Polymeric near infrared emitters with bay-annulated indigo moieties

Rodrigues, Ana Clara B.; Eckert, A.; Pina, João; Scherf, Ullrich; Melo, J. Sérgio Seixas de

doi:10.1039/d1ma00260k

Cited by 4 publications

(1 citation statement)

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“…[29][30][31][32][33] As a linked unit in the conjugated polymer, replacing the single thiophene ring with the fused heteroaromatic ring endows the resulting polymer with tunable physicochemical and semiconducting properties. [34][35][36] For example, introducing the benzo[c] [1,2,5]thiadiazole unit into a thiopheneflanked p-AQM polymer backbone offers improved backbone rigidity, stronger intermolecular interactions, and higher crystallinity, endowing the resulting polymer with high hole transport mobility. 37 Therefore, the introduction of the fused heteroaromatic rings in p-AQMs may further expand the molecular design strategies of p-AQM-based conjugated polymers.…”

Section: Introductionmentioning

confidence: 99%

6H-[1,2,5]Thiadiazolo[3,4-e]thieno[3,2-b]indole-flanked para-azaquinodimethane based aromatic-quinoidal polymer semiconductors with high molecular weights synthesized via direct arylation polycondensation

Xiao

et al. 2023

Mater. Adv.

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Section: Introductionmentioning

confidence: 99%

6H-[1,2,5]Thiadiazolo[3,4-e]thieno[3,2-b]indole-flanked para-azaquinodimethane based aromatic-quinoidal polymer semiconductors with high molecular weights synthesized via direct arylation polycondensation

Xiao

et al. 2023

Mater. Adv.

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Utilization of Hypervalent Bonds as a Novel Strategy for Manipulating Energy Levels of π‐Conjugated Systems

Gon,

Tanaka

2024

Eur J Org Chem

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The unique optical properties created by the combination of azobenzene‐based π‐conjugated systems and hypervalent bonds are summarized. The hypervalent bond, a polarized three‐center four‐electron (3c‐4e) bond, simultaneously provides electron‐donating and ‐withdrawing effects to the directly attached π‐conjugated system. The resulting hypervalent compounds have a dramatically narrow energy gap showing near‐infrared (NIR) emission despite the limited size of π‐conjugated systems. In addition, the hypervalent compounds also exhibit stimuli‐responsive chromism through the reversible coordination‐number shift of the central main‐group elements in both crystals and π‐conjugated polymer films. We also explain that the nature of hypervalent bonds depends on the element type, which is particularly effective in bringing out the properties of heavy elements. In this review, we describe that the use of hypervalent bonds is a novel strategy not only for manipulating the energy levels of the π‐conjugated system but also for developing a variety of functional materials based on the newly rising properties from hypervalent element.

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Selective modulation of energy levels of frontier orbitals in solid-state luminescent boron-fused azomethine polymers with orthogonal orientations to the main chains

et al. 2023

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Polymeric near infrared emitters with bay-annulated indigo moieties

Abstract: Three new copolymers based on bay-annulated indigo (BAI) building blocks were synthesized through Stille-type cross-coupling reactions, alternating the electron-deficient BAI units with thiophene-based donor moieties. Those polymers showed absorption and...

Cited by 4 publications

References 51 publications

6H-[1,2,5]Thiadiazolo[3,4-e]thieno[3,2-b]indole-flanked para-azaquinodimethane based aromatic-quinoidal polymer semiconductors with high molecular weights synthesized via direct arylation polycondensation

6H-[1,2,5]Thiadiazolo[3,4-e]thieno[3,2-b]indole-flanked para-azaquinodimethane based aromatic-quinoidal polymer semiconductors with high molecular weights synthesized via direct arylation polycondensation

Utilization of Hypervalent Bonds as a Novel Strategy for Manipulating Energy Levels of π‐Conjugated Systems

Selective modulation of energy levels of frontier orbitals in solid-state luminescent boron-fused azomethine polymers with orthogonal orientations to the main chains

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