The University of Southampton
×
Filter your search:
University of Southampton Institutional Repository

Tetrahydroxidohexaoxidopentaborate(1-) Salts of C6-linked substituted diimidazolium and dipyrrolidinium cations: synthesis, characterization and XRD studies

Tetrahydroxidohexaoxidopentaborate(1-) Salts of C6-linked substituted diimidazolium and dipyrrolidinium cations: synthesis, characterization and XRD studies
Tetrahydroxidohexaoxidopentaborate(1-) Salts of C6-linked substituted diimidazolium and dipyrrolidinium cations: synthesis, characterization and XRD studies

Several tetrahydroxidohexaoxidopentaborate(1-) salts of N-substituted diimidazolium cations or N-substituted dipyrrolidinium cations linked through N-C6-N chains have been synthesized and characterized spectroscopically (NMR, IR) and by single-crystal XRD studies: [R(NC3H3N)(CH2)6(NC3H3N)R][B5O6(OH)4]2·xH2O (R = Me, x = 0 (1); R = Et, x = 3 (2); [Me(NC3H3N)(CH2(C6H4)CH2)(NC3H3N)Me][B5O6(OH)4]2 (3), [(C4H8N)(R)(CH2)6(R)(NC4H8)][B5O6(OH)4]2·xB(OH)3 (R = Me, x = 0 (4, two polymorphs); R = Et, x = 0 (5); R = Bu, x = 4 (6); R = allyl, x = 0 (7)). Representative samples (1 and 7) were also characterized by thermal (TGA/DSC) studies; compounds are thermally decomposed to B2O3 in air. Numerous anion-anion H-bonding interactions are present in the solid-state structures of 1–5 and 7 as giant anionic networks. Unusually, in 6 there are no R22(8) anion-anion interactions as the co-crystallized B(OH)3 bridges between all pentaborate anions. H-bonding interactions in 1–7 have been examined using Etter graph set analysis; C(8), C33(18), R22(8), R22(12) and R44(12) motifs have been identified.

H-bonding, imidazolium, pentaborate, pyrrolidium, tetrahydroxidohexaoxidopeentaborate(1-), XRD
2304-6740
Al-Dulayymi, Ahmad R.
413e92b4-dc52-4747-b06e-58e71d3ddfca
Beckett, Michael A.
5b021ef6-fa5c-4f6d-9998-3313558f0dc1
Braganca, Radek
f1d38acc-ea4f-46f3-9e7a-21ceb55fcb44
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Horton, Peter N.
154c8930-bfc3-495b-ad4a-8a278d5da3a5
Rixon, Thomas A.
f5d9498d-b8cc-43b4-9b32-99253e1263db
Al-Dulayymi, Ahmad R.
413e92b4-dc52-4747-b06e-58e71d3ddfca
Beckett, Michael A.
5b021ef6-fa5c-4f6d-9998-3313558f0dc1
Braganca, Radek
f1d38acc-ea4f-46f3-9e7a-21ceb55fcb44
Coles, Simon J.
3116f58b-c30c-48cf-bdd5-397d1c1fecf8
Horton, Peter N.
154c8930-bfc3-495b-ad4a-8a278d5da3a5
Rixon, Thomas A.
f5d9498d-b8cc-43b4-9b32-99253e1263db

Al-Dulayymi, Ahmad R., Beckett, Michael A., Braganca, Radek, Coles, Simon J., Horton, Peter N. and Rixon, Thomas A. (2024) Tetrahydroxidohexaoxidopentaborate(1-) Salts of C6-linked substituted diimidazolium and dipyrrolidinium cations: synthesis, characterization and XRD studies. Inorganics, 12 (8), [220]. (doi:10.3390/inorganics12080220).

Record type: Article

Abstract

Several tetrahydroxidohexaoxidopentaborate(1-) salts of N-substituted diimidazolium cations or N-substituted dipyrrolidinium cations linked through N-C6-N chains have been synthesized and characterized spectroscopically (NMR, IR) and by single-crystal XRD studies: [R(NC3H3N)(CH2)6(NC3H3N)R][B5O6(OH)4]2·xH2O (R = Me, x = 0 (1); R = Et, x = 3 (2); [Me(NC3H3N)(CH2(C6H4)CH2)(NC3H3N)Me][B5O6(OH)4]2 (3), [(C4H8N)(R)(CH2)6(R)(NC4H8)][B5O6(OH)4]2·xB(OH)3 (R = Me, x = 0 (4, two polymorphs); R = Et, x = 0 (5); R = Bu, x = 4 (6); R = allyl, x = 0 (7)). Representative samples (1 and 7) were also characterized by thermal (TGA/DSC) studies; compounds are thermally decomposed to B2O3 in air. Numerous anion-anion H-bonding interactions are present in the solid-state structures of 1–5 and 7 as giant anionic networks. Unusually, in 6 there are no R22(8) anion-anion interactions as the co-crystallized B(OH)3 bridges between all pentaborate anions. H-bonding interactions in 1–7 have been examined using Etter graph set analysis; C(8), C33(18), R22(8), R22(12) and R44(12) motifs have been identified.

Text
inorganics-12-00220 - Version of Record
Available under License Creative Commons Attribution.
Download (6MB)

More information

Accepted/In Press date: 13 August 2024
Published date: 15 August 2024
Keywords: H-bonding, imidazolium, pentaborate, pyrrolidium, tetrahydroxidohexaoxidopeentaborate(1-), XRD

Identifiers

Local EPrints ID: 494408
URI: http://eprints.soton.ac.uk/id/eprint/494408
DOI: doi:10.3390/inorganics12080220
ISSN: 2304-6740
PURE UUID: 3aa4048c-a88b-4b52-9a09-6418cf557732
ORCID for Simon J. Coles: ORCID iD orcid.org/0000-0001-8414-9272
ORCID for Peter N. Horton: ORCID iD orcid.org/0000-0001-8886-2016

Catalogue record

Date deposited: 07 Oct 2024 17:17
Last modified: 08 Oct 2024 01:36

Export record

Altmetrics

Contributors

Author: Ahmad R. Al-Dulayymi
Author: Michael A. Beckett
Author: Radek Braganca
Author: Simon J. Coles ORCID iD
Author: Peter N. Horton ORCID iD
Author: Thomas A. Rixon

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Library staff additional information
Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×