New Nanostructured Materials: Synthesis of Dodecanuclear NiII Complexes and Surface Deposition Studies |
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| Authors: | Alba Pons‐Balagué Dr Stergios Piligkos Dr Simon J Teat Dr Jose Sánchez Costa Muhandis Shiddiq Dr Stephen Hill Dr German R Castro Dr Pilar Ferrer‐Escorihuela Dr E Carolina Sañudo |
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| Institution: | 1. Department of Inorganic Chemistry, Universitat de Barcelona, Av. Diagonal 645, 08028 Barcelona (Spain);2. Department of Chemistry, University of Copenhagen (KIKU), Copenhagen (Denmark);3. Advanced Light Source, Berkeley CA (USA);4. High Magnetic Field National Laboratory, Tallahassee, FL (USA);5. SpLine Spanish CRG Beamline, European Synchrotron Radiation Facility, 38043 Grenoble (France) |
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| Abstract: | Microwave‐assisted synthesis has been used to obtain the family of dodecanuclear NiII complexes Ni12(NO3)(MeO)12(MeC6H4CO2)9(MeOH)10(H2O)2]ClO4]2 ( 1 ), Ni12(NO3)(MeO)12(BrC6H4CO2)9(MeOH)10(H2O)2]ClO4]2 ( 2 ), Ni12(CO3)(MeO)12(MeC6H4CO2)9(MeOH)10(H2O)2]2SO4] ( 3 ) and Ni12(NO3)(MeO)12(MeC6H4CO2)9(MeOH)8(H2O)7]NO3]2 ( 4 ). They contain three {Ni4O4} cubane units which template around a central μ6 anion, either NO3? or CO32?. Their magnetic properties have been studied by superconducting quantum interference device (SQUID) magnetometry and high‐field EPR measurements. The nanostructuration of the Ni12 species on mica surfaces is studied by AFM and grazing‐incidence X‐ray diffraction, which reveal the formation of polycrystalline thin layers. |
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| Keywords: | magnetic properties nanostructures nickel polynuclear complexes thin films |
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