| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| —— | (4aS,8aR)-4a,6,7,8a-Tetrahydro-5,8-dioxa-1,3,4,9-tetrathia-cyclopenta[b]naphthalene-2-thione | 154823-47-9 | C7H6O2S5 | 282.453 |
We have prepared a new donor MTDT-TTP (bis(methylthio)dithio-tetrathia-pentalene) and obtained β-(MTDT-TTP)2BF4, which undergoes structural transition by ordering of the bis(methylthio) groups at 190 K. A crystal structure analysis indicated that the BF4 salt is in a charge-ordered (CO) state at room temperature (RT), although it shows a metallic behavior above 260 K. The CO pattern at RT has a four-molecular cycle. The BF4 salt has also the CO state below the transition temperature, but the CO pattern is changed by the structure change.