Fayan Lai, Livia Getzner, Aurelian Rotaru, Gábor Molnár*, Saioa Cobo* and Azzedine Bousseksou*,
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Drastic Enhancement of Electrical Conductivity of Metal–Organic Frameworks Displaying Spin Crossover
Nanochannels of the metal–organic framework {Fe(pyrazine)[Ni(CN)4]} were loaded by pyrrole molecules from the vapor phase. Subsequent oxidation using an iodine solution resulted in the formation of conductive polypyrrole chains within the porous host. The obtained composite materials were characterized by powder X-ray diffraction; specific surface area analysis; Mössbauer, dielectric, and vibrational [Raman and FTIR] spectroscopies; magnetic susceptibility; and electrical conductivity measurements. Remarkably, the bulk electrical conductivity of the composites is enhanced by up to 6 orders of magnitude, and the spin-crossover property is retained to a large extent. These results constitute a breakthrough, opening novel perspectives for the development of highly conductive, spin-crossover molecular materials.
期刊介绍：
The journal Chemistry of Materials focuses on publishing original research at the intersection of materials science and chemistry. The studies published in the journal involve chemistry as a prominent component and explore topics such as the design, synthesis, characterization, processing, understanding, and application of functional or potentially functional materials. The journal covers various areas of interest, including inorganic and organic solid-state chemistry, nanomaterials, biomaterials, thin films and polymers, and composite/hybrid materials. The journal particularly seeks papers that highlight the creation or development of innovative materials with novel optical, electrical, magnetic, catalytic, or mechanical properties. It is essential that manuscripts on these topics have a primary focus on the chemistry of materials and represent a significant advancement compared to prior research. Before external reviews are sought, submitted manuscripts undergo a review process by a minimum of two editors to ensure their appropriateness for the journal and the presence of sufficient evidence of a significant advance that will be of broad interest to the materials chemistry community.
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