Molecular multifunctionality preservation upon surface deposition for a chiral single-molecule magnet
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Molecular multifunctionality preservation upon surface deposition for a chiral single-molecule magnet. / Mitcov, Dmitri; Pedersen, Anders H.; Ceccato, Marcel; Gelardi, Rikke M.; Hassenkam, Tue; Konstantatos, Andreas; Reinholdt, Anders; Sørensen, Mikkel A.; Thulstrup, Peter W.; Vinum, Morten G.; Wilhelm, Fabrice; Rogalev, Andrei; Wernsdorfer, Wolfgang; Brechin, Euan K.; Piligkos, Stergios.
I: Chemical Science, Bind 10, Nr. 10, 01.01.2019, s. 3065-3073.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Molecular multifunctionality preservation upon surface deposition for a chiral single-molecule magnet
AU - Mitcov, Dmitri
AU - Pedersen, Anders H.
AU - Ceccato, Marcel
AU - Gelardi, Rikke M.
AU - Hassenkam, Tue
AU - Konstantatos, Andreas
AU - Reinholdt, Anders
AU - Sørensen, Mikkel A.
AU - Thulstrup, Peter W.
AU - Vinum, Morten G.
AU - Wilhelm, Fabrice
AU - Rogalev, Andrei
AU - Wernsdorfer, Wolfgang
AU - Brechin, Euan K.
AU - Piligkos, Stergios
PY - 2019/1/1
Y1 - 2019/1/1
N2 - The synthesis and characterization of a chiral, enneanuclear Mn(iii)-based, Single-Molecule Magnet, [Mn9O4(Me-sao)6(L)3(MeO)3(MeOH)3]Cl (1; Me-saoH2 = methylsalicylaldoxime, HL = lipoic acid) is reported. Compound 1 crystallizes in the orthorhombic P212121 space group and consists of a metallic skeleton describing a defect super-tetrahedron missing one vertex. The chirality of the [MnIII9] core originates from the directional bridging of the Me-sao2- ligands via the -N-O- oximate moieties, which define a clockwise (1ΔΔ) or counter-clockwise (1ΛΛ) rotation in both the upper [MnIII3] and lower [MnIII6] subunits. Structural integrity and retention of chirality upon dissolution and upon deposition on (a) gold nanoparticles, 1@AuNPs, (b) transparent Au(111) surfaces, 1ΛΛ@t-Au(111); 1ΔΔ@t-Au(111), and (c) epitaxial Au(111) on mica surfaces, 1@e-Au(111), was confirmed by CD and IR spectroscopies, mass spectrometry, TEM, XPS, XAS, and AFM. Magnetic susceptibility and magnetization measurements demonstrate the simultaneous retention of SMM behaviour and optical activity, from the solid state, via dissolution, to the surface deposited species.
AB - The synthesis and characterization of a chiral, enneanuclear Mn(iii)-based, Single-Molecule Magnet, [Mn9O4(Me-sao)6(L)3(MeO)3(MeOH)3]Cl (1; Me-saoH2 = methylsalicylaldoxime, HL = lipoic acid) is reported. Compound 1 crystallizes in the orthorhombic P212121 space group and consists of a metallic skeleton describing a defect super-tetrahedron missing one vertex. The chirality of the [MnIII9] core originates from the directional bridging of the Me-sao2- ligands via the -N-O- oximate moieties, which define a clockwise (1ΔΔ) or counter-clockwise (1ΛΛ) rotation in both the upper [MnIII3] and lower [MnIII6] subunits. Structural integrity and retention of chirality upon dissolution and upon deposition on (a) gold nanoparticles, 1@AuNPs, (b) transparent Au(111) surfaces, 1ΛΛ@t-Au(111); 1ΔΔ@t-Au(111), and (c) epitaxial Au(111) on mica surfaces, 1@e-Au(111), was confirmed by CD and IR spectroscopies, mass spectrometry, TEM, XPS, XAS, and AFM. Magnetic susceptibility and magnetization measurements demonstrate the simultaneous retention of SMM behaviour and optical activity, from the solid state, via dissolution, to the surface deposited species.
U2 - 10.1039/c8sc04917c
DO - 10.1039/c8sc04917c
M3 - Journal article
C2 - 30996888
AN - SCOPUS:85062631871
VL - 10
SP - 3065
EP - 3073
JO - Chemical Science
JF - Chemical Science
SN - 2041-6520
IS - 10
ER -
ID: 230302788