Molecular Magnets Recent Highlights

ISBN-13: 9783211838914 / Angielski / Twarda / 2003 / 216 str.

W. Ed Linert; Wolfgang Linert; Michel Verdaguer

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high as 35 K. The rush to room temperature was won by Miller and Epstein again who showed that V(TCNEh is a disordered ferrimagnet above room temperature. Verdaguer opened the saga of Prussian blue derivatives, finally reporting a ferri magnet comprising chromium(III), vanadium(II), and vanadium(III) which orders above room temperature. Nowadays the attempts to prepare molecular magnets which can be used at room temperature are continuing but at the same time there are many attempts to synthe sise molecular magnets which have properties which are difficult to be met in inor ganic magnets. Day reported an organic superconductor coexisting in the same lattice of a molecular paramagnet, while more recently Coronado reported a mole cular ferromagnet hosting in the lattice an organic conductor. This is an example of ferromagnetic conductor in which the active electrons, namely conducting and mag netic, are separated. Many efforts are currently done to investigate chiral magnets and to use light to influence the magnetic properties of the materials.

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Invited Reviews: Clément, R., Decurtins, S., Gruselle, M., Train, C.: Polyfunctional Two- (2D) and Three- (3D) Dimensional Oxalate Bridged Bimetallic Magnets Mihailovic, D.: Ferromagnetism in Metallocene-Doped Fullerenes Marvaud, V., Herrera, J. M., Barilero, T., Tuyeras, F., Garde, R., Scuiller, A., Decroix, C., Cantuel M., Desplanches C.: High Spin and Anisotropic Molecules Based on Polycyanometalate Chemistry Létard, J.-F., Chastanet, G., Nguyen, O., Marcén, S., Marchivie, M., Guionneau, P., Chasseau, D., Gütlich, P.: Spin Crossover Properties of the [Fe(PM-BiA)2(NCS)2] Complex – Phases I and II van Koningsbruggen, P. J., Grunert, M., Weinberger, P.: Spin Transition of 1D, 2D and 3D Iron (II) Complex Polymers – The Tug-of-War between Elastic Interaction and a Shock-Absorber Effect Boca, R., Linert, W.: Is There a Need for New Models of the Spin Crossover? Leuenberger, M. N., Meier, F., Loss, D.: Quantum Spin Dynamics in Molecular Magnets Ressouche, E., Schweizer, J.: Ab Initio Calculations Versus Polarized Neutron Diffraction for the Spin Density of Free Radicals Contributions: Stassen, A. F., Ferrero, E. M., Giménez-Saiz, C., Coronado, E., Haasnoot, J. G., Reedijk, J.: A New Layered Compound Containing [PMo12O40]3- and Both 5- and 6-Coordinated Homoleptic (1-(2-Chloroethyl)tetrazole)Copper(II) Cations Gerbier, P., Ruiz-Molina, D., Domingo, N., Amabilino, D. B., Vidal-Gancedo, J., Tejada, J., Hendrickson, D. N., Veciana, J.: Synthesis and Characterization of a [Mn12O12(O2CR)16(H2O)4] Complex Bearing Paramagnetic Carboxylate Ligands. Use of a Modified Acid Replacements Synthesis Approach Champion, G., Arrio, M.-A., Sainctavit, P., Zacchigna, M., Zangrando, M., Finazzi, M., Parmigiani, F., Villain, F., Mathonière, C., Cartier dit Moulin, C.: Size Effect on Local Magnetic Moments in Ferrimagnetic Molecular Complexes: An XMCD Investigation Gaspar, A. B., Muñoz, M. C., Moliner, N., Ksenofontov, V., Levchenko, G., Gütlich P.,Real, A. J.: Polymorphism and Pressure Driven Thermal Spin Crossover Phenomenon in [Fe(abpt)2(NCX)2] (X = S, and Se): Synthesis, Structure and Magnetic Properties Paulsen, H., Duelund, L., Zimmermann, A., Averseng, F., Gerdan, M., Winkler, H., Toftlund, H., Trautwein, A. X.: Substituent Effects on the Spin-Transition Temperature in Complexes with Tris(pyrazolyl) Ligands Rodríguez-Fortea, A., Ruiz, E., Alemany, P., Alvarez, S.: Magneto-Structural Correlations in Trinuclear Cu(II) Complexes: A Density Functional Study Massobrio, C., Ruiz, E.: Localized Orbitals vs. Pseudopotential-Plane Waves Basis Sets: Performances and Accuracy for Molecular Magnetic Systems