New platinum and ruthenium Schiff base complexes for water splitting reactions

2015 ◽  
Vol 44 (32) ◽  
pp. 14483-14493 ◽  
Author(s):  
Chuanjun Wang ◽  
Yong Chen ◽  
Wen-Fu Fu
Keyword(s):  
Schiff Base ◽  
Visible Light ◽  
Water Splitting ◽  
Schiff Base Complexes ◽  
Schiff Base Ligands ◽  
Water Reduction

New Pt(ii) and Ru(ii) complexes with Schiff base ligands display effective visible-light catalytic water reduction and Ce4+-driven oxidation activities, respectively.

Linking Melem with Conjugated Schiff-Base Bond to Boost Photocatalytic Efficiency of Carbon Nitride for Overall Water Splitting

Nanoscale ◽  
2021 ◽  
Author(s):  
Hu Liu ◽  
Mengqi Shen ◽  
Peng Zhou ◽  
Zhi Guo ◽  
Xinyang Liu ◽  
...  
Keyword(s):  
Schiff Base ◽  
Visible Light ◽  
Water Splitting ◽  
Visible Light Irradiation ◽  
Carbon Nitride ◽  
Light Irradiation ◽  
Graphitic Carbon Nitride ◽  
Photocatalytic Efficiency ◽  
Metal Free ◽  
Overall Water Splitting

Developing an efficient single component photocatalyst for overall water splitting under visible-light irradiation is extremely challenging. Herein, we report a metal-free graphitic carbon nitride (g-CxN4)-based nanosheet photocatalyst (x = 3.2,...

Series of high spin mononuclear iron(iii) complexes with Schiff base ligands derived from 2-hydroxybenzophenones

2017 ◽  
Vol 41 (13) ◽  
pp. 5904-5915 ◽  
Author(s):  
Lukáš Pogány ◽  
Ján Moncol ◽  
Ján Pavlik ◽  
Ivan Šalitroš
Keyword(s):  
Schiff Base ◽  
High Spin ◽  
Coupled Systems ◽  
Schiff Base Complexes ◽  
Schiff Base Ligands ◽  
Mononuclear Iron ◽  
P Utilization

Utilization of 2-hydroxybenzophenone derivatives for the preparation of iron(iii) Schiff base complexes resulted in a series of high-spin, mostly antiferromagnetically coupled systems.

Synthesis and Characterization of Cr (III) Macrocyclic Schiff Base Complexes

2021 ◽  
pp. 269-274
Author(s):  
Dharmendra Kumar Sahu ◽  
Shekhar Srivastava
Keyword(s):  
Schiff Base ◽  
Molar Conductance ◽  
Photoelectron Spectra ◽  
Schiff Base Complexes ◽  
Squaric Acid ◽  
Schiff Base Ligands ◽  
X Ray ◽  
Trimesic Acid ◽  
Macrocyclic Schiff Base

Ninety Cr(III) macrocyclic Schiff base complexes of the type [CrL_n^(1-10) X_2 ]X(Where X = Cl- or NO-3 or CH3COO- and = macrocyclic Schiff base ligands derived from condensation of trimesic acid or p-phthalic acid or squaric acid with different aliphatic diamines) have been synthesised and characterised by elemental analysis; molar conductance; electronic spectra; IR; magnetic moment and XPS i.e. X-ray Photoelectron spectra data. An octahedral geometry was established for them.

scholarly journals Endoplasmic reticulum targeting tumour selective photocytotoxic oxovanadium(iv) complexes having vitamin-B6 and acridinyl moieties

2016 ◽  
Vol 45 (2) ◽  
pp. 783-796 ◽  
Author(s):  
Samya Banerjee ◽  
Akanksha Dixit ◽  
Anjali A. Karande ◽  
Akhil R. Chakravarty
Keyword(s):  
Endoplasmic Reticulum ◽  
Schiff Base ◽  
Visible Light ◽  
Vitamin B6 ◽  
Schiff Base Complexes ◽  
Endoplasmic Reticulum Targeting ◽  
Tumor Selective

Vitamin-B6 Schiff base complexes of oxovanadium(iv) having (acridinyl)dipyridophenazine show tumor selective visible light-induced photocytotoxicity by endoplasmic reticulum targeting1O2-mediated apoptosis.

