Issue 40, 2022

Selective separation of planar and non-planar hydrocarbons using an aqueous Pd6 interlocked cage

Abstract

Polycyclic aromatic hydrocarbons (PAHs) find multiple applications ranging from fabric dyes to optoelectronic materials. Hydrogenation of PAHs is often employed for their purification or derivatization. However, separation of PAHs from their hydrogenated analogues is challenging because of their similar physical properties. An example of such is the separation of 9,10-dihydroanthracene from phenanthrene/anthracene which requires fractional distillation at high temperature (∼340 °C) to obtain pure anthracene/phenanthrene in coal industry. Herein we demonstrate a new approach for this separation at room temperature using a water-soluble interlocked cage (1) as extracting agent by host–guest chemistry. The cage was obtained by self-assembly of a triimidazole donor L·HNO3 with cis-[(tmeda)Pd(NO3)2] (M) [tmeda = N,N,N′,N′-tetramethylethane-1,2-diamine]. 1 has a triply interlocked structure with an inner cavity capable of selectively binding planar aromatic guests.

Graphical abstract: Selective separation of planar and non-planar hydrocarbons using an aqueous Pd6 interlocked cage

Supplementary files

Article information

Article type
Edge Article
Submitted
21 Aug 2022
Accepted
13 Sep 2022
First published
14 Sep 2022
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY license

Chem. Sci., 2022,13, 11764-11771

Selective separation of planar and non-planar hydrocarbons using an aqueous Pd6 interlocked cage

D. Chakraborty, R. Saha, J. K. Clegg and P. S. Mukherjee, Chem. Sci., 2022, 13, 11764 DOI: 10.1039/D2SC04660A

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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