نتایج جستجو برای: oxygen containing ligand

تعداد نتایج: 641052  

Journal: :Proceedings of the National Academy of Sciences 1977

Journal: :Physical chemistry chemical physics : PCCP 2011
Uwe Hahn Francesca Setaro Xavier Ragàs Angus Gray-Weale Santi Nonell Tomas Torres

A series of new metallodendrimers built around a ruthenium phthalocyanine core has been prepared. Employing a convergent synthetic strategy, pyridine-containing ligands were prepared and then assembled onto the ruthenium phthalocyanine through axial ligand coordination. The growing shell of oligoethylene glycol chains surrounding the lipophilic core allows solubilisation in water. Photophysical...

Seed storage proteins are synthesized as sources of carbon, nitrogen and sulfur for the next generation of plants. Reactive oxygen species serve as second messengers for signal transduction; however, molecular targets of oxidant signaling have not been defined. Here, many researchers showes that ligand–receptor mediated signaling promotes reactive oxygen species– dependent protein carbonylation...

Seed storage proteins are synthesized as sources of carbon, nitrogen and sulfur for the next generation of plants. Reactive oxygen species serve as second messengers for signal transduction; however, molecular targets of oxidant signaling have not been defined. Here, many researchers showes that ligand–receptor mediated signaling promotes reactive oxygen species– dependent protein carbonylation...

The complex of Ce(III), [ Ce (PHENSC) (H 0) ] (C10 ) , was synthesized using the PHENSC, a hexadentate ligand,2,9-diformyl-1,lO- Phenanthroline bis (semicarbazone), and characterized by X-ray diffraction. The cerium atom has an unusual coordination number of ten involving six donor atoms of the planar ligand in the equatorial plane and four oxygen atoms from four axial water molecules. The...

Dracocephalum moldavica L. is an annual species of Lamiacea family whose essential oil is widely used in medicinal, food, cosmetic and health industries. Drought stress is a major factor limiting plants growth and yield. The main objective of this study was to evaluate the influence of irrigation regime on essential oil content and composition of D. moldavica L. The Irrigation regimes were 100%...

Journal: :Chimica techno acta 2022

In this work we obtained a polymer-metal complex by mixing aqueous solution of copper(II) acetate with PVA at certain ratio, pH the and temperature. The composition compound was determined potentiometric conductometric titration. possibility formation proved calculating thermodynamic characteristics. stability constant calculated on basis modified Bjerrum’s method. metal-polymer synthesized in ...

Journal: :Applied Water Science 2023

Abstract In the present study, 1-Nicotinoyl-4-phenyl thiosemicarbazide (H 2 NPT) multidentate nitrogen, oxygen and sulfur containing ligand is being synthesized in a simple single step reaction by condensing 1:1 molar ratio of ethanolic solutions both phenyl isothiocyanate nicotinoyl hydrazine. The prepared H NPT its complexes with Co 2+ , Ni Zn Cu were characterized pH-metric titrations, eleme...

Journal: :physical chemistry research 2015
maliheh sadat atri ali akbar saboury faizan ahmad

most of the biological phenomena are influenced by intermolecular recognition and interaction. thus, understanding the thermodynamics of biomacromolecule ligand interaction is a very interesting area in biochemistry and biotechnology. one of the most powerful techniques to obtain precise information about the energetics of (bio) molecules binding to other biological macromolecules is isothermal...

Journal: :Journal of Coordination Chemistry 2021

We report the first example of a charge-neutral linear two-coordinate copper(I) complex bearing sterically demanding acenaphthoimidazolylidene-based N-heterocyclic carbene (NHC) ligand. The identity and geometry are confirmed by single-crystal X-ray diffraction (XRD) analysis. is poorly emissive at room temperature, showing either ligand-centered (LC) emission around 340 nm when excited 300 or ...

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