Models of surface-confined metallocene derivatives |
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| Institution: | 1. School of Chemistry, The University of Sydney, N.S.W., 2006 Australia; tel. (+ 61-2)693743, fax. (+ 61-2)6923329;2. Department of Chemistry, The University of Liverpool, P.O. Box 147, Liverpool L69 3BX UK;1. Canadian Centre for Research in Advanced Fluorine Technologies, University of Lethbridge, Canada;2. Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Drive W, Lethbridge, AB, T1K 3M4, Canada;1. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, Moscow, 119991, Russian Federation;2. Pirogov Russian National Research Medical University, 1 Ostrovityanov Street, Moscow, 117997, Russian Federation;3. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Pr., Moscow, 119991, Russian Federation;4. Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70 Profsoyuznaya Street, Moscow, 117393, Russian Federation;1. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova str., 28, Moscow, 119991, Russia;2. Peoples'' Friendship University of Russia, Miklukho-Maklay Str., 6, 117198, Moscow, Russia;3. Moscow South-Eastern school named after V.I. Chuikov, Zelenodolskaya str., 32/6, 109457, Moscow, Russia;4. National Research Center “Kurchatov Institute”, Akademika Kurchatova pl., 1, Moscow, Russia;5. N. N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, ul. Kosygina, dom 4, Moscow, 119991, Russia;6. Plekhanov Russian University of Economics, Stremyannyi pereulok, dom 36, Moscow, 117997, Russia;1. Department of Physics, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran;2. Young Researchers and Elite Club, Kermanshah Branch, Islamic Azad University, P.O. Box 6718997551, Kermanshah, Iran;3. New Technologies – Research Centre, University of West Bohemia, Univerzitni 8, 306 14 Pilsen, Czech Republic;4. School of Material Engineering, University Malaysia Perlis, 01007 Kangar, Perlis, Malaysia |
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| Abstract: | The silsesquioxane ((C6H11)7Si7O9)(OH)3] (LH3) was reacted with M(C5H5)2Cl2] (M = Ti, Zr, Hf) and with Ti(C5H5)Cl3]. The reaction with Ti(C5H5)Cl3] produced Ti(C5H5)L], whereas the reaction with Ti(C5H5)2Cl2] produced a mixture of Ti(C5H5)L]n. (n = 1, 2) as determined by NMR spectroscopy. Only Ti(C5H5)L] could be isolated from the mixture. The reaction with M(C5H5)2Cl2] (M = Zr, Hf) produced oligomeric species which contained no cyclopentadienyl ligands and which were formulated as containing trimeric M3L4Cl]− anions on the basis of analytical and spectroscopic data. |
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