TY - JOUR
T1 - High static pressure alters water-pool properties in reversed micelles formed by aerosol OT (sodium bis(2-ethylhexyl)sulfosuccinate)
T2 - A high pressure ESR study
AU - Sueishi, Yoshimi
AU - Yoshioka, Daisuke
AU - Negi, Mieko
AU - Kotake, Yashige
PY - 2005/11/11
Y1 - 2005/11/11
N2 - ESR spectra of Fremy's salt in sodium bis(2-ethylhexyl)sulfosuccinate (AOT) reversed micelles were recorded at high pressures in order to monitor dynamic properties of water molecules inside water pools. Rotational correlation times of Fremy's salt in large AOT water pools slightly decreased with increasing pressure, conversely those in small water pools increased with pressure: ΔV‡ for the rotational motion = -1.05 and 9.19 cm 3 mol-1 at ω0 = 20 and 2, respectively. These results demonstrate that most water molecules in small water pools are bound to AOT head groups and show very different physical properties from bulk water.
AB - ESR spectra of Fremy's salt in sodium bis(2-ethylhexyl)sulfosuccinate (AOT) reversed micelles were recorded at high pressures in order to monitor dynamic properties of water molecules inside water pools. Rotational correlation times of Fremy's salt in large AOT water pools slightly decreased with increasing pressure, conversely those in small water pools increased with pressure: ΔV‡ for the rotational motion = -1.05 and 9.19 cm 3 mol-1 at ω0 = 20 and 2, respectively. These results demonstrate that most water molecules in small water pools are bound to AOT head groups and show very different physical properties from bulk water.
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U2 - 10.1016/j.cplett.2005.08.151
DO - 10.1016/j.cplett.2005.08.151
M3 - Article
AN - SCOPUS:27644596469
SN - 0009-2614
VL - 415
SP - 261
EP - 264
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 4-6
ER -