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A Facile Route to Bis(pyridyl‐1,3,5‐triazine) Ligands with Fluorescing Properties
Author(s) -
Geist Matthias F.,
Chartrand Daniel,
Cibian Mihaela,
Zieschang Fabian,
Hanan Garry S.,
Kurth Dirk G.
Publication year - 2015
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.201403521
Subject(s) - polythiophene , thermochromism , stille reaction , chemistry , luminescence , triazine , combinatorial chemistry , nanosecond , conjugated system , yield (engineering) , photochemistry , polymer chemistry , organic chemistry , polymer , optoelectronics , materials science , optics , laser , physics , conductive polymer , metallurgy
We present a general method for the preparation of bis(pyridyl‐1,3,5‐triazine) (dpt) ligands via Stille coupling chemistry. The synthetic procedure surpasses known trimerisation procedures in terms of yield, flexibility, and diversity, as ditopic ligands with different spacers are now available. Polythiophene spacers give rise to different colours by extending the conjugated system and increasing HOMO energy levels. The luminescence properties can be tuned by the spacers, the emission is found in the region from 300–550 nm with nanosecond lifetimes. Preliminary experiments indicate thermochromic properties for the dpt‐Fe II complexes.