2ClIC

CAS Number 2197167-50-1

Chemistry Building Blocks, Materials, Monomers, Non-Heterocyclic Building Blocks

2ClIC, high purity building block for non-fullerene acceptors

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Specifications | MSDS | Literature and Reviews

2ClIC (CAS number 2197167-50-1), 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 (V_OC) that could cost in general the overall PCE of the resulting OPV cells.

Electron withdrawing building block

For the preparation of non-fullerene acceptors

High purity

>98% pure

Worldwide shipping

Quick and reliable shipping

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 MSDS Sheet

Literature and Reviews

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.
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.
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.

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.