نتایج جستجو برای: no coordination
تعداد نتایج: 3359286 فیلتر نتایج به سال:
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The substitution of ligands in octahedral metal complexes is the most extensively mechanistically studied inorganic reaction. It is of fundamental importance, and a number of important observations and results are found. Substitution in octahedral systems was initially studied for classical coordination complexes in aqueous solutions. More recently some important observations have been made reg...
SHG measurements on a highly transparent clay film ion-exchanged with chiral metal complexes revealed that the mono-molecular layer of the chiral complexes in an interlayer space acquired a non-centrosymmetric character.
This paper describes an exploratory study of configurations and coordination mechanisms for IT governance in European-based transnational companies. IT governance is traditionally defined as the formal allocation of IT decision-making authority. Rooted in organisation design theory, a research framework is proposed and comparative case study research is conducted in three large financial servic...
We investigate the effect of Hartree-Fock range-separation on the calculation of magnetic exchange couplings in a set of nine bimetallic transition-metal complexes containing 3d elements (V, Cr, Mn, and Cu). To this end, we have compared magnetic exchange couplings calculated as self-consistent energy differences using two global hybrid functionals, B3LYP (Becke 3-parameter exchange and Lee-Yan...
A new tris-2'',4'',6''-(2,2'-bipyridin-4-yl)-1'',3'',5''-triazine ligand and its family of ruthenium coordination complexes are described along with their characterization by electrochemical and photophysical methods as well as a rare single crystal X-ray analysis of a triruthenium polypyridine complex.
The versatile coordination chemistry of bis(pyrimidin-2-ylthio)methane (bptm) allows the synthesis of a series of different metal complexes with diverse structures. We describe here the synthesis and structural characterization of three kinds of compounds: four cyclic dimers, [Co(2)Cl(4)(bptm)(2)] (1), [Zn(2)I(4)(bptm)(2)] (2), [Cd(2)I(4)(bptm)(2)] (3), [Cu(2)(NO(3))(4)(bptm)(2)] (4); two acycl...
XMLSpaces is an extension to the Linda coordination language for Web-based applications. It supports XML documents as tuple fields and multiple matching routines implementing different relations amongst XML documents, including those given by XML query-languages. XMLSpaces is distributed with a clearly encapsulated open distribution strategy.
Post-synthetic derivatisation of a porous material produces a functionalized material that binds the metal complex V(O)acac2, in contrast to the unfunctionalized precursor, which is inactive for complex binding.
For future molecular spintronic applications the possibility to modify and tailor the magnetic properties of transition-metal complexes is very promising. One of such possibilities is given by the countless derivatization offered by carbon chemistry. They allow for altering chemical structures and, in doing so, to tune magnetic properties of molecular spin-carrying compounds. With emphasis on t...
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