SYNTHESIS, SPECTROSCOPIC INVESTIGATION AND CATALYTIC STUDIES OF NICKEL(II) AROMATIC AZOMETHINE COMPLEXES

2018 ◽  
Vol 80 (2) ◽  
Author(s):  
Shahrul Nizam Ahmad ◽  
Hadariah Bahron ◽  
Amalina Mohd Tajuddin ◽  
Syed Abdul Illah Alyahya Syed Abd Kadir
Keyword(s):  
Schiff Base ◽  
Aryl Halide ◽  
Coupling Reaction ◽  
Schiff Base Complexes ◽  
Sonogashira Reaction ◽  
Schiff Base Ligands ◽  
1H And 13C Nmr ◽  
Spectral Techniques ◽  
Chemical Structures ◽  
Sonogashira Coupling Reaction

Coupling reaction between aryl halide and terminal alkyne in Sonogashira coupling reaction is important due to its extensive application in the resynthesis of natural products, production of drugs, dyes, and polymers. Efforts to increase rate of reaction has involved exploration of new catalysts. The current catalysts such as phosphine-based complexes are costly, air-sensitive and environmentally harmful. Nickel(II) Schiff base complexes were synthesized by reacting aromatic Schiff base ligands 2,2'-((1E,1'E)-(1,2-phenylenebis(azanylylidene))bis(metha-nylylidene))diphenol (L1H), 2,2'-((1E,1'E)-(1,2-phenylenebis(azanylylidene))bis(methanylylidene))bis(4-fluorophenol) (L1F), and 2,2'-((1E,1'E)-(1,2-phenylenebis(azanylylidene))bis-(methanylylidene))bis(4-methylphenol) (L1M) with nickel(II) acetate tetrahydrate to form NiL1H, NiL1F and NiL1M. The chemical structures were elucidated through physicochemical and spectral techniques namely elemental analysis, melting point, FTIR, 1H and 13C NMR, magnetic susceptibility and molar conductivity. All nickel(II) complexes were tested as catalysts in homogenous Sonogashira reaction between iodobenzene and phenylacetylene in DMSO for 12 hours at 140 oC. NiLF, a new nickel(II) complex, converted the highest percentage of iodobenzene (91%) while NiLH and NiLC converted 78% and 83% of iodobenzene, respectively. 

scholarly journals Research on Biological Properties of Ruthenium (III) Heterocyclic Schiff Base Complexes

2019 ◽  
Vol 8 (12S) ◽  
pp. 332-334
Keyword(s):  
Schiff Base ◽  
Gel Electrophoresis ◽  
Biological Properties ◽  
Schiff Base Complexes ◽  
Spectroscopic Techniques ◽  
Tumor Cell Lines ◽  
Schiff Base Ligands ◽  
Antitumor Property ◽  
Metal Precursors

A set of ruthenium complexes of +3 oxidation state were synthesized with the available ruthenium precursors and the synthesized Schiff base ligands. The complexes are formed by the substitution of the ligand in the octahedral metal precursors. Samples are characterized using analytical as well as spectroscopic techniques. To ascertain pharmacological properties binding study with DNA were carried out. Further, cleavage studies were performed with gel electrophoresis. The in vitro antitumor property was analysed in HeLa tumor cell lines.

scholarly journals Synthesis and Characterization of New Palladium(II) Schiff Base Complexes Derived from β-Diketones and Diamines

2020 ◽  
Vol 32 (5) ◽  
pp. 1039-1042
Author(s):  
Mridula Gupta ◽  
Sheela M. Valecha
Keyword(s):  
Schiff Base ◽  
Schiff Base Complexes ◽  
Schiff Base Ligands ◽  
Visible Absorption ◽  
Oh Groups ◽  
Uv Visible ◽  
Coordinated Water ◽  
Heterocyclic Schiff Bases ◽  
Phenolic Oh Groups

A new series of heterocyclic Schiff bases were prepared from condensation of 1-phenyl-3-methyl-4-acetyl/benzoyl-pyrazolone with 4,4′-diaminodiphenylmethane and 4,4′-diaminodiphenyl ether, resulting in the formation of four novel Schiff base ligands. These ligands were then treated with ethanolic solution of PdCl2, to form corresponding palladium(II) complexes. These complexes were characterized by elemental analysis, IR, 1H NMR, TGA, magnetic susceptibility measurements and UV-visible absorption spectroscopy. All the Pd(II) complexes were found to have one coordinated water molecule. Schiff base ligands chelated with the metal atom through two donor sites N and O of azomethine (-C=N-) and phenolic (-OH) groups, respectively.

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