Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/5112
Título: Molybdenum – and tungsten(II) monometallic 3-(2-pyridyl)pyrazole and bimetallic 3-(2-pyridyl)pyrazolate complexes
Autor: Arroyo, Marta
Miguel, Daniel
Villafane, Fernando
Alegria, Elisabete Clara Bastos do Amaral
Pombeiro, Armando J. L.
Palavras-chave: Pyrazole-Derived Ligands
Metal-metal Interactions
Spectroscopic Properties
Crystal-Structure
Coordination Chemistry
Dynamic-Behavior
Hydrogen-Bond
Solid-State
Tetranuclear
Transition
Data: 2012
Editora: Royal Soc Chemistry
Citação: ARROYO, M.; [et al] – Molybdenum – and tungsten(II) monometallic 3-(2-pyridyl)pyrazole and bimetallic 3-(2-pyridyl)pyrazolate complexes. Dalton Transactions. ISSN: 1477-9226. Vol. 41, nr. 23 (2012), pp. 7017-7025
Resumo: Molybdenum and tungsten complexes containing the pypzH (3-(2-pyridyl)pyrazole) ligand as a chelating bidentate are prepared: [Mo(CO)(4)(pypzH)], cis-[MoBr(eta(3)-allyl)(CO)(2)(pypzH)], cis-[MoCl(eta(3)-methallyl)(CO)(2)(pypzH)], [MI2(CO)(3)(pypzH)] (M = Mo, W) from [Mo(CO)(4)(NBD)] or the adequate bis(acetonitrile) complexes. The deprotonation of the molybdenum allyl or methallyl complexes affords the bimetallic complexes [cis-{Mo(eta(3)-allyl)(CO)(2)(mu(2)-pypz)}](2) or [cis-{Mo(eta(3)-methallyl)(CO)(2)(mu(2)-pypz)}](2) (mu(2)-pypz = mu(2)-3-(2-pyridyl-kappa N-1) pyrazolate-2 kappa N-1). The allyl complex was subjected to an electrochemical study, which shows a marked connection between both metallic centres through the bridging pyridylpyrazolates.
Peer review: yes
URI: http://hdl.handle.net/10400.21/5112
DOI: 10.1039/c2dt12388f
ISSN: 1477-9226
Aparece nas colecções:ISEL - Eng. Quim. Biol. - Artigos



FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Degois 

Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.