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Crystals 2012, 2(1), 43-55; doi:10.3390/cryst2010043
Article

New Fulvalenium Salts of Cobalt Bis(dicarbollide): Crystal Structures and Electrical Conductivities

1
, 2
, 3
, 4
, 5
, 5
, 5,* , 5, 1
 and 1
1 Institute of Problems of Chemical Physics, Russian Academy of Sciences, Semenov Av. 1, 142432, Chernogolovka, Moscow Region, Russia 2 N.S.Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii Prosp. 31, 119991, Moscow, Russia 3 V.N.Karazin Kharkiv National University, Svoboda Sq. 4, 61077, Kharkiv, Ukraine 4 Institute of Chemistry, Jan Kochanowski University of Humanities and Sciences, 15G Swietokrzyska Str., 25-406, Kielce, Poland 5 A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Str. 28, 119991, Moscow, Russia
* Author to whom correspondence should be addressed.
Received: 6 December 2011 / Revised: 21 December 2011 / Accepted: 22 December 2011 / Published: 6 January 2012
(This article belongs to the Special Issue Molecular Conductors)
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Abstract

New radical cation salts (BEDT-TTF)[8,8',(7)-Cl2(Cl0.09)-3,3'-Co(1,2-C2B9H9.91)(1',2'-C2B9H10)] (1), (BEDT-TTF)[8,8'-Br0.75Cl1.25-3,3'-Co(1,2-C2B9H10)2] (2), and (BMDT-TTF)4[8,8'-Br1.16(OH)0.72-3,3'-Co(1,2-C2B9H10.06)2] (3) were synthesized, and their crystal structures and electrical conductivities were determined. All the radical cation salts are semiconductors. Compounds 1 and 2 were found to be isostructural, however their electrical conductivities strongly differ (s293 = 2 Ω1cm−1 and 10−5 Ω−1cm−1, respectively).
Keywords: molecular conductors; cobalt bis(dicarbollide); bis(ethylenedithio) tetrathiafulvalene; bis(methylenedithio)tetrathiafulvalene; structure; conductivity molecular conductors; cobalt bis(dicarbollide); bis(ethylenedithio) tetrathiafulvalene; bis(methylenedithio)tetrathiafulvalene; structure; conductivity
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Kazheva, O.N.; Aleksandrov, G.G.; Kravchenko, A.V.; Starodub, V.A.; Lobanova, I.A.; Kosenko, I.D.; Sivaev, I.B.; Bregadze, V.I.; Buravov, L.I.; Dyachenko, O.A. New Fulvalenium Salts of Cobalt Bis(dicarbollide): Crystal Structures and Electrical Conductivities. Crystals 2012, 2, 43-55.

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