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Chemistry Building Blocks, Dibromo Monomers, Heterocyclic Building Blocks, Materials, Monomers

Product Code B1111-250mg
Price £300 ex. VAT

High-quality DTQx-2BOThBr

A quinoxaline derivative monomer as electron deficient acceptor unit for the synthesis of medium to high bandgap oligomer and polymer donors in application of polymer solar cells, OFETs and perovskite solar cells.

Specifications | MSDS | Literature and Reviews

6,9-bis(5-bromo-4-(2-butyloctyl)thiophen-2-yl)dithieno[3,2-f:2',3'-h]quinoxaline (DTQx-2BOThBr) is consisted of a fused dithieno[3,2-f:2′,3′-h]quinoxaline (DTQx) core that are joined by 5-bromo-4-(2-butyloctyl)thiophene on each side. The two large side-chains can enhance the solubility of the target molecules and also promote film crystallinity and morphology of the devices that are processed from the target molecules.

The parent structure quinoxaline has two fused six-membered rings, benzene and pyrazine. Distributed symmetrically in the pyrazine ring, the two nitrogen atoms at the 1, 4-positions give a weak electron-deficient characteristic of the quinoxaline unit. making it an ideal acceptor to construct medium to wide bandgap D–A type copolymer donors by copolymerizing it with various electron donating units.

Dithieno[3,2-f:2′,3′-h]quinoxaline is the further fused derivative of quinoxaline with two thiophenes on both sides of the benzene ring. Comparing with quinoxaline, dithieno[3,2-f:2′,3′-h]quinoxaline is a more planar and rigid structure which can promote ordered π–π intermolecular stackings and thus higher charge mobility in the film state of the molecules with a dithieno[3,2-f:2′,3′-h]quinoxaline moiety.

General Information

CAS Number N/A
Chemical Formula C44H58Br2N2S4
Full Name 6,9-bis(5-bromo-4-(2-butyloctyl)thiophen-2-yl)dithieno[3,2-f:2',3'-h]quinoxaline
Molecular Weight 903.01 g/mol
Synonyms DTQx-2BOThBr
Classification / Family Dithieno[3,2-f:2',3'- h]quinoxaline (DTQx), semiconductor synthesis intermediates, low band gap polymers, OLED, OFETs, organic photovoltaics

Chemical Structure

6,9-bis(5-bromo-4-(2-butyloctyl)thiophen-2-yl)dithieno[3,2-f:2',3'-h]quinoxaline chemical structure
6,9-bis(5-bromo-4-(2-butyloctyl)thiophen-2-yl)dithieno[3,2-f:2',3'-h]quinoxaline (DTQx-2BOThBr) chemical structure

Product Details

Purity >98% (HPLC)
Melting Point N/A
Appearance Yellow to orange powder/crystals

MSDS Documentation

6,9-bis(5-bromo-4-(2-butyloctyl)thiophen-2-yl)dithieno[3,2-f:2',3'-h]quinoxaline MSDS6,9-bis(5-bromo-4-(2-butyloctyl)thiophen-2-yl)dithieno[3,2-f:2',3'- h]quinoxaline MSDS Sheet


Batch Quantity Price
B1111-250mg 250 mg £300
B1111-500mg 500 mg £480
B1111-1g 1 g £760
B1111-5g 5 g £3100

Literature and Reviews

  1. Star polymer donors, J. Cao et al., J. Semicond., 43, 070201 (2022); DOI: 10.1088/1674-4926/43/7/070201.
  2. Fine Tuning Alkyl Substituents on Dithienoquinoxaline-Based Wide-Bandgap Polymer Donors for Organic Photovoltaics, M. Busireddy et al., ACS Appl. Mater. Interfaces, 14 (19), 22353–22362 (2022); DOI: 10.1021/acsami.2c04104.
  3. Quinoxaline-Based D–A Copolymers for the Applications as Polymer Donor and Hole Transport Material in Polymer/Perovskite Solar Cells, C. Sun et al., Adv. Mater., 2104161 (2021); DOI: 10.1002/adma.202104161.

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