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نمایش تعداد 1-10 از 202
Molecular design and crystal engineering of a novel series of inorganic-organic hybrid architectures based Keggin-type polyoxometalates
The targeted synthesis of inorganic–organic hybrid supramolecular materials through crystal engineering is a principal challenge of modern chemistry research. Polyoxometalates (POMs), as metal–oxygen cluster species, are ...
Purposeful molecular design of inorganic-organic hybrid architectures and coordination compounds based on polyoxometalates and N-heterocycle ligands in viewpoint of crystal engineering approach
Crystal engineering is a synthetic endeavour that begins with the synthesis or identification of suitable molecular building blocks which can be combined in a directed manner by self-assembly methods to yield interesting ...
Developing some POMs-templated MOFs: Crystal structure, magnetic and gas adsorption properties
In the past decades, great efforts have been devoted to the rational design and
synthesis of inorganic-organic hybrid architectures and metal organic frameworks
(MOFs). A common feature of such design ...
Surface‐grafted lanthanoid complexes of the Keggin-type heteropolyoxometallates: a hydrogen evolution reactivity, structural and computational investigation
The hydrothermal syntheses of some inorganic–organic hybrids based on
polyoxometallates, is surveyed. All compounds have been characterized using some
physico–chemical approaches and single–crystal X–ray diffraction ...
Structural and particle size evolution of sol–gel-derived nanocrystalline hydroxyapatite
An easy alkoxide-based sol–gel method based on Ca(NO3)2·4H2O and triethyl phosphate [PO(OC2H5)3;
TEP] as Ca and P precursors have been developed to synthesize nano-hydroxyapatite (HA). The structural
evolution ...
سنتز و پراش پرتو X تک بلور دورگه ی معدنی-آلی بر پایه ی پرازودیمیم-دی پیکولینیک اسید و نانو ساختارهای سیلیکوتنگستات
دورگه¬های معدنی-آلی بر¬پایه¬ی واحدهای ساختاری پلی¬اکسومتالات کگین، سیلیکوتنگستات ([SiW12O40]4-)، همبافت پرازودیمیم- دی¬پیکولینات (pydc) (2،6-پیریدین¬دی¬کربوکسیلیک اسید) در شرایط گرمابی با فرمول (1) [Pr2(pydc)2(H2O)8] ...
Ce–promoted Na2WO4/TiO2 catalysts for the oxidative coupling of methane
The catalytic oxidative coupling of methane (OCM) on Ce–promoted Na2WO4/TiO2 catalysts was performed at atmospheric pressure in fixed-bed micro-quartz-tube reactor. The highest methane conversion (50.1%) and C2 yield (27.6%) ...
Investigation of the coordination behavior of pyridine-2,6-dicarboxylic acid N-oxide and 2,9-dimethyl-1,10-phenanthroline toward copper ion
Nowadays, inorganic chemistry is an interesting field for many researches, by designing and constucting new compounds with favorable properties, wich have fascinating applications ranging from nanotechnology, catalysis, ...
Synthesis and Spectral Characterization of Copper(II), Cobalt(II), and Iron(ш) Complexes Containing Pre-organized Ligand of 1,10-Phenanthroline-2,9-Dicarboxylic Acid
1,10-phenanthroline-2,9-dicarboxylate (hereafter PDA) has a synergistic combination of donor groups, two N atoms and two O atoms, in which the charged carboxylate groups fulfill the function of lowering the charge on the ...
Hydrothermal syntheses of two inorganic–organic hybrids based on highly preorganized 2,9-bis(hydroxymethyl)-1,10-phenanthroline ligand and Keggin type polyoxometalates
Polyoxometalates (POMs) as an important inorganic ligands are polynuclear metal–oxygen clusters with excellent electronic versatility and structural diversity. Keggin type POMs are one of the most fascinating groups because ...