Search results for "Metallacrown"

showing 2 items of 12 documents

Complex formation of copper( ), nickel( ) and zinc( ) with ethylophosphonoacetohydroxamic acid: solution speciation, synthesis and structural charac…

2019

We present herein the thermodynamic and X-ray characterisation of a novel ethyl phosphonohydroxamic acid-based Cu( ) metallacrown, predominating in solution in a broad pH range.

Aqueous solutionChemistryLigandCoordination polymerIsothermal titration calorimetry02 engineering and technologyGeneral ChemistryCrystal structure010402 general chemistry021001 nanoscience & nanotechnology01 natural sciencesCatalysis0104 chemical sciencesCrystallographychemistry.chemical_compoundDeprotonationMaterials ChemistryChelation0210 nano-technologyMetallacrown
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Enforcement of a high-spin ground state for the first 3d heterometallic 12-metallacrown-4 complex.

2014

Cu(II)(DMF)2Cl2[12-MC(Fe(III)N(Shi))-4](DMF)4·2DMF was synthesized as the first heterometallic transition metal 12-MC-4 complex. The purposeful placement of specific metal ions in the different sites of the metallacrown attains the establishment of a high-spin ground state. Inducing the anticipated superior exchange interactions, the central Cu(II) guest ion averts the common mutual cancellation of the spins, as is observed in the corresponding homometallic compounds.

Inorganic ChemistryCrystallographySpinsTransition metalChemistryStereochemistryMetal ions in aqueous solutionSpin (physics)Ground stateMetallacrownIonDalton transactions (Cambridge, England : 2003)
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