Reactivity of the dinuclear fulvalene cyclopentadienyl zirconium cationic species [{Zr(η5-C5H5)}2(μ-CH2)(μ-Cl)(μ-η5-C5H4-η5-C5H4)]+ with isocyanides and carbon monoxide: insertion reactions, spectroscopic characterization and synthetic aspects
Identifiers
Permanent link (URI): http://hdl.handle.net/10017/4201DOI: 10.1016/S0022-328X(01)01106-8
ISSN: 0022-328X
Publisher
Elsevier
Date
2001Funders
Financial support by DGICYT (Project PB97-0776)
is gratefully acknowledged. E.R. acknowledges MECFPI
for the award of Fellowship
Bibliographic citation
Journal of Organometallic Chemistry, 2001, v. 634, n. 2, p. 177-184
Keywords
Zirconium
Dinuclear fulvalene compounds
Cations derivatives
Isocyanides insertion
Carbon monoxide insertion
Project
PB97-0776 (Ministerio de Ciencia y Tecnología)
Document type
info:eu-repo/semantics/article
Version
info:eu-repo/semantics/publishedVersion
Publisher's version
http://dx.doi.org/10.1016/S0022-328X(01)01106-8Rights
(c) Elsevier, 2001
Access rights
info:eu-repo/semantics/openAccess
Abstract
The dinuclear cationic zirconium compound [{Zr(η5-C5H5)}2(μ-CH2)(μ-Cl)(μ-η5-C5H4-η5-C5H4)][BMe(C6F5)3] 1 reacts in dichloromethane at −78 °C with three equivalents of RNC (R=tBu, 2,6-Me2C6H3) via insertion into the Zr-μ-methylene bond to give the new zirconium cationic species [{Zr(η5-C5H5)}2(Cl)(CNtBu){μ-[η2-CN(tBu)-CH2-η2-CN(tBu)}(μ-η5-C5H4-η5-C5H4)][BMe(C6F5)3] 2 and [{Zr(η5-C5H5)}2(Cl){CN(2,6-Me2C6H3)}[μ-η2-{CN(2,6-Me2C6H3)}-CH2-η2-{CN(2,6-Me2C6H3)}](μ-η5-C5H4-η5-C5H4)][BMe(C6F5)3] 3, whereas reaction with CO affords the ketene compound [{Zr(η5-C5H5)}2(μ-Cl){μ-OC(CH2)}(μ-η5-C5H4-η5-C5H4)][BMe(C6F5)3] 4. The new complexes reported herein were characterized by elemental analysis and IR and NMR spectroscopy.
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