Papers by Keyword: Molecular Magnetism

Abstract: In this contribution we report on the structural and magnetic changes along a catalytic cycle of a new dense, “quasi-squared” FePc submonolayer phase (R3) evaporated on Ag(110). X-ray magnetic circular dichroism (XMCD) experiments at the Fe L_2,3 edge were performed on four samples: the as-evaporated phase (R3), two differently oxygenated samples (OX1 and OX2) and the annealed phase (ANN). It is concluded that all characterized phases display planar anisotropy, and the values of m_s^eff/n_h are one order of magnitude larger than m_L/n_h. By oxidation, the isotropic moment increases from 7.2 x 10^-2 m_B/hole to 1.8 x 10^-1 m_B/hole, which is about a factor of 2 smaller than the increase achieved for the low-density phase.

Abstract: A unified theoretical and/or computational odd-electrons approach is suggested for molecules, surfaces and magnetic solids making possible their consideration on the same conceptual basis as well as on the same computational footing. The current paper presents the approach application to the chemistry of fullerenes, carboneous nanotubes, surface science of silicon crystal, as well as to the molecular magnetism of both solid polymerized fullerenes and molecular crystals composed of transitional metal complexes.

Abstract: A brief review of fascinating properties of fullerene is presented on the basis of the concept of effectively non-paired electrons. A versatile chemistry of fullerenes follows from the regioselectivity of their atoms and the uniqueness of donor-acceptor abilities. Computational synthesis of the fullerene derivatives is discussed. Applications of the basic concepts to medicinal applications of fullerenes as well as their magnetic properties and ability to form technomimetic species are considered.