Novel ditopic Schiff base rhenium(I) metallorectangle: synthesis, characterization, and chemical sensing of aromatic hydrocarbons (AHCs)

Dhanpat, Shobha Abigail, Richards, Kameisha, Ramsaroop, Padminee, Kumar, Anil, Kariuki, Benson M. ORCID: https://orcid.org/0000-0002-8658-3897, Ming, Wilson Sue Chee and Kumar, Arvind 2025. Novel ditopic Schiff base rhenium(I) metallorectangle: synthesis, characterization, and chemical sensing of aromatic hydrocarbons (AHCs). Journal of the Indian Chemical Society , 102011. 10.1016/j.jics.2025.102011 Item availability restricted.

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Abstract

Metal coordination-directed (MCD) novel neutral rectangular rhenium-based metallocycle, compound 1, with the formula [(CO) 3 Re(SB)Re(CO) 3 ] 2 (OC 2 H 5 ) 4 was prepared using the orthogonal bonding approach. The self-assembled metallorectangle consisting of fac-Re(CO)3 corners, a ditopic Schiff base, and oxo linker (ethoxy) as two sides was synthesized from rhenium decacarbonyl and a ditopic Schiff base diimine ligand. It was characterized by Infrared and NMR spectroscopy, ESI-Mass spectrometry, UV-Vis spectroscopy, and Single-Crystal X-ray crystallography. Thermal analyses were performed using Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA) techniques, and a chemical sensing study using fluorescence spectroscopy. The single-crystal X-ray crystallographic study shows that the cavity of the rectangular framework measures 19.9 × 3.4 × 20.2 Å (l × b × d) as defined by the rhenium centres. Compound 1 represents a novel class of mixed-ligand cavity-containing rhenium-based metallocyclic rectangle with potential recognition capabilities of aromatic hydrocarbons (AHCs).

Item Type:	Article
Date Type:	Published Online
Status:	In Press
Schools:	Schools > Chemistry
Additional Information:	License information from Publisher: LICENSE 1: Title: This article is under embargo with an end date yet to be finalised.
Publisher:	Indian Chem Soc
ISSN:	0019-4522
Date of First Compliant Deposit:	19 August 2025
Date of Acceptance:	11 August 2025
Last Modified:	19 Aug 2025 11:15
URI:	https://orca.cardiff.ac.uk/id/eprint/180555

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