0000000001302640
AUTHOR
Peter Happ
showing 15 related works from this author
12-MC-4 metallacrowns as versatile tools for SMM research
2015
Abstract The outstanding chemical and structural features of 12-MC-4 metallacrowns allow for versatile applications in magneto-chemical research. Herein, we present three novel approaches. The heterometallic, or magnetic director approach, provides a targeted way to attain unusual high-spin ground states in 12-MC-4 complexes. Further, the first cobalt metallacrowns of salicylhydroxamic acid have been established. They comprise a diamagnetic scaffold which facilitates an engineering of the magnetism of the central guest ion and thus three novel SMMs based on single Co(II) ions have been established. Finally, click chemistry has been utilized to realize a linkage of an azide-functionalized mo…
Analyzing the enforcement of a high-spin ground state for a metallacrown single-molecule magnet
2016
We have studied element-selective magnetic properties of the hetero- and homometallic metallacrowns $\mathrm{Cu}{(\mathrm{II})}_{2}[12\ensuremath{-}{\mathrm{MC}}_{YN(Shi)}\ensuremath{-}4]$ ($Y=\text{Cu}$, Fe, in short ${\mathrm{CuCu}}_{4}$ and ${\mathrm{CuFe}}_{4}$). These metallacrowns comprise four Fe or Cu ions surrounding a central Cu ion. Using x-ray magnetic circular dichroism we have probed local symmetries, electronic configuration, orbital and spin magnetic moments of the magnetic ions. The ratio between the Cu and Fe moment of $\ensuremath{-}0.11$ is independent of temperature in the range of 15 K to 90 K. The Cu moment shows antiparallel to the Fe moment. For ${\mathrm{CuCu}}_{4}…
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.
CCDC 2104301: Experimental Crystal Structure Determination
2021
Related Article: Peter Happ, Christian Plenk, Eva Rentschler|2015|Coord.Chem.Rev.|289-290|238|doi:10.1016/j.ccr.2014.11.012
CCDC 984042: Experimental Crystal Structure Determination
2014
Related Article: Peter Happ, Eva Rentschler|2014|Dalton Trans.|43|15308|doi:10.1039/C4DT02275K
CCDC 2104300: Experimental Crystal Structure Determination
2021
Related Article: Peter Happ, Christian Plenk, Eva Rentschler|2015|Coord.Chem.Rev.|289-290|238|doi:10.1016/j.ccr.2014.11.012
CCDC 2104296: Experimental Crystal Structure Determination
2021
Related Article: Peter Happ, Christian Plenk, Eva Rentschler|2015|Coord.Chem.Rev.|289-290|238|doi:10.1016/j.ccr.2014.11.012
CCDC 2104302: Experimental Crystal Structure Determination
2021
Related Article: Peter Happ, Christian Plenk, Eva Rentschler|2015|Coord.Chem.Rev.|289-290|238|doi:10.1016/j.ccr.2014.11.012
CCDC 2104297: Experimental Crystal Structure Determination
2021
Related Article: Peter Happ, Christian Plenk, Eva Rentschler|2015|Coord.Chem.Rev.|289-290|238|doi:10.1016/j.ccr.2014.11.012
CCDC 2104303: Experimental Crystal Structure Determination
2021
Related Article: Peter Happ, Christian Plenk, Eva Rentschler|2015|Coord.Chem.Rev.|289-290|238|doi:10.1016/j.ccr.2014.11.012
CCDC 984043: Experimental Crystal Structure Determination
2014
Related Article: Peter Happ, Eva Rentschler|2014|Dalton Trans.|43|15308|doi:10.1039/C4DT02275K
CCDC 2104295: Experimental Crystal Structure Determination
2021
Related Article: Peter Happ, Christian Plenk, Eva Rentschler|2015|Coord.Chem.Rev.|289-290|238|doi:10.1016/j.ccr.2014.11.012
CCDC 2104298: Experimental Crystal Structure Determination
2021
Related Article: Peter Happ, Christian Plenk, Eva Rentschler|2015|Coord.Chem.Rev.|289-290|238|doi:10.1016/j.ccr.2014.11.012
CCDC 2104299: Experimental Crystal Structure Determination
2021
Related Article: Peter Happ, Christian Plenk, Eva Rentschler|2015|Coord.Chem.Rev.|289-290|238|doi:10.1016/j.ccr.2014.11.012
CCDC 2104304: Experimental Crystal Structure Determination
2021
Related Article: Peter Happ, Christian Plenk, Eva Rentschler|2015|Coord.Chem.Rev.|289-290|238|doi:10.1016/j.ccr.2014.11.012