Existence of Nearly-Free Hydrogen Bonds in an Ionic Liquid, N,N-Diethyl-N-methyl-N-(2-methoxyethyl) Ammonium Tetrafluoroborate-Water at 77 K

被引:31
作者
Yoshimura, Y. [1 ]
Goto, T. [1 ]
Abe, H. [2 ]
Imai, Y. [2 ]
机构
[1] Natl Def Acad, Dept Appl Chem, Yokosuka, Kanagawa 2398686, Japan
[2] Natl Def Acad, Dept Mat Sci & Engn, Yokosuka, Kanagawa 2398686, Japan
关键词
SOLVATION DYNAMICS; 1-HEXYL-3-METHYLIMIDAZOLIUM HEXAFLUOROPHOSPHATE; VIBRATIONAL SPECTROSCOPY; SUPERCOOLED WATER; MIXTURES; COUMARIN-153; RELAXATION; TRANSITION; SOLVENTS; CHLORIDE;
D O I
10.1021/jp902125f
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070305 [高分子化学与物理];
摘要
When making the glassy water-ionic liquid, N,N-diethyl-N-methyl-N-(2-methoxyethyl) ammonium tetrafluoroborate [DEME][BF4] solution, the water molecule existing as a single molecule without self-associated state is preserved even at 77 K and survives not to form the hydrogen bond network among themselves as in pure H2O liquid. The water molecule might loosely interact with BF4- anions: At water-rich concentration, H2O ice crystals and the water molecules in the ionic liquid coexist as a mixture, which may result from microheterogeneities in the solid aqueous ionic liquid solution.
引用
收藏
页码:8091 / 8095
页数:5
相关论文
共 39 条
[1]
Adhikari A, 2007, J PHYS CHEM B, V111, P12809, DOI [10.1021/jp075693l, 10.1021/jp0756931]
[2]
SUPERCOOLED WATER - APPROACHING THE LIMITS [J].
ANGELL, CA .
NATURE, 1988, 331 (6153) :206-207
[3]
GLASS-FORMING COMPOSITION REGIONS AND GLASS TRANSITION TEMPERATURES FOR AQUEOUS ELECTROLYTE SOLUTIONS [J].
ANGELL, CA ;
SARE, EI .
JOURNAL OF CHEMICAL PHYSICS, 1970, 52 (03) :1058-&
[4]
How does water affect the dynamics of the room-temperature ionic liquid 1-hexyl-3-methylimidazolium hexafluorophosphate and the fluorescence spectroscopy of coumarin-153 when dissolved in it? [J].
Annapureddy, Harsha V. R. ;
Hu, Zhonghan ;
Xia, Junchao ;
Margulis, Claudio J. .
JOURNAL OF PHYSICAL CHEMISTRY B, 2008, 112 (06) :1770-1776
[5]
Solvation dynamics and proton transfer in supramolecular assemblies [J].
Bhattacharyya, K .
ACCOUNTS OF CHEMICAL RESEARCH, 2003, 36 (02) :95-101
[6]
Cammarata L, 2001, PHYS CHEM CHEM PHYS, V3, P5192, DOI 10.1039/b106900d
[7]
Effect of water, methanol, and acetonitrile on solvent relaxation and rotational relaxation of coumarin 153 in neat 1-hexyl-3-methylimidazolium hexafluorophosphate [J].
Chakrabarty, D ;
Chakraborty, A ;
Seth, D ;
Sarkar, N .
JOURNAL OF PHYSICAL CHEMISTRY A, 2005, 109 (09) :1764-1769
[8]
ATR-FTIR spectroscopic studies on aqueous LiClO4, NaClO4, and Mg(ClO4)2 solutions [J].
Chen, Y ;
Zhang, YH ;
Zhao, LJ .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2004, 6 (03) :537-542
[9]
FREQUENCY SHIFT-ENTHALPY CORRELATION FOR A GIVEN DONOR WITH VARIOUS HYDROGEN-BONDING ACIDS [J].
DRAGO, RS ;
OBRYAN, N ;
VOGEL, GC .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1970, 92 (13) :3924-&
[10]
Ionic liquids. Green solvents for the future [J].
Earle, MJ ;
Seddon, KR .
PURE AND APPLIED CHEMISTRY, 2000, 72 (07) :1391-1398