TY - JOUR

T1 - Re(I) Complexes as Backbone Substituents and Cross-Linking Agents for Hybrid Luminescent Polysiloxanes and Silicone Rubbers

AU - Барановский, Егор Михайлович

AU - Хистяева, Виктория Валерьевна

AU - Дерябин, Константин Валерьевич

AU - Петровский, Станислав Константинович

AU - Кошевой, Игорь Олегович

AU - Колесников, Илья Евгеньевич

AU - Грачева, Елена Валерьевна

AU - Исламова, Регина Маратовна

N1 - Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

PY - 2021/11/2

Y1 - 2021/11/2

N2 - 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 cy-cloaddition (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 polysilox-ane 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) 3Cl(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.

AB - 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 cy-cloaddition (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 polysilox-ane 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) 3Cl(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.

KW - Azide-alkyne cycloaddition

KW - Functional polysiloxanes

KW - Luminescent polysiloxanes

KW - Luminescent silicone rubbers

KW - Rhenium complexes

KW - POLYMERS

KW - rhenium complexes

KW - EXCITED-STATE

KW - luminescent polysiloxanes

KW - COPOLYMERS

KW - azide-alkyne cycloaddition

KW - ELASTOMERS

KW - luminescent silicone rubbers

KW - functional polysiloxanes

UR - http://www.scopus.com/inward/record.url?scp=85119583510&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/9d7151ca-30b3-3ced-896f-45de44a8bc5d/

U2 - 10.3390/molecules26226866

DO - 10.3390/molecules26226866

M3 - Article

C2 - 34833958

VL - 26

JO - Molecules

JF - Molecules

SN - 1420-3049

IS - 22

M1 - 6866

ER -