(6,6)-PHENYL C71 BUTYRIC ACID METHYL ESTER, 99% (MIXTURE OF ISOMERS)

Synonym(s):[70]PCBM;3′H-Cyclopropa[8,25] [5,6]fullerene-C₇₀-D₅h(6)-3′butanoic acid;3′Phenyl-3′H-cyclopropa[8,25] [5,6]fullerene-C₇₀-D₅h(6)-3′butanoic acid, methyl ester

CAS NO.：609771-63-3
Empirical Formula: C82H14O2
Molecular Weight: 1031.01
MDL number: MFCD09842750
SAFETY DATA SHEET (SDS)
Update Date: 2026-01-13 11:25:15

(6,6)-PHENYL C71 BUTYRIC ACID METHYL ESTER, 99% (MIXTURE OF ISOMERS) Structural

What is (6,6)-PHENYL C71 BUTYRIC ACID METHYL ESTER, 99% (MIXTURE OF ISOMERS)?

Description

PC70BM is a fullerene electron acceptor commonly used in the most efficient organic photovoltaic devices. The non-symmetrical C70 cage of PC70BM enables energetic transitions that are forbidden in C60, improving the absorption characteristics over PC60BM for the visible range of the solar spectrum . This allows increased photon harvesting, and a potentially higher photocurrent for devices using PC70BM rather than PC60BM.?The 95% purity PC70BM is recommended for general applications, and has produced power conversion efficiencies of over 9% in our own laboratories when mixed with a low bandgap polymeric donor,?while the 99% PC70BM is recommended where ultimate performance is required.

Chemical properties

Light brown to black solid

The Uses of (6,6)-PHENYL C71 BUTYRIC ACID METHYL ESTER, 99% (MIXTURE OF ISOMERS)

[70]PCBM can be blended with a variety of electron donors, which include P3HT and MDMO-PPV, for the fabrication of polymeric solar cells with a high power conversion efficiency (PCE). It can also be used in the organic field effect transistor (OFET) based applications.

General Description

[6,6]-Phenyl C₇₁?butyric acid methyl ester, mixture of isomers ([70]PCBM), is a high fullerene analog to [60]PCBM, which has an enhanced absorption of light in the visible region. It can be used in the development of electrochemical devices with a high current density.

References

[1] Hadad C, et al. Efficient Microwave-Assisted Synthesis of PCBM Methanofullerenes (C60 and C70). European Journal of Organic Chemistry, 2015; 2015: 1423-1427.
[2] Caddeo C, et al. Theoretical insight on PTB7:PC71BM, PTB7-th:PC71BM and Si-PCPDTBT:PC71BM interactions governing blend nanoscale morphology for efficient solar cells. Nano Energy, 2021; 82: 105708.

Properties of (6,6)-PHENYL C71 BUTYRIC ACID METHYL ESTER, 99% (MIXTURE OF ISOMERS)

Melting point:	min 0.015 cm2/Vs (HMDS Si/SiO2 substrate)[muFET]
Density	2.67±0.1 g/cm3(Predicted)
solubility	chlorobenzene: soluble
form	powder to crystal
color	Black
EPA Substance Registry System	3'H-Cyclopropa[8,25][5,6]fullerene-C70-D5h(6)-3'-butanoic acid, 3'-phenyl-, methyl ester (609771-63-3)

Safety information for (6,6)-PHENYL C71 BUTYRIC ACID METHYL ESTER, 99% (MIXTURE OF ISOMERS)

Computed Descriptors for (6,6)-PHENYL C71 BUTYRIC ACID METHYL ESTER, 99% (MIXTURE OF ISOMERS)

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