A Methyl-Substituted Thiophene-Tetrathiafulvalene Donor and Its Salts

被引：2

作者：

Silva, Rafaela A. L. ^{[2
]}

Santos, Isabel C. ^{[2
]}

Lopes, Elsa B. ^{[2
]}

Rabaca, Sandra ^{[2
]}

Galindo, Sergi ^{[3
,4
]}

Mas-Torrent, Marta ^{[3
,4
]}

Rovira, Concepcio ^{[3
,4
]}

Almeida, Manuel ^{[2
]}

Belo, Dulce ^{[1
,2
]}

机构：

[1] Univ Lisbon, Inst Super Tecn, C2TN, P-2695066 Bobadela Lrs, Portugal

[2] Univ Lisbon, Inst Super Tecn, C2TN, P-2695066 Bobadela Lrs, Portugal

[3] Inst Ciencia Mat Barcelona ICMAB CSIC, Bellaterra 08193, Spain

[4] CIBER BBN, Bellaterra 08193, Spain

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2015年 / 30期

关键词：

Redox chemistry; Sulfur heterocycles; Charge transfer; Conducting materials; Transistors; FIELD-EFFECT TRANSISTORS; SPIN-LADDER; CRYSTAL-STRUCTURE; BEDT-TTF; BET-TTF; DT-TTF; COMPLEXES; FAMILY; FE; THERMOPOWER;

D O I：

10.1002/ejic.201500806

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

alpha-Methyldithiophene-tetrathiafulvalene (-mDT-TTF), the first alkyl-substituted thiophene-tetrathiafulvalene electronic donor, and some of its charge-transfer salts were explored. The crystal structure of -mDT-TTF is composed of molecular stacks aligned parallel to each other. Its cyclic voltammetry shows higher electron-donor ability than the unsubstituted analogue. This material was employed as a semiconductor in an organic field-effect transistor and showed a mobility of 4x10(-4) cm(2)V(-1)s(-1). Two charge-transfer salts of this donor with [M(mnt)(2)](-) anions (mnt = maleonitriledithiolate), M = Co and Au, were obtained by electrocrystallization; they present unusual stoichiometries: (-mDT-TTF)[Co(mnt)(2)] and (-mDT-TTF)(3)[Au(mnt)(2)](2). In the cobalt compound, the donor molecules are fully oxidized and the Co complex is dimerized; it presents semiconducting behavior (7x10(-3) Scm(-1)). The gold compound is composed of alternating stacks of donor trimers and pairs of anions.

引用

页码：5003 / 5010

页数：8

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