期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 22, 期 17, 页码 8361-8366出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm16821a
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资金
- KAKENHI from JSPS [23110719, 19GS1209]
- Institute for Molecular Science
- KAKENHI [22340100]
- Grants-in-Aid for Scientific Research [20110007, 22340100] Funding Source: KAKEN
Alkali metal salts of 7,7',8,8'-tetracyanoquinodimethane (TCNQ) reversibly absorb iodine forming the ternary salts M(TCNQ)I (M = Li, Na, K) and M-2(TCNQ)(3)I-2 (M = Rb). The ternary salts are also obtained by solid-state reactions of TCNQ with alkali iodides. These salts are paramagnetic and have high electrical conductivities, similar to 10(-1) S cm(-1), for compacted pellets, whereas the alkali metal salts of TCNQ are diamagnetic insulators. The ternary salts further absorb iodine to give over-doped salts M(TCNQ)I-n (n approximate to 6, M = Na, K), which gradually release iodine to give M(TCNQ)I. In contrast, the solid-state reaction of F(4)TCNQ and sodium iodide produces Na(F(4)TCNQ), which does not exhibit iodine absorption.
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