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Issue 12, 2017
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Fullerene C60 dianion salt, (Me4N+)2(C602−)·(TPC)2·2C6H4Cl2, where TPC is triptycene, obtained by a multicomponent approach

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Abstract

A multicomponent approach provided a new salt (Me4N+)2(C602−)·(TPC)2·2C6H4Cl2 (1) containing the discrete C602− dianions, where TPC is triptycene. The crystal structure consists of alternating layers of closely packed zigzag fullerene chains solvated with C6H4Cl2 molecules and the TPC network with Me4N+ cations. The hexagonal vacancies in the TPC network accommodate the cations and simultaneously act as a template for the formation of zigzag fullerene chains. Optical spectra support the formation of C602− dianions. According to the electron paramagnetic resonance technique (EPR) the C602− dianions have a diamagnetic singlet ground state below 140 K. The increased intensity of the EPR signal above this temperature reflects the growing thermal population of the excited triplet state. This signal has g = 2.0003 and a linewidth of 2.53 mT at 302 K and the estimated singlet–triplet energy gap is 674 ± 10 K (468 ± 7 cm−1).

Graphical abstract: Fullerene C60 dianion salt, (Me4N+)2(C602−)·(TPC)2·2C6H4Cl2, where TPC is triptycene, obtained by a multicomponent approach

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Publication details

The article was received on 03 Apr 2017, accepted on 11 May 2017 and first published on 11 May 2017


Article type: Letter
DOI: 10.1039/C7NJ01096F
Citation: New J. Chem., 2017,41, 4779-4782
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    Fullerene C60 dianion salt, (Me4N+)2(C602−)·(TPC)2·2C6H4Cl2, where TPC is triptycene, obtained by a multicomponent approach

    D. V. Konarev, S. I. Troyanov, A. Otsuka, H. Yamochi, G. Saito and R. N. Lyubovskaya, New J. Chem., 2017, 41, 4779
    DOI: 10.1039/C7NJ01096F

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