Ionic Interaction Effects on the Structure and Dynamics of Orthoborate Ionic Materials
Artikel i vetenskaplig tidskrift, 2024

A series of orthoborate-based ionic materials of bis(glycolato)borate ([BGB]) and bis(ethylene-1,2-dioxy)borate anions ([BEDB]) coupled with tetrabutylphosphonium ([P4444]) and tetrabutylammonium ([N4444]) cations have been synthesized, and their physicochemical properties are characterized. The ionic materials based on the most popular orthoborate anion, bis(oxalato)borate anion ([BOB]), which contains four carbonyl groups, are all liquid at ambient temperature, while the bis(glycolato)borate ([BGB]) anion, with two carbonyl groups, and the bis(ethylene-1,2-dioxy)borate ([BEDB]) anion, without carbonyl groups, render solids at ambient temperature. The ionic materials based on the [BGB] anion display the highest decomposition temperatures, and those based on the BEDB anion are the lowest. The [P4444][BGB], [P4444][BEDB], and [N4444][BEDB] salts feature significantly wider plastic phase I temperature ranges than their analogues. FTIR spectroscopy, multinuclear (15N, 31P, 13C, and 11B) solid-state NMR spectroscopy, and single-crystal X-ray diffraction were all used to unveil the ionic interactions and structural features, which display weaker ionic interactions for [BEDB] compared to [BGB] when bearing the same cation and present relatively higher crystallinity of [P4444][BGB] among the ionic materials.

Författare

Yanqi Xu

Luleå tekniska universitet

Anders Reinholdt

Lunds universitet

Oleg N. Antzutkin

Luleå tekniska universitet

Maria Forsyth

Deakin University

Patrik Johansson

Chalmers, Fysik, Materialfysik

Centre national de la recherche scientifique (CNRS)

Faiz Ullah Shah

Luleå tekniska universitet

Crystal Growth & Design

1528-7483 (ISSN) 1528-7505 (eISSN)

Vol. 24 21 8989-8998

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Ämneskategorier

Fysikalisk kemi

DOI

10.1021/acs.cgd.4c01030

Mer information

Senast uppdaterat

2024-11-28