Issue 2, 2025

Lanthanide luminescent di-metallic triple-stranded helicates formed from bis-tridentate (1,2,3-triazol-4-yl)-picolinamide (tzpa) ligands and their higher order self-assemblies

Abstract

The bis-tridentate (1,2,3-triazol-4-yl)-picolinamide (tzpa) ligands 1 and 2 were used in the formation of the luminescent di-metallic Tb(III) triple stranded helicates 3 and 4 (L3Tb2; L = 1 or 2). Both 3 and 4 were formed in high yield under either kinetic or thermodynamic conditions and their binding constant values were evaluated. The photophysical properties of the assemblies were analysed in the solution and solid state. The morphology of the ligands vs. the Tb(III) assemblies were significantly different as detected by SEM.

Graphical abstract: Lanthanide luminescent di-metallic triple-stranded helicates formed from bis-tridentate (1,2,3-triazol-4-yl)-picolinamide (tzpa) ligands and their higher order self-assemblies

Supplementary files

Article information

Article type
Research Article
Submitted
18 Sep 2024
Accepted
13 Nov 2024
First published
14 Nov 2024

Mater. Chem. Front., 2025,9, 258-270

Lanthanide luminescent di-metallic triple-stranded helicates formed from bis-tridentate (1,2,3-triazol-4-yl)-picolinamide (tzpa) ligands and their higher order self-assemblies

D. E. Barry, O. Kotova, N. A. O’Shea, S. R. Donohoe, A. J. Savyasachi and T. Gunnlaugsson, Mater. Chem. Front., 2025, 9, 258 DOI: 10.1039/D4QM00816B

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