Order Code: M2149A1
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Not in stock (price excludes taxes)


Batch Quantity Price
M2149A1 50 mg £234.9
M2149A1 100 mg £399.2
M2149A1 250 mg £831.6
M2149A1 500 mg £1496.8
M2149A1 1 g £2694.3

General Information

Purity 99% (1H NMR)
Full name 3,9-bis(2-methylene-((3-(1,1-dicyanomethylene)-6,7-dichloro)-indanone))-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2’,3’-d’]-s-indaceno[1,2-b:5,6-b’]dithiophene
Synonyms IT-4Cl, ITIC-4Cl
Chemical formula C94H78Cl4N4O2S4
CAS number n/a
Molecular weight 1565.72 g/mol
HOMO / LUMO HOMO = -5.75 eV, LUMO = -4.09 eV [1]
Classification / Family NFAs, Organic semiconducting materials, Low band-gap small molecule, Small molecular acceptor, Organic photovoltaics, Polymer solar cells, NF-PSCs.
itic-dcl, it-4cl
Chemical structure of ITIC-DCl.


ITIC-DCl, one of the out-performing ITIC family members, is always used as an acceptor material to replace fullerene in non-fullerene organic solar cells (NFA-OSCs) or non-fullerene polymer solar cells (NFA-PSCs). When compared with IT-4F (ITIC-2F), ITIC-DM exhibits lower HOMO/LUMO energy levels due to the partial larger dipole moment of the chloro-containing molecules.

Together with IT-2Cl as an acceptor material, ITIC-DCl achieved a power conversion efficiency (PCE) over 14% when PBDB-T-F was used as a donor polymer material. 

Devices architecture: ITO/PEDOT:PSS (35 nm)/PBDB-T-2F:IT-2Cl(20%):IT-4Cl(80%) (95-100 nm)/PFN-Br/Al (100 nm).

Characterisation (1NMR)

1H-NMR spectrum of ITIC-DCl in CDCl(see the full version).

Literature and Reviews

  1. Over 14% Efficiency in Organic Solar Cells Enabled by Chlorinated Nonfullerene Small-Molecule Acceptors, H. Zhang et al., Adv. Mater., 30, 1800613 (2018); DOI: 10.1002/adma.201800613.
  2. Fluorination vs. chlorination: a case study on high performance organic photovoltaic materials, Y. Zhang et al., Sci. China. Chem., 61 (10), 1328-1337 (2018); doi:10.1007/s11426-018-9260-2.
  3. Morphology Control Enables Efficient Ternary Organic Solar Cells, Y. Xie et al., Adv. Mater., 30, 1803045 (2018); DOI: 10.1002/adma.201803045.
  4. Nonfullerene small-molecule acceptors with perpendicular side-chains for fullerene-free solar cells, F. Shen et al., Mater. Chem. A, 6, 15433 (2018); DOI: 10.1039/c8ta04718a.