Examining the thermolysis reactions of nanoscopic Mn12 single molecule magnets |
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| Institution: | 1. Department of Chemistry, University of Missouri, Columbia, MO 65211, USA;2. Structural Biology Core, University of Missouri, Columbia, MO 65211, USA;3. Research Service, Harry S. Truman Memorial Veterans'' Hospital, Columbia, MO 65201, USA;4. Department of Veterinary Medicine and Surgery, University of Missouri, Columbia, MO 65211, USA;5. School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, GR;6. Research Reactor Center, University of Missouri, Columbia, MO 65211, USA |
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| Abstract: | The thermal behavior of three Mn12 single molecule magnets Mn12O12(O2CC6H5)16(H2O)4]·CH2Cl2·C6H5CO2H (1), Mn12O12(O2CtBu)16(H2O)4] (2) and Mn12O12(O2CCHCl2)16(H2O)4] (3) is reported. Aromatic ligands allow the complex 1 to be stable up to 300 °C whereas alkyl groups decrease drastically the domain of thermal stability for the complexes 2 and 3. Moreover, the thermal decarboxylation of complexes 2 and 3 generates Mn6O2(O2CR)10L4] (L=H2O, HO2CR) complexes as characterized by single crystal X-ray diffraction when R=tBu. |
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