| 查看: 247 | 回复: 0 | ||
[求助]
求翻译谢谢
|
|
ABSTRACT: Electrocrystallization of enantiopure (S,S,S,S)- and (R,R,R,R)-tetramethyl-bis(ethylenedithio)-tetrathiafulva?lene (TM-BEDT-TTF) donors, as well as the racemic mixture, in the presence of potassium cations and the tris(chloranilato)- ferrate(III) [Fe(Cl2An)3] 3? paramagnetic anion afforded a complete series of chiral magnetic molecular conductors formulated as β - [ ( S,S,S,S )-TM-BEDT?TTF]3PPh4[KI FeIII(Cl2An)3]·3H2O (1), β-[(R,R,R,R)-TM?BEDT-TTF]3PPh4[KI FeIII(Cl2An)3]·3H2O (2), and β-[(rac)- TM-BEDT-TTF]3PPh4[KI FeIII(Cl2An)3]·3H2O (3). Com?pounds 1?3 are isostructural and crystallize in triclinic space groups (P1 for 1 and 2, P?1 for 3) showing a segregated organic?inorganic crystal structure, where anionic honeycomb layers obtained by self-assembling of the Λ and Δ enantiomers of the paramagnetic complex with potassium cations alternate with organic layers where the chiral donors are arranged in the β packing motif. Compounds 1?3 show a molecular packing strongly influenced by the topology of the inorganic layers and behave as molecular semiconductors with room-temperature conductivity values of ca. 3 × 10?4 S cm?1 . The magnetic properties are dominated by the paramagnetic S = 5/2 [Fe(Cl2An)3] 3? anions whose high-spin character is confirmed by magnetic susceptibility measurements. The correlation between crystal structure and conducting behavior has been studied by means of tight-binding band structure calculations which support the observed conducting properties. 发自小木虫Android客户端 |
回复此楼» 猜你喜欢
博士自荐
已经有6人回复
-
博士推荐
已经有4人回复
-
求环氧树脂研发1名
已经有10人回复
-
280求调剂
已经有5人回复
-
什么是人一生最重要的？
已经有10人回复
-
面上可以超过30页吧？
已经有13人回复
-
为什么中国大学工科教授们水了那么多所谓的顶会顶刊，但还是做不出宇树机器人？
已经有13人回复
-
版面费该交吗
已经有17人回复
-
【博士招生】太原理工大学2026化工博士
已经有8人回复