Re(I) Complexes as Backbone Substituents and Cross-Linking Agents for Hybrid Luminescent Polysiloxanes and Silicone Rubbers.

Autor: Baranovskii EM; Institute of Chemistry, St Petersburg University, 198504 St. Petersburg, Russia., Khistiaeva VV; Institute of Chemistry, St Petersburg University, 198504 St. Petersburg, Russia.; Department of Chemistry, University of Eastern Finland, 80101 Joensuu, Finland., Deriabin KV; Institute of Chemistry, St Petersburg University, 198504 St. Petersburg, Russia., Petrovskii SK; Institute of Chemistry, St Petersburg University, 198504 St. Petersburg, Russia., Koshevoy IO; Department of Chemistry, University of Eastern Finland, 80101 Joensuu, Finland., Kolesnikov IE; Center for Optical and Laser Materials Research, Research Park of St Petersburg University, 198504 St. Petersburg, Russia., Grachova EV; Institute of Chemistry, St Petersburg University, 198504 St. Petersburg, Russia., Islamova RM; Institute of Chemistry, St Petersburg University, 198504 St. Petersburg, Russia.
Jazyk: angličtina
Zdroj: Molecules (Basel, Switzerland) [Molecules] 2021 Nov 14; Vol. 26 (22). Date of Electronic Publication: 2021 Nov 14.
DOI: 10.3390/molecules26226866
Abstrakt: This study focuses on the synthesis of hybrid luminescent polysiloxanes and silicone rubbers grafted by organometallic rhenium(I) complexes using Cu(I)-catalyzed azido-alkyne cycloaddition (CuAAC). The design of the rhenium(I) complexes includes using a diimine ligand to create an MLCT luminescent center and the introduction of a triple C≡C bond on the periphery of the ligand environment to provide click-reaction capability. Poly(3-azidopropylmethylsiloxane- co -dimethylsiloxane) (N 3 -PDMS) was synthesized for incorporation of azide function in polysiloxane chain. [Re(CO) 3 (MeCN)(5-(4-ethynylphenyl)-2,2'-bipyridine)]OTf (Re1) luminescent complex was used to prepare a luminescent copolymer with N 3 -PDMS (Re1-PDMS), while [Re(CO) 3 Cl(5,5'-diethynyl-2,2'-bipyridine)] (Re2) was used as a luminescent cross-linking agent of N 3 -PDMS to obtain luminescent silicone rubber (Re2-PDMS). The examination of photophysical properties of the hybrid polymer materials obtained show that emission profile of Re(I) moiety remains unchanged and metallocenter allows to control the creation of polysiloxane-based materials with specified properties.
Databáze: MEDLINE
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