2FIC

CAS Number 2083617-82-5

Chemistry Building Blocks, Fluorinated Building Blocks, Monomers

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

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Overview
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2FIC, namely 2-(5,6-Difluoro-3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile (CAS number 2083617-82-5), is electron deficient. It is used as a building block to prepare non-fullerene acceptors (NFAs) such as ITIC-2F, IHIC-2F, IEIC-2F, IXIC-2F for highly efficient organic photovoltaic devices.

Fluorination of the end groups can further extend the absorption of the targeted NFAs into near infrared (NIR) due to enhanced intramolecular charge transfer between the core of the NFAs and the end 2FIC groups.

2FIC is strong electron-withdrawing and the electron mobility of the NFAs can be promoted by such intermolecular interactions through forming noncovalent F···S and F···H bonds.

Electron withdrawing building block

For the preparation of non-fullerene acceptors (NFAs)

Fluoride substituent

Expand the absorption of NFAs into near infrared (NIR)

Worldwide shipping

Quick and reliable shipping

Improved electron mobility

Strong intermolecular interactions from halogen-bonding

General Information

CAS Number	2083617-82-5
Chemical Formula	C₁₂H₄F₂N₂O
Molecular Weight	230.17 g/mol
Full Name	2-(5,6-Difluoro-3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile
Synonyms	IC-2F, EG-2F, ID-F, 2-(5,6-Difluoro-2,3-dihydro-3-oxo-1H-inden-1-ylidene)propanedinitrile
Classification / Family	Malononitrile, Indanone, Monomer and intermediates, ITIC, None-fullerene acceptors (NFAs), NFA-OSCs, printing electronics

Chemical Structure

IC-2F, 2-(5,6-difluoro-3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile, 2083617-82-5 — Chemical structure of 2FIC, 2-(5,6-Difluoro-3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile

Product Details

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

MSDS Documentation

2FIC MSDS Sheet

Literature and Reviews

Design, Synthesis, and Photovoltaic Characterization of a Small Molecular Acceptor with an Ultra‐Narrow Band Gap, H. Yao et al., Angew. Chem. Int. Ed., 56, 3045 (2017); doi: 10.1002/anie.201610944.
Molecular Optimization Enables over 13% Efficiency in Organic Solar Cells, W. Zhao et al., J. Am. Chem. Soc., 139(21), 7148-7151 (2017); doi: 10.1021/jacs.7b02677.
A Twisted Thieno[3,4-b]thiophene-Based Electron Acceptor Featuring a 14-π-Electron Indenoindene Core for High-Performance Organic Photovoltaics, S. Xu et al., Adv. Mater., 1704510 (2017); DOI: 10.1002/adma.201704510.
Naphthodithiophene-Based Nonfullerene Acceptor for High-Performance Organic Photovoltaics: Effect of Extended Conjugation, J. Zhu et al,, Adv. Mater., 30, 1704713 (2018); DOI: 10.1002/adma.201704713.

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