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Organic Ligands Made Porous: Magnetic and Catalytic Properties of Transition Metals Coordinated to the Surfaces of Mesoporous Organosilica
Author(s) -
Kuschel Andreas,
Luka Martin,
Wessig Martin,
Drescher Malte,
Fonin Mikhail,
Kiliani Gillian,
Polarz Sebastian
Publication year - 2010
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200902056
Subject(s) - materials science , mesoporous material , catalysis , nanoporous , transition metal , porosity , ligand (biochemistry) , adsorption , metal , chemical engineering , inorganic chemistry , nanotechnology , chemistry , organic chemistry , metallurgy , composite material , biochemistry , receptor , engineering
Inorganic solids with porosity on the mesoscale possess a high internal surface area and a well‐accessible pore system. Therefore, it is a relevant task to equip the surfaces of such materials with a maximum density of various organic functional groups. Among these functions it is the capability of coordinating to metal species as a ligand that is of extraordinary importance in many areas, for example, in catalysis. This paper describes how prominent ligands containing donor functions such as carboxylic, thio, chelating, or amine groups can be obtained in the form of nanoporous organosilica materials. The coordination of metal centers such as Co II , Mn II , V IV , or Pt IV is studied in detail. The magnetic properties of the corresponding materials and some applications in catalysis are reported. A quantitative determination of the surface density of donor atoms by distance measurements using EPR spectroscopy is shown.