4,4'-(Hexafluoroisopropylidene)diphthalic anhydride (6FDA)

CAS Number 1107-00-2

Chemistry Building Blocks, COF Ligands, Diamines and Dianhydrides, Fluorinated Building Blocks, Monomers, Porous Organic Frameworks

MSDS

4,4'-(Hexafluoroisopropylidene)diphthalic anhydride (6FDA) CAS 1107-00-2

A fluorinated dianhydride building block

Normally used for the synthesis of polyimides in application of gas separation membranes, solar cells, and low-loss telecommunication

Overview
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4,4'-(Hexafluoroisopropylidene)diphthalic anhydride (6FDA), CAS number 1107-00-2, has two phthalic anhydrides bridged by a perfluorinated isopropyl group. The electron withdrawing effect from trifluoromethyl groups minimises the electron delocalization of the molecule, and thus the dielectric constant of the synthesized polyimides (dielectric constant 2.33). Such low signal loss polyimides are ideal for telecommunication applications.

The polyimides from 6FDA are popular to use for mixed-matrix membranes. The polyimide matrices provide good dispersion for the fillers and can load up to 50 wt% of the fillers. Those membranes have found their applications in highly selective gas separation (CO₂/CH₄) and solar cell encapsulation (the power conversion efficiency of Si-based solar cells is enhanced from 14.67% to 15.64%).

Multiple functional groups

For facile synthesis

Fluorinated dianhydride building block

For polyimides, COFs, and solar cells

Worldwide shipping

Quick and reliable shipping

High purity

>99% High purity

General Information

CAS Number	1107-00-2
Chemical Formula	C₁₉H₆F₆O₆
Full Name	4,4'-(Hexafluoroisopropylidene)diphthalic anhydride
Molecular Weight	444.24 g/mol
Synonyms	2,2-Bis(3,4-dicarboxyphenyl)-1,1,1,3,3,3-hexafluoropropane, 5-[2-(1,3-dioxo-2-benzofuran-5-yl)-1,1,1,3,3,3-hexafluoropropan-2-yl]-2-benzofuran-1,3-dione, 4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride)
Classification / Family	Dianhydride building block, Fluorinated building block, Polyimides, Solar cells, Membranes

Chemical Structure

Product Details

Purity	>99%
Melting Point	T_m = 244 °C – 247 °C
Appearance	White to pale yellow powder/crystal

MSDS Documentation

4,4'-(Hexafluoroisopropylidene)diphthalic anhydride (6FDA) MSDS Sheet

Literature and Reviews

Aligned metal-organic framework nanoplates in mixed-matrix membranes for high selective CO₂/CH₄ separation, L. Wang et al., Adv. Mater. Interfaces, 2202524(2023); DOI: 10.1002/admi.202202524.
Design of imide oligomer-mediated MOF clusters for solar cell encapsulation systems by interface fusion strategy, M. Wu et al., Adv. Sci., 10, 2206748(2023); DOI: 10.1002/advs.202206748.
Establishing gas transport highways in MOF-based mixed matrix membranes, C. Li et al., Sci. Adv., 9(13), eadf5087(2023); DOI: 10.1126/sciadv.adf5087.
Low-dielectric polyimide nanofoams derived from 4,4'-(hexafluoroisopropylidene)diphthalic anhydride and 2,2'-bis(trifluoromethyl)benzidine, P. Lv et al., RSC Adv., 7, 4848-4854(2017); DOI: 10.1039/c6ra25604j.
Mixed-matrix membranes containing porous materials for gas separation: from metal-organic frameworks to discrete molecular cages, Z. Yang et al., Engineering, in press(2023); DOI: 10.1016/j.eng.2022.07.022.
Polyimide/crown ether composite film with low dielectric constant and low dielectric loss for high signal transmission, H. Li et al., RSC Adv., 13, 7585-7956(2023); DOI: 10.1039/d2ra07043j.
Sustainable dielectric films with ultralow permittivity from soluble fluorinated polyimide, H Li et al., Molecules, 28, 3095(2023); DOI: 10.3390/molecules28073095.

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