An unusual donor-acceptor system MnPc-TCNQ/F-TCNQ and the properties of the mixed single crystals of metal phthalocyanines with organic acceptor molecules

The interaction of manganese( ii ) phthalocyanine with 7,7,8,8-tetracyanoquinodimethane and its perfluoro derivative proceeds with the oxidation of Mn and the reduction of the acceptor molecules to give the first mixed single crystals of manganese( iii ) phthalocyanine with TCNQ/F 4 -TCNQ radical an...

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Published in:Dalton transactions : an international journal of inorganic chemistry 2019-11, Vol.48 (46), p.17252-17257
Main Authors: Kataeva, Olga, Metlushka, Kirill, Ivshin, Kamil, Nikitina, Kristina, Alfonsov, Vladimir, Vandyukov, Alexander, Khrizanforov, Mikhail, Budnikova, Yulia, Sinyashin, Oleg, Krupskaya, Yulia, Kataev, Vladislav, Büchner, Bernd, Knupfer, Martin
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Summary:The interaction of manganese( ii ) phthalocyanine with 7,7,8,8-tetracyanoquinodimethane and its perfluoro derivative proceeds with the oxidation of Mn and the reduction of the acceptor molecules to give the first mixed single crystals of manganese( iii ) phthalocyanine with TCNQ/F 4 -TCNQ radical anions. The crystals have unusual structures with C-H π interactions between the ions and their orthogonal arrangement, as well as remarkable redox properties. The charge transfer was proved by spectroscopic and magnetic studies. Single crystals of Mn( iii )Pc·2H 2 O with TCNQ/F 4 -TCNQ radical anions are stabilized via C-H π interactions. Mn( iii ) is in a high spin state.
ISSN:1477-9226
1477-9234
DOI:10.1039/c9dt03642c