نتایج جستجو برای: coordination compound of cadmium
تعداد نتایج: 21182101 فیلتر نتایج به سال:
Metal-organic coordination polymers are a class of organic–inorganic materials consists of metal ions linked together through multi-dentate organic ligands, to form a polymeric chain. These materials have received a great deal of attention in a wide range of different areassuch as catalysis, sensing, luminescence, separation and storage used . The new nano flowerPb(II) 1Dmetal-organic chain {[P...
Introduction Atomic Structures and Properties Electronic configurations Radii of atoms and ions Ionisation enthalpies Oxidation states Compound formation in maximum oxidation states Stability of compounds in aqueous solution Magnetic properties Coloured ion formation Alloy formation Interstitial compound formation Coordination Compounds Types of ligands Homleptic and heteroleptic complexes Coor...
Heavy metal pollution has become one of the most significant pollution problems encountered by our country in terms of environment protection. In addition to the significant effects of heavy metals on the human body and other organisms through water, food chain enrichment and other routes, heavy metals involved in daily necessities beyond the level limit could also affect people's lives, so the...
[Cd(NO)z(u rea)4J was synthesized by reaction of cadmium nitrate and urea under certain conditions. The dimensions of used crystal were O.47xO.40x0.58 mm. The molecular structure has been determined by SHELX-86 program. This complex crystalizes in monoclinic space group P2}/a with two molecules per uni. cell. Lattice parameters of this compound are: a~7.6060 A b~12.7740 A c~9.0370 A P~ll...
In vitro techniques may provide a suitable tool for effective propagation and conservation of plant species representing various ecological niches. The elaboration of such protocols is also prerequisite for selection of heavy-metal-tolerant plant material that could be afterwards used for restoration or remediation of polluted sites. In this study, culture protocol for Gypsophila fastigiata pro...
in the crystal structure of the title polymeric compound, [c42h38n6o33sr5.2(h2o)]n, five independent metal atoms (sr1-sr5) have different coordination environments. the sr1 and sr5 atoms are nine coordinated and feature distorted tricapped trigonal-prismatic and capped square-antiprismatic geometries, respectively. the rest srii atoms have eight coordination numbers. these units are connected v...
INTRODUCTION The need for sensitive aquatic toxicity tests is growing with the increasingly greater number of pollutants disposed of in waterways. We have initiated studies to determine whether the salamander, Notophthnlmus \iridescens. may be a useful animal model for bioassays on water toxicity. The salamanders used in this study are aquatic amphibians which have the ability to regenerate the...
a simple, rapid and low-cost scanner spectroscopy method for the glucose determination by utilizing glucose oxidase and cdte/tga quantum dots as chromoionophore has been described. the detection was based on the combination of the glucose enzymatic reaction and the quenching effect of h2o2 on the cdte quantum dots (qds) photoluminescence.in this study glucose was determined by utilizing glucose...
The title compound, [ZnBr(2)(C(12)H(28)N(2)Si)], is an example of a neutral coordination compound of a bidentate ligand to a metal centre with the Zn atom being coordinated by two Br and two N atoms, yielding a slightly distorted tetra-hedral coordination environment.
in recent years many researchers have been focused on interaction of small molecules with dna. dna is generally the primary intracellular of anticancer drugs, so the interaction between small molecules and dna can cause dna damage in cancer cells, blocking the division of cancer cells and resulting in cell death. the flavonoids are a large group of polyphenolic natural products that are widely ...
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