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- Angus-Dunne, Sarah J.Mälardalens högskola (author)
Metallocene and organo-main group trifluoromethanesulfonates
- Article/chapterEnglish2006
Publisher, publication year, extent ...
- Springer Science and Business Media LLC,2006
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:mdh-31905
- https://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-31905URI
- https://doi.org/10.1007/s11243-005-6410-3DOI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- The substituted metallocene compounds Cp2M(OSO 2CF3)2 (Cp=η5-C 5H5; M = Ti, Zr, Hf, Nb, Mo), CpTi(OSO2CF 3)3 • 0.75(1,2-dimethoxyethane), and the organo-main group compounds (C6H5)3M′(OSO 2CF3) (M′=Si, Ge), (C6H5) 2Sn(OSO2CF3)2 and (C 6H5)3Sb(OSO2CF3) 2, were synthesized from the corresponding chloride or bromide compounds and silver trifluoromethanesulfonate (triflate) and characterized spectroscopically, including a detailed analysis of their IR spectra. Triflate coordination is typically monodentate, but CpTi(OSO2CF 3)3 • 0.75(1,2-dimethoxyethane) and the organo-germanium triflate show evidence of bidentate CF3SO 3 - ligands and are likely to have polymeric structures. Conductance measurements in nitromethane, acetone and acetonitrile have demonstrated the ease of triflate substitution, with a limited kinetic study of acetone solvation of the Ti and Hf compounds supporting an associative pathway. Three new catalysts for the polymerization of tetrahydrofuran, Cp 2HfCl2/Ag(OSO2CF3), CpTiCl 3/Ag(OSO2CF3) and (C6H 5)2SiCl2/Ag(OSO2CF3), are also reported.
Subject headings and genre
- Acetone
- Catalysts
- Esters
- Polymerization
- Reaction kinetics
- Synthesis (chemical)
- Metallocene compounds
- Solvation
- Tetrahydrofuran
- Olefins
Added entries (persons, corporate bodies, meetings, titles ...)
- Lee Chin, L. E. P.University of Newcastle, Australia (author)
- Burns, R. C.University of Newcastle, Australia (author)
- Lawrance, G. A.University of Newcastle, Australia (author)
- Mälardalens högskolaUniversity of Newcastle, Australia (creator_code:org_t)
Related titles
- In:Transition metal chemistry (Weinheim): Springer Science and Business Media LLC31:2, s. 268-2750340-42851572-901X
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