Spectroscopic and magnetic properties of FeOCl intercalated with organosulfur electron donors
作者:S. M. Kauzlarich、J. F. Ellena、P. D. Stupik、W. M. Rieff、B. A. Averill
DOI:10.1021/ja00249a019
日期:1987.7
conductor, the intercalation chemistry of FeOCl with tetrathiolene molecules has been explored. New intercalation compounds of the organic electron donors TTF (tetrathiafulvalene), TMTTF (tetramethyltetrathiafulvalene), TTN (tetrathianaphthalene), and TTT (tetrathiatetracene) with the inorganic host FeOCl were prepared by direct reaction of solutions of the organosulfur compounds with solid FeOCl. The new
An ESR Study of the Radical Cations of Tetrathiafulvalene (TTF) and Electron Donors Containing the TTF Moiety
作者:Luka ?avara、Fabian Gerson、Dwaine O. Cowan、Knud Lerstrup
DOI:10.1002/hlca.19860690117
日期:1986.2.5
Hyperfine data and g factors are reported for the radical cations of tetrathiafulvalene (TTF; 1) and of its derivatives 2–13. From the intense satellite spectra of 1+–13+ not only the couplingconstants of the 33S isotopes in the TTF moiety could be determined, but also, in favourable cases, those of the 13C isotopes in the central double bond. The former values range from 0.370 (8+) to 0.470 mT (4+) and the
New Molecular Charge‐Transfer Salts of TM‐TTF and BMDT‐TTF with Thiocyanate and Selenocyanate Complex Anions [TMTTF = Tetramethyltetrathiafulvalene; BMDT‐TTF = Bis(methylenedithio)tetrathiafulvalene]
作者:Marta Mas‐Torrent、Scott S. Turner、Klaus Wurst、José Vidal‐Gancedo、Jaume Veciana、Peter Day、Concepció Rovira
DOI:10.1002/ejic.200390099
日期:2003.2
Three new charge-transfer salts of tetrathiafulvalene (TTF)-based donors with thiocyanato- or selenocyanato-metal complex anions have been synthesised. The salts isolated were [BMDT-TTF]4[Cr(NCS)6] (1), [TM-TTF]4[Cr(NCS)6]·2CH3CN (2) and [TM-TTF]4[Cr(NCSe)6]·2CH3CN (3) [BMDT-TTF = bis(methylenedithio)tetrathiafulvalene and TM-TTF = tetramethyltetrathiafulvalene]. Single crystals of compound 1 crystallise
已经合成了三种新的四硫富瓦烯 (TTF) 基供体与硫氰酸根合或硒氰酸根合金属络合阴离子的电荷转移盐。分离出的盐为 [BMDT-TTF]4[Cr(NCS)6] (1), [TM-TTF]4[Cr(NCS)6]·2CH3CN (2) 和 [TM-TTF]4[Cr(NCS) )6]·2CH3CN (3) [BMDT-TTF = 双(亚甲基二硫基)四硫富瓦烯和 TM-TTF = 四甲基四硫富瓦烯]。化合物 1 的单晶在单斜 C2/c 空间群中结晶,a = 37.286(3), b = 10.0539(6), c = 21.069(2) A, β = 124.348(4)°, V = 6520.9(9) ) A3 和 Z = 4。化合物 3 也适用于 X 射线衍射研究,但是阴离子部分 [Cr(NCSe)6]- 高度无序,最佳溶液的最终 R 因子为 16.4%。找到了单斜空间群 C2/m 的解,a =
Synthesis of unsymmetrical tetrathiafulvalenes and electrical conductivities of their tetracyanoquinodimethane complexes
The preparation of some unsymmetricaltetrathiafulvalenes and the electricalconductivities of their charge transfer complexes with tetracyanoquinodimethane (TCNQ) are described; the ethylenedithio(trimethylene)tetrathiafulvalene–TCNQ complex exhibited higher conductivity than complexes of tetrathiafulvalene, tetramethyltetrathia-fulvalene, and hexamethylenetetrathiafulvalene with TCNQ.
Three-Dimensionally-Modified Tetracyanoquinodimethanes and Their Charge-Transfer Complexes with Tetrathiafulvalene Derivatives Having a Wide Range of Ionicity
Eight different 1:1 charge-transfer(CT) complexes were prepared using tetrahydrobarreleno-tetracyanoquinodimethane(THBTCNQ), dihydrobarreleno-tetracyanoquinodimethane(DHBTCNQ), monobenzobarreleno-tetracyanoquinodimethane(MBBTCNQ), and dibenzobarreleno-tetracyanoquinodimethane(DBBTCNQ) as tetracyanoquinodimethane(TCNQ)-type acceptors, and tetrathiafulvalene(TTF), bis(tetramethyene)-tetrathiafulvalene(OMTTF), and tetramethyl-tetrathiafulvalene(TMTTF) as TTF-type donors. The complexes can be classified into three distinct groups, I–III, on the basis of the magnitude of both the degree of CT and the electrical resistivity of compacted powders. Group-I complexes are characterized by a small band gap semiconductivity and moderate CT, group-II complexes by low conductivity and small CT, and group III complexes by low conductivity and complete CT. The stacking mode of the three groups of complexes are discussed, by comparing the electronic absorption spectra of the three groups of CT complexes with those of the complexes for which the crystal structures are known. A crystal structure analysis of OMTTF–DBBTCNQ revealed that it is the first example of a highly ionic CT complex of a TTF–TCNQ type with a regular mixed stacking mode. These three groups of complexes containing bulky acceptor groups will be of theoretical interest in studying the crystal properties of organic CT complexes.