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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

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New Trends in the Investigations of Macrocyclic Magnets

J. Mroziński¹, A. Tomkiewicz¹, M. Nahorska¹, A. Skorupa¹, B. Korybut-Daszkiewicz^2
1Faculty of Chemistry, University of Wrocław, Poland
²Institute of Organic Chemistry, Polish Academy of Sciences, Warszawa, Poland

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Thiolato-bridged Copper Complexes with N,N,S-tridentate Ligands

T. Kotera¹, A. Fujita¹, M. Mikuriya¹, M. Handa^2
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

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Structural Effects on Magnetism of Pyridyl Nitroxide Complexes of Ruthenium(II, III) Pivalate Dimers

M. Handa¹, Y. Sayama², M. Mikuriya², I. Hiromitsu¹, K. Kasuga^1
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

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Metal Complexes Immobilised In/On Porous Matrices - Possible Enzyme Mimics

I. Labádi¹, I. Szilágyi¹, N.I. Jakab², K. Hernádi³, I. Pálinkó^2
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

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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

Abstract

The thermodynamic stability of the mixed valence (one electron reduced) state between linked Ru₃ units was studied by means of electrochemistry for the series of the ligand bridged triruthenium cluster dimers, [Ru₃(μ₃-O)(μ-CH₃CO₂)₆(CO)(L)(μ-BL)Ru₃(μ₃-O)-(μ-CH₃CO₂)₆(CO)(L)] (BL = pyrazine: L = 4-dimethyl-aminopyridine (dmap) (1a), pyridine (py) (1b), 4-cyanopyridine (cpy) (1c), 1-azabicyclo[2.2.2]octane (1d); BL = 4,4'-bipyridine: L = dmap (2a), py (2b), cpy (2c); BL = 2,7-diazapyrene: L = dmap (3a); BL = 1,4-diazabicyclo-[2.2.2]octane: L = dmap (4a), py (4b), cpy (4c)). The mixed valence states undergoing rapid intramolecular electron transfers were observed by IR spectroelectrochemistry. By simulating dynamical effects on the observed ν(CO) absorption bandshapes, the rate constants, k_e, for electron transfer in the mixed valence states of 1a, 1b, 1c and 1d were estimated to be 9 x 1011 s^-1 (at room temperature (rt)), 5 x 1011 s^-1 (at rt), ca. 1 x 1011 s^-1 (at rt), and 1 x 1012 s^-1 (at -18°C), respectively. Possible applications of this approach to asymmetric mixed valence systems were discussed.

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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

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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

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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

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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. Fonseca^1
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

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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. Mroziński^3
1Institute of Molecular Physics PAS, Poznań, Poland
²Moscow Physical Technical Institute, Russia
³Faculty of Chemistry University of Wrocław, Poland

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