The Metal-Metal-to-Ligand Charge Transfer Excited State and Supramolecular Polymerization of Luminescent Pincer PdII -Isocyanide Complexes.

Qingyun WanWai-Pong ToChen YangChi-Ming Che

Published in: Angewandte Chemie (International ed. in English) (2018)

Pincer PdII -isocyanide complexes are described that display intermolecular interactions and emissive 3 MMLCT excited states in aggregation state(s) at room temperature. The intermolecular PdII -PdII and ligand-ligand interactions drive these complexes to undergo supramolecular polymerization in a living manner. Comprehensive spectroscopic studies reveal a pathway with a kinetic trap that can be modulated by changing the counteranion and metal atom. The PdII supramolecular assemblies comprise two different aggregation forms with only one to be emissive. DFT/TDDFT calculations lend support to the MMLCT absorption and emission of these pincer PdII -isocyanide aggregates.

Keyphrases

energy transfer
room temperature
quantum dots
density functional theory
molecular dynamics
ionic liquid
water soluble
light emitting
electron transfer