We have prepared the first niobium(V) compounds bearing fluorido and monodentate amido ligands (1a–c), which are tetranuclear cations, by the reaction between NbF5and Me3SiNMe2in the presence of a chloride (or bromide) source. The fluorido/carbamato derivative NbF2(O2CNMe2)3(2) was obtained in good yield from the reaction of NbF5and Me3SiNMe2in the presence of carbon dioxide at 1 atm pressure and ambient temperature. All the products were characterized by analytical and spectroscopic (IR, multinuclear NMR) methods, and by X-ray diffraction in the cases of 1b,c. DFT calculations were useful for elucidating the structures of the products and also for providing an insight into the reaction pathways.
Structural Characterization of a Fluorido-Amide of Niobium, and Facile CO2Incorporation Affording a Fluorido-Carbamate / Bresciani, Giulio; Bortoluzzi, Marco; Zacchini, Stefano; Marchetti, Fabio; Pampaloni, Guido. - In: EUROPEAN JOURNAL OF INORGANIC CHEMISTRY. - ISSN 1434-1948. - STAMPA. - 2018:8(2018), pp. 999-1006. [10.1002/ejic.201701309]
Structural Characterization of a Fluorido-Amide of Niobium, and Facile CO2Incorporation Affording a Fluorido-Carbamate
Zacchini, Stefano;
2018
Abstract
We have prepared the first niobium(V) compounds bearing fluorido and monodentate amido ligands (1a–c), which are tetranuclear cations, by the reaction between NbF5and Me3SiNMe2in the presence of a chloride (or bromide) source. The fluorido/carbamato derivative NbF2(O2CNMe2)3(2) was obtained in good yield from the reaction of NbF5and Me3SiNMe2in the presence of carbon dioxide at 1 atm pressure and ambient temperature. All the products were characterized by analytical and spectroscopic (IR, multinuclear NMR) methods, and by X-ray diffraction in the cases of 1b,c. DFT calculations were useful for elucidating the structures of the products and also for providing an insight into the reaction pathways.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
