TY - JOUR
T1 - Water-Induced Breaking of the Coulombic Ordering in a Room-Temperature Ionic Liquid Metal Complex
AU - Hiraoka, Tomoaki
AU - Ohtani, Ryo
AU - Nakamura, Masaaki
AU - Lindoy, Leonard F.
AU - Hayami, Shinya
N1 - Funding Information:
This work was supported by a JSPS Grant-in-Aid for Young Scientists JP18K14245 and JSPS Grant-in-Aid for Scientific Research on Innovative Areas (Mixed Anion JP17H05485). This work was also supported by a KAKENHI Grant-in-Aid for Scientific Research (A) JP17H01200 and was partially supported by the Cooperative Research Program of the ‘Network Joint Research Centre for Materials and Devices’. We thank Prof. Kimi-zuka, Dr. Yanai, and Mr. Yamamoto for the rheology experiments.
Funding Information:
This work was supported by a JSPS Grant-in-Aid for Young Scientists JP18K14245 and JSPS Grant-in-Aid for Scientific Research on Innovative Areas (Mixed Anion JP17H05485). This work was also supported by a KAKENHI Grant-in-Aid for Scientific Research (A) JP17H01200 and was partially supported by the Cooperative Research Program of the ?Network Joint Research Centre for Materials and Devices?. We thank Prof. Kimizuka, Dr. Yanai, and Mr. Yamamoto for the rheology experiments.
Publisher Copyright:
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2019/6/4
Y1 - 2019/6/4
N2 - Control of ion arrangements in ionic liquids represents a major challenge owing to the presence of the predominant coulombic interactions between cationic and anionic ion species that forms the coulombic ordering. Here, water-induced ion rearrangement in a room-temperature ionic liquid (RT-IL) metal complex, (1-ethyl-3-methylimidazolium)2[MnN(CN)4], is demonstrated through coordinative interactions between anions. Solidification occurred, which was associated with the formation of a “separated” structure consisting of cation columns and anionic cyanide-bridged one-dimensional coordination polymers. The energy diagram is in accord with the resultant RT-IL incorporating mononuclear [MnN(CN)4]2− molecules being a kinetic phase stabilized by inter-ion repulsions of the anionic divalent metal complex moieties. Water acts to decrease the coulombic interactions, including repulsion, giving rise to breaking of the coulombic ordering arising from coordination bond formation in the IL phase.
AB - Control of ion arrangements in ionic liquids represents a major challenge owing to the presence of the predominant coulombic interactions between cationic and anionic ion species that forms the coulombic ordering. Here, water-induced ion rearrangement in a room-temperature ionic liquid (RT-IL) metal complex, (1-ethyl-3-methylimidazolium)2[MnN(CN)4], is demonstrated through coordinative interactions between anions. Solidification occurred, which was associated with the formation of a “separated” structure consisting of cation columns and anionic cyanide-bridged one-dimensional coordination polymers. The energy diagram is in accord with the resultant RT-IL incorporating mononuclear [MnN(CN)4]2− molecules being a kinetic phase stabilized by inter-ion repulsions of the anionic divalent metal complex moieties. Water acts to decrease the coulombic interactions, including repulsion, giving rise to breaking of the coulombic ordering arising from coordination bond formation in the IL phase.
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U2 - 10.1002/chem.201900069
DO - 10.1002/chem.201900069
M3 - Article
C2 - 30964217
AN - SCOPUS:85065651168
SN - 0947-6539
VL - 25
SP - 7521
EP - 7525
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 31
ER -