Journal
CRYSTALS
Volume 11, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/cryst11091118
Keywords
iron bis(1; 2-dicarbollide); chromium bis(1; 2-dicarbollide); tetramethyltetrathiafulvalene; tetramethyltetraselenafulvalene; radical-cation salts; crystal and molecular structure; electric conductivity
Funding
- Institute of Problems of Chemical Physics, Russian Academy of Sciences [AAAA-A19-119092390076-7]
- Ministry of Science and Higher Education of the Russian Federation
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New radical-cation salts based on TMTTF and TMsTSF with different metallacarborane anions were synthesized, with the third salt being a narrow-gap semiconductor.
New radical-cation salts based on tetramethyltetrathiafulvalene (TMTTF) and tetramethyltetraselenefulvalene (TMsTSF) with metallacarborane anions (TMTTF)[3,3 '-Cr(1,2-C2B9H11)(2)], (TMTTF)[3,3 '-Fe(1,2-C2B9H11)(2)], and (TMTSF)(2)[3,3 '-Cr(1,2-C2B9H11)(2)] were synthesized by electrocrystallization. Their crystal structures were determined by single crystal X-ray diffraction, and their electrophysical properties in a wide temperature range were studied. The first two salts are dielectrics, while the third one is a narrow-gap semiconductor: sigma(RT) = 5 x 10(-3) Ohm(-1)cm(-1); E-a approximate to 0.04 eV (aprox. 320 cm(-1)).
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