Observation of Immobilized Water Molecules around Hydrophobic Groups

by: YLA Rezus, HJ Bakker

Physical Review Letters, Vol. 99, No. 14. (2007)

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Abstract

We have used femtosecond midinfrared spectroscopy to study the orientational mobility of water molecules in the hydration shells of hydrophobic groups. Our results show that hydrophobic groups are surrounded by a number of water molecules that display much slower orientational dynamics than the bulk liquid and that are therefore effectively immobilized. It turns out that each methyl group is surrounded by four immobilized water OH groups.

@article{citeulike:1815246, abstract = {We have used femtosecond midinfrared spectroscopy to study the orientational mobility of water molecules in the hydration shells of hydrophobic groups. Our results show that hydrophobic groups are surrounded by a number of water molecules that display much slower orientational dynamics than the bulk liquid and that are therefore effectively immobilized. It turns out that each methyl group is surrounded by four immobilized water OH groups.}, author = {