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Tin Selenide Thin Films Prepared Through Combination of Chemical Precipitation and Vacuum Evaporation Technique
Z. Zainal 1, S. Nagalingam 1, A. Kassim 1, M.Z. Hussein 1, W.M.M. Yunus 2
1Department of Chemistry, University Putra Malaysia, Selangor, Malaysia
2Department of Physics, University Putra Malaysia, Selangor, Malaysia
New Trends in the Investigations of Macrocyclic Magnets
J. Mroziński1, A. Tomkiewicz1, M. Nahorska1, A. Skorupa1, B. Korybut-Daszkiewicz2
1Faculty of Chemistry, University of Wrocław, Poland
2Institute of Organic Chemistry, Polish Academy of Sciences, Warszawa, Poland
Thiolato-bridged Copper Complexes with N,N,S-tridentate Ligands
T. Kotera1, A. Fujita1, M. Mikuriya1, M. Handa2
1Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, Japan
2Department of Material Science, Interdisciplinary Faculty of Science and Engineering, Shimane University, Japan
Structural Effects on Magnetism of Pyridyl Nitroxide Complexes of Ruthenium(II, III) Pivalate Dimers
M. Handa1, Y. Sayama2, M. Mikuriya2, I. Hiromitsu1, K. Kasuga1
1Department of Material Science, Interdisciplinary Faculty of Science and Engineering, Shimane University, Japan
2Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, Japan
Metal Complexes Immobilised In/On Porous Matrices - Possible Enzyme Mimics
I. Labádi1, I. Szilágyi1, N.I. Jakab2, K. Hernádi3, I. Pálinkó2
1Department of Inorganic and Analytical Chemistry, University of Szeged, Hungary
2Department of Organic Chemistry, University of Szeged, Hungary
3Department of Applied and Environmental Chemistry, University of Szeged, Hungary
Intramolecular Electron Transfer on the Vibrational Timescale in Mixed Valence Ruthenium Clusters
N. Imai, T. Hamaguchi, T. Yamaguchi, T. Ito
Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Japan
Copper(I) Complexes as Potential CVD Precursors - Studies in the Liquid State and Gas Phase
I. Szymańska, R. Kucharek, E. Szłyk
Department of Chemistry, Nicolaus Copernicus University, Toruń, Poland
Spin Crossover in a Supramolecular FeII-FeIII System
H. Ohta1, Y. Sunatsuki1, Y. Ikuta2, N. Matsumoto2, S. Iijima3, H. Akashi4, T. Kambe5, M. Kojima1
1Department of Chemistry, Faculty of Science, Okayama University,Tsushima, Japan
2Department of Chemistry, Faculty of Science, Kumamoto University, Japan
3National Institute of Advanced Industrial Science and Technology, Japan
4Research Institute of Natural Sciences, Okayama University of Science, Ridai-cho, Japan
5Department of Physics, Faculty of Science, Okayama University, Tsushima, Japan
Spin-entropy Driven Charge Transfer Phase Transition in Iron Mixed-Valence System
N. Kojima, M. Itoi, Y. Ono, M. Okubo, M. Enmoto
Graduate School of Arts and Sciences, The University of Tokyo, Japan
Zeta Potential and Doping in Polyaniline Dispersions
D.W.O. de Medeiros1, D.S. dos Santos2, T.N.C. Dantas1, M.R. Pereira1, A. Giacometti3, J.L.C. Fonseca1
1Departamento de Química Universidade Federal do Rio Grande do Norte Lagoa Nova, Natal, Brazil
2Grupo de Polímeros ,,Prof. Bernhard Gross''Instituto de Física de Sao Carlos, Universidade de Sao Paulo, Brazil
3Faculdade de Ciencias e Tecnologia de Presidente Prudente
Universidade Estadual Paulista, Brazil
The Study of the Spin Transition Process in Na[Fe(Th-Sa)2] by Electron Paramagnetic Resonance
Yu.V. Yablokov1, V.V. Zelentsov2, M. Augustyniak-Jabłokow1, A. Krupska1, J. Mroziński3
1Institute of Molecular Physics PAS, Poznań, Poland
2Moscow Physical Technical Institute, Russia
3Faculty of Chemistry University of Wrocław, Poland
Abstract
The crossover phenomenon in Na[Fe(Th-Sa)2], a representative of a large class of the Fe(III) thiosemi-carbazonates, was examined by X-band EPR in temperatures 80 - 300°K and magnetisation of a polycrystalline sample was collected in the temperature range 1.8 - 300 K. The main results are as follows:
- The appearance of LS complexes is requires thermal population of the 2A term but the transition process is ruled by other factors.
- The LS complexes formed are not statistically distributed among the HS ones but tend to assemble in restricted spaces of the crystal lattice (domains) in which both short-range and long-range interactions of the complexes occur.
- The increase in the cooperative interactions between the LS complexes and the enlargement of domains occur gradually with two jump changes. Each of the jumps has different character; the first is related to a redistribution of the complexes in domains and the other to a rapid increase in the LS phase volume.
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