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2ClIC CAS 2197167-50-1
Product Code B581-500mg
Price $450 ex. VAT
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2ClIC, high purity building block for non-fullerene acceptors

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2ClIC, namely 2-(5,6-dichloro-3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile, is used as a building block to prepare non-fullerene acceptors (NFAs) such as ITIC-DCl, IEICO-4Cl, IXIC-4Cl and BTP-4Cl for highly efficient non-fullerene organic solar cells (NFOSCs).

Comparing with 2FIC, chlorination is believed to have a more pronounced role in enhancing intermolecular charge transfer (ICT) effect than fluorination does. However, chlorinated NFAs in general have reduced lowest unoccupied molecular orbit (LUMO) levels, leading to reduced open-circuit voltages (VOC) that could cost in general the overall PCE of the resulting OPV cells.

2197167-50-1 Electron withdrawing building block

Electron withdrawing building block

For the preparation of non-fullerene acceptors

High purity B581

High purity

>98% pure

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2197167-50-1 indanone derivative

chloride substituent

Enhances intermolecular charge transfer

General Information

CAS Number 2197167-50-1
Chemical Formula C12H4Cl2N2O
Molecular Weight 263.08 g/mol
Full Name 2-(5,6-Dichloro-3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile
Synonyms IC-2Cl, IC-2CN-2Cl, 2-(5,6-Dichloro-3-oxoinden-1-ylidene)propanedinitrile
Classification / Family Malononitrile, Indanone, Monomer and inermediates, ITIC, None-fullerene acceptors (NFAs), NFA-OSCs, printing electronics 

Chemical Structure

2ClIC, 2197167-50-1
Chemical structure of 2ClIC

Product Details

Purity >98% (by NMR)
Melting Point N/A
Appearance Pale yellow solid

MSDS Documentation

2ClIC MSDS2ClIC MSDS Sheet

Literature and Reviews

  1. 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.
  2. 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.
  3. Achieving over 16% efficiency for single-junction organic solar cells, B. Fan et al., Sci. China Chem., 62, 6 746-752 (2019); doi: 10.1007/s11426-019-9457-5.
  4. Modulation of End Groups for Low-Bandgap Nonfullerene Acceptors Enabling High-Performance Organic Solar Cells, Y Chen et al., Adv. Energy Mater., 1801203 (2018); DOI: 10.1002/aenm.201801203.

To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.

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