Effective and efficient photoluminescence of salicylate-ligating terbium(iii) clusters stabilized by multiple phenyl–phenyl interactions?

Chemical Communications Pub Date: 2007-01-11 DOI: 10.1039/B616387D

Abstract

A luminescent nonanuclear terbium(III) hydroxo cluster, Tb9(Hesa)16(μ-OH)10(NO3) (Hesa: hexyl salicylate), stabilized by unique two-way phenyl ring interactions, π-π stackings (d = 3.482–3.599 ?) and C–H-π interactions (d = 2.75–3.03 ?) between adjacent pairs of salicylates, was structurally characterized based on X-ray analysis, and the favourable absorption change and efficient photoluminescent characteristic were rationalized as being due to J-type π-π stackings, which are dramatically enhanced by hexyl groups in hexyl salicylate ligands.

Graphical abstract: Effective and efficient photoluminescence of salicylate-ligating terbium(iii) clusters stabilized by multiple phenyl–phenyl interactions
Recommended Literature