Issue 45, 2022

An unprecedented non-classical polyinterhalogen anion made of [I2Cl] and I2 at the 2-(p-tolyl)selenopheno[2,3-b]pyridinium cation template

Abstract

The reactivity between 2-(p-tolyl)selenopheno[2,3-b]pyridine (L) and ICl in MeCN is presented. Single crystal structure analysis revealed the formation of two distinct crystalline materials both featuring the protonated 2-(p-tolyl)selenopheno[2,3-b]pyridinium cation [HL]+. Colourless crystals were identified as the dihydrate salt [HL]Cl·2H2O (1), and dark-red crystals as compound {[HL]+[I2Cl]}3·1/2I2 (2) that features the peculiar presence of the rare non-classical [I2Cl] interhalide. Halogen Bonds (XBs) between the cocrystallized I2 molecule and [I2Cl] anions led to the novel overall discrete [I10Cl4]4−H-shaped polyinterhalide formation, which is stabilized through hydrogen bonds (HBs) with the templating [HL]+ cations. The experimental observations are supported by extensive theoretical calculations at the DFT level that were employed to study the role played by non-covalent interactions in the formation of the presented unique polyinterhalide.

Graphical abstract: An unprecedented non-classical polyinterhalogen anion made of [I2Cl]− and I2 at the 2-(p-tolyl)selenopheno[2,3-b]pyridinium cation template

Supplementary files

Article information

Article type
Paper
Submitted
26 صفر 1444
Accepted
05 ربيع الثاني 1444
First published
06 ربيع الثاني 1444

New J. Chem., 2022,46, 21921-21929

An unprecedented non-classical polyinterhalogen anion made of [I2Cl] and I2 at the 2-(p-tolyl)selenopheno[2,3-b]pyridinium cation template

M. C. Aragoni, E. Podda, M. Arca, A. Pintus, V. Lippolis, C. Caltagirone, R. H. Bartz, E. J. Lenardão, G. Perin, R. F. Schumacher, S. J. Coles and J. B. Orton, New J. Chem., 2022, 46, 21921 DOI: 10.1039/D2NJ04689J

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