نتایج جستجو برای: criii determination
تعداد نتایج: 251167 فیلتر نتایج به سال:
For the helix-shaped vines growing in garden, as well for many bioactive molecules and other three-dimensional objects, chirality is an essential ubiquitous property. The synthetic control of atropoisomerism along C−N bonds particularly rare challenging, however. A simple CrIII–salen complex was nevertheless used a chiral enantiopure catalyst highly atroposelective Nenitzescu indole synthesis. ...
Compared to divalent ruthenium coordination complexes, which are widely exploited as parts of multi-component photonic devices, optically active trivalent chromium complexes are under-represented in multi-metallic supramolecular architectures performing energy conversion mainly because of the tricky preparation of stable heteroleptic CrIII building blocks. We herein propose some improvements wi...
The crystal structures of the new isomorphous compounds iron(III) oxyfluorotellurate(IV), FeTeO(3)F, gallium(III) oxyfluorotellurate(IV), GaTeO(3)F, and chromium(III) oxyfluorotellurate(IV), CrTeO(3)F, consist of zigzag chains of MO(4)F(2) distorted octahedra alternately sharing O-O and F-F edges and connected via TeO(3) trigonal pyramids. A full O/F anionic ordering is observed and the electro...
Heavy metals that contaminate soils and water usually exist in various oxidation states and form a number of compounds with different physical and chemical characteristics. These differences are often reflected in dramatic variation in toxicokinetic and biologic properties. Such variation in properties, critical in determining intrinsic toxicity, often causes a great deal of uncertainty in anal...
utrlizegauss newtonalgorithnfor determination of equilibrium constantin donor acceptor
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