzohydrazide and benzyl

Synthesis, characterization, and nonlinear optical properties of copper (II) ligand Schiff base complexes derived from 3-Nitrobenzohydrazide and benzyl

Metal Complexes with Schiff Bases: Data Collection and Recent Studies on Biological Activities

Diastereoselective synthesis of cis‐1,2‐limonene oxide using dimeric Salen‐Mn (III) complexes as reusable catalysts

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