1019-12-1Relevant articles and documents
Indolizine-Cyanine Dyes: Near Infrared Emissive Cyanine Dyes with Increased Stokes Shifts
Gayton, Jacqueline,Autry, Shane A.,Meador, William,Parkin, Sean R.,Hill, Glake Alton,Hammer, Nathan I.,Delcamp, Jared H.
, p. 687 - 697 (2019)
Molecular engineering strategies designed to red-shift cyanine dye absorptions and emissions further into the near-infrared (NIR) spectral region are explored. Through the use of a novel donor group, indolizine, with varying cyanine bridge lengths, dye absorptions and emissions, were shifted deeper into the NIR region than common indoline-cyanines. Stokes shifts resulting from intramolecular steric interactions of up to ?60 nm in many cases were observed and explained computationally. Molecular brightnesses of up to 5800 deep into the NIR region were observed. Structure-property relationships are explored for the six indolizine-cyanine dyes with varying cyanine bridge length and indolizine substituents showing broad absorption and emission tunability. The dyes are characterized by crystallography, and the photophysical properties are probed by varying solvent for absorption and emission studies. Computational data show involvement of the entire indolizine ?-system during light absorption, which suggests these systems can be tunable even further into the NIR region through select derivatizations.
Synthesis and characterization of new second-order NLO chromophores containing the isomeric indolizine moiety for electro-optical materials
Kalinin, Alexey A.,Smirnov, Maxim A.,Islamova, Liliya N.,Fazleeva, Guzel M.,Vakhonina, Tatyana A.,Levitskaya, Alina I.,Fominykh, Olga D.,Ivanova, Nataliya V.,Khamatgalimov, Ayrat R.,Nizameev, Irek R.,Balakina, Marina Yu.
, p. 444 - 454 (2017)
To further explore the potential application of the indolizine donor group in nonlinear optical (NLO) chromophores, we have designed and synthesized new push-pull chromophores (MPI-1)-V-TCF and (MPI-3)-V-TCF, having isomeric 3(1)-methyl-2-phenylindolizin-
Indolizine-based chromophores with octatetraene π-bridge and tricyanofurane acceptor: Synthesis, photophysical, electrochemical and electro-optic properties
Kalinin, Alexey A.,Fazleeva, Guzel M.,Burganov, Timur I.,Islamova, Liliya N.,Dudkina, Yulia B.,Kadyrova, Alfira A.,Vakhonina, Tatyana A.,Khamatgalimov, Ayrat R.,Mukhtarov, Anvar S.,Bazarov, Valeriy V.,Katsyuba, Sergey A.,Budnikova, Yulia H.,Balakina, Marina Yu.
, (2019/10/11)
Two isomeric indolizine-based chromophores (MPI-1)-OT-TCF and (MPI-3)-OT-TCF with octatetraene π-bridge and tricyanofuran acceptor moieties have been synthesized and systematically investigated. Chromophores exist as a mixture of E- and Z-isomers in low-p
INDOLIZINE-BASED DYES FOR DYE-SENSITIZED SOLAR CELL
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Page/Page column 33; 37, (2016/04/01)
Compounds for use as sensitizer dyes in dye-sensitized solar cells.
Studies on the base-induced rearrangement of 5-methyl-3-nitrosoindolizine derivatives
Wang, Peng,Cai, Jin,Chen, Junqing,Ji, Min
, p. 1185 - 1191 (2016/01/12)
Here we have studied the rearrangement of 5-methyl-3-nitrosoindolizine derivatives in the presence of K2CO3. 5-Methyl-3-nitrosoindolizine derivatives can be converted to ring-opening, rearrangement and denitrosylation products respec
Synthesis of functionalized indolizines via copper-catalyzed annulation of 2-alkylazaarenes with α,β-unsaturated carboxylic acids
Yang, Yuzhu,Xie, Chunsong,Xie, Yongju,Zhang, Yuhong
supporting information; experimental part, p. 957 - 959 (2012/04/04)
A novel copper-catalyzed annulation of 2-alkylazaarenes with α,β-unsaturated carboxylic acids has been accomplished. This reaction featuring C-H olefination and decarboxylative amination processes provides a concise access to C-2 arylated indolizines from simple and readily available starting materials.
