当前位置：
X-MOL 学术
›
Faraday Discuss.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Low-temperature and high-pressure phases of a room-temperature ionic liquid and polyiodides: 1-methyl-3-propylimidazolium iodide
Faraday Discussions ( IF 3.3 ) Pub Date : 2017-05-24 00:00:00 , DOI: 10.1039/c7fd00172j Hiroshi Abe 1, 2, 3, 4 , Hiroaki Kishimura 1, 2, 3, 4 , Mayumi Takaku 4, 5, 6, 7 , Mai Watanabe 4, 5, 6, 7 , Nozomu Hamaya 4, 5, 6, 7
Faraday Discussions ( IF 3.3 ) Pub Date : 2017-05-24 00:00:00 , DOI: 10.1039/c7fd00172j Hiroshi Abe 1, 2, 3, 4 , Hiroaki Kishimura 1, 2, 3, 4 , Mayumi Takaku 4, 5, 6, 7 , Mai Watanabe 4, 5, 6, 7 , Nozomu Hamaya 4, 5, 6, 7
Affiliation
|
Using simultaneous small-angle X-ray scattering (SAXS) combined with differential scanning calorimetry (DSC) and wide-angle X-ray scattering (WAXS) combined with DSC measurements, low-temperature (LT) solid phases of a room-temperature ionic liquid (RTIL) and its mixtures were examined at ambient pressure. The considered RTIL was 1-methyl-3-propylimidazolium iodide ([C3mim][I]), and the mixtures could be expressed as [C3mim][Im]. Under high-pressure (HP), the crystallization of pure [C3mim][I] was suppressed, as a LT-amorphous form of pure [C3mim][I] was formed. In the mixed system, the HP crystallization of [C3mim][I3] occurred at 0.95 GPa of compression. In [C3mim][I3.66] as a non-stoichiometric system, complicated phase changes were observed. Upon compression, the edge of a sample container was crystallized. By further compression, a crystal–crystal phase transition was observed as a HP-crystal polymorph appeared. In the centre, HP amorphization was observed upon compression, whereas decompression crystallization was induced by decreasing the pressure. The HP complicated behaviors of non-stoichiometric [C3mim][I3.66] are caused by the excess of iodide/iodine.
中文翻译：
室温离子液体和聚碘化物的低温和高压相：1-甲基-3-丙基咪唑碘化物
同时使用小角度X射线散射（SAXS）和差示扫描量热法（DSC）和广角X射线散射（WAXS）并结合DSC测量，可得到室温离子的低温（LT）固相在环境压力下检查液体（RTIL）及其混合物。所考虑的RTIL为1-甲基-3-丙基咪唑碘鎓盐（[C 3 mim] [I]），并且混合物可以表示为[C 3 mim] [I m ]。下高压（HP），纯的[C的结晶3个MIM] [I]被抑制，作为纯[C的LT-无定形形式3个MIM] [I]被形成了。在混合体系中，[C 3 mim] [I 3在0.95GPa压缩下发生]。在作为非化学计量系统的[C 3 mim] [I 3.66 ]中，观察到复杂的相变。压缩后，样品容器的边缘结晶。通过进一步压缩，观察到晶体-晶体相变，出现了HP-晶体多晶型物。在中心，压缩时可观察到HP非晶化，而减压可引起减压结晶。非化学计量比的[C 3 mim] [I 3.66 ]的HP复杂行为是由碘化物/碘过量引起的。
更新日期：2017-12-15
中文翻译：
室温离子液体和聚碘化物的低温和高压相：1-甲基-3-丙基咪唑碘化物
同时使用小角度X射线散射（SAXS）和差示扫描量热法（DSC）和广角X射线散射（WAXS）并结合DSC测量，可得到室温离子的低温（LT）固相在环境压力下检查液体（RTIL）及其混合物。所考虑的RTIL为1-甲基-3-丙基咪唑碘鎓盐（[C 3 mim] [I]），并且混合物可以表示为[C 3 mim] [I m ]。下高压（HP），纯的[C的结晶3个MIM] [I]被抑制，作为纯[C的LT-无定形形式3个MIM] [I]被形成了。在混合体系中，[C 3 mim] [I 3在0.95GPa压缩下发生]。在作为非化学计量系统的[C 3 mim] [I 3.66 ]中，观察到复杂的相变。压缩后，样品容器的边缘结晶。通过进一步压缩，观察到晶体-晶体相变，出现了HP-晶体多晶型物。在中心，压缩时可观察到HP非晶化，而减压可引起减压结晶。非化学计量比的[C 3 mim] [I 3.66 ]的HP复杂行为是由碘化物/碘过量引起的。
京公网安备 11010802027423号