Long-Lived Radical Cation Salts Obtained by Interaction of Monocyclic Arenes with Niobium and Tantalum Pentahalides at Room Temperature: EPR and DFT Studies (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Long-Lived Radical Cation Salts Obtained by Interaction of Monocyclic Arenes with Niobium and Tantalum Pentahalides at Room Temperature: EPR and DFT Studies (Articolo in rivista) (literal)

Anno

• 2013-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1002/chem.201301552 (literal)

Alternative label

• Fabio Marchetti, Guido Pampaloni, Calogero Pinzino (2013)
  Long-Lived Radical Cation Salts Obtained by Interaction of Monocyclic Arenes with Niobium and Tantalum Pentahalides at Room Temperature: EPR and DFT Studies
  in Chemistry - A European Journal; Wiley-VCH Verlag, GmbH, Weinheim (Germania)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Fabio Marchetti, Guido Pampaloni, Calogero Pinzino (literal)

Pagina inizio

• 13962 (literal)

Pagina fine

• 13969 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 19 (literal)

Rivista

• Chemistry - A European Journal (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 41 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Dipartimento di Chimica e Chimica Industriale, Via Risorgimento 35, 56126 Pisa, Italy. ICCOM-CNR UOS, Area della Ricerca, Via Moruzzi 1, 56124 Pisa, Italy. (literal)

Titolo

• Long-Lived Radical Cation Salts Obtained by Interaction of Monocyclic Arenes with Niobium and Tantalum Pentahalides at Room Temperature: EPR and DFT Studies (literal)

Abstract

• The 1:3 reactions of the alkoxy arenes 1,4-(MeO)2C6H4 and 1,4-F2-2,5-(MeO)2C6H2 with TaF5 in chloroform at 40-50 °C resulted in formation in about 35 % yield of the long-lived radical cation salts [1,4-(MeO)2C6H4][Ta2F11] (2 a) and [1,4-F2-2,5-(MeO)2C6H2][Ta2F11] (2 b), respectively. The non-alkoxy-substituted [arene][M2X11] [M=Ta, X=F: arene=C6H5Me (2 c), 1,4-C6H4Me2 (2 d), C6H5F (2 e), C6H5NO2 (2 f); M=Nb, X=F: arene=C6H5Me (4 a), 1,4-C6H4Me2 (4 b), C6H5F (4 c), C6H5NO2 (4 d); M=Ta, X=Cl: arene=1,4-C6H4Me2 (5)] were obtained from the 3:1 reactions of MX5 with the appropriate arene in chloroform at temperatures in the range 40-90 °C. Compounds 2-5 were detected by EPR spectroscopy (in CHCl3) at room temperature, and their gas-phase structures were optimized by DFT calculations. Formation of the MIV species [MX4(NCMe)2] [M=Ta, X=F (3 a); M=Nb, X=F (3 b); M=Ta, X=Cl (3 c)] was ascertained by EPR spectroscopy on solutions obtained by treatment of the reaction mixtures with acetonitrile. Non-selective reactions occurred upon combination of 1,4-F2-2,5-(MeO)2C6H2 with AgNbF6 (in CH2Cl2) and 1,4-(MeO)2C6H4 with SbF5. (literal)

Editore

• Wiley-VCH Verlag, GmbH (Editore)

Prodotto di

• Istituto di chimica dei composti organo metallici (ICCOM) (Istituto)
• Metodi di risonanza magnetica (PM.P03.015.003) (Modulo)

Autore CNR

• CALOGERO PINZINO (Unità di personale interno)

Insieme di parole chiave

• Keywords of "Long-Lived Radical Cation Salts Obtained by Interaction of Monocyclic Arenes with Niobium and Tantalum Pentahalides at Room Temperature: EPR and DFT Studies" (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto di chimica dei composti organo metallici (ICCOM) (Istituto)
• Metodi di risonanza magnetica (PM.P03.015.003) (Modulo)

Autore CNR di

• CALOGERO PINZINO (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Chemistry - A European Journal (Rivista)

Editore di

• Wiley-VCH Verlag, GmbH (Editore)

Insieme di parole chiave di

• Keywords of "Long-Lived Radical Cation Salts Obtained by Interaction of Monocyclic Arenes with Niobium and Tantalum Pentahalides at Room Temperature: EPR and DFT Studies" (Insieme di parole chiave)