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New Nanostructured Materials: Synthesis of Dodecanuclear Ni II Complexes and Surface Deposition Studies
Author(s) -
PonsBalagué Alba,
Piligkos Stergios,
Teat Simon J.,
Costa Jose Sánchez,
Shiddiq Muhandis,
Hill Stephen,
Castro German R.,
FerrerEscorihuela Pilar,
Sañudo E. Carolina
Publication year - 2013
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201204081
Subject(s) - squid , crystallite , cubane , electron paramagnetic resonance , crystallography , nickel , x ray crystallography , deposition (geology) , materials science , chemistry , diffraction , crystal structure , nuclear magnetic resonance , physics , ecology , paleontology , sediment , optics , biology , metallurgy
Microwave‐assisted synthesis has been used to obtain the family of dodecanuclear Ni II complexes [Ni 12 (NO 3 )(MeO) 12 (MeC 6 H 4 CO 2 ) 9 (MeOH) 10 (H 2 O) 2 ][ClO 4 ] 2 ( 1 ), [Ni 12 (NO 3 )(MeO) 12 (BrC 6 H 4 CO 2 ) 9 (MeOH) 10 (H 2 O) 2 ][ClO 4 ] 2 ( 2 ), [Ni 12 (CO 3 )(MeO) 12 (MeC 6 H 4 CO 2 ) 9 (MeOH) 10 (H 2 O) 2 ] 2 [SO 4 ] ( 3 ) and [Ni 12 (NO 3 )(MeO) 12 (MeC 6 H 4 CO 2 ) 9 (MeOH) 8 (H 2 O) 7 ][NO 3 ] 2 ( 4 ). They contain three {Ni 4 O 4 } cubane units which template around a central μ 6 anion, either NO 3 − or CO 3 2− . Their magnetic properties have been studied by superconducting quantum interference device (SQUID) magnetometry and high‐field EPR measurements. The nanostructuration of the Ni 12 species on mica surfaces is studied by AFM and grazing‐incidence X‐ray diffraction, which reveal the formation of polycrystalline thin layers.