Issue 7, 2018

Modifying bis(triflimide) ionic liquids by dissolving early transition metal carbamates

Abstract

The authors report the first modification of ionic liquids with metal carbamates. A selection of homoleptic N,N-dialkylcarbamates of group 4 and 5 metals, M(O2CNR2)n, were dissolved in bis(trifluoromethylsulfonyl)imide-based ionic liquids, i.e. [bmim][Tf2N] and [P(oct)4][Tf2N], at 293 K. The resulting solutions were characterized by means of IR, UV and NMR spectroscopy, and the data were compared to those of the respective metal compounds. Notably, the dissolution process did not proceed with the release of any of the original carbamato ligands, thus preserving the intact coordination frame around the metal centre. The solvation process of Ti(O2CNiPr2)4, as a model species, in [bmim][Tf2N] was rationalized by DFT calculations. As a comparative study, solutions of NbF5 and MCl5 (M = Nb, Ta) in [bmim][Tf2N] were also investigated, revealing the possible occurrence of solvent anion coordination to the metal centres.

Graphical abstract: Modifying bis(triflimide) ionic liquids by dissolving early transition metal carbamates

Supplementary files

Article information

Article type
Paper
Submitted
27 Oct 2017
Accepted
16 Jan 2018
First published
18 Jan 2018

Phys. Chem. Chem. Phys., 2018,20, 5057-5066

Modifying bis(triflimide) ionic liquids by dissolving early transition metal carbamates

L. Biancalana, G. Bresciani, C. Chiappe, F. Marchetti, G. Pampaloni and C. S. Pomelli, Phys. Chem. Chem. Phys., 2018, 20, 5057 DOI: 10.1039/C7CP07289A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements