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. 2009 Aug 25;106(36):15243–15248. doi: 10.1073/pnas.0907875106

Table 1.

Parameters for population and orientational relaxation for water in w0 = 20 Igepal reverse micelles (2,576 cm−1)

Bulk water Interfacial water Alcohol head group
acw 0.74* aiw 0.22 ± 0.01 aia 0.04 ± 0.01
T1cw 1.8 ps* T1iw 3.2 ± 0.3 ps T1ia 4.7 ± 0.3 ps
τrcw 2.6 ps* τriw 13 ± 4 ps

ai, fractional populations; T1, lifetimes; τr, orientational relaxation times;

*, fixed parameters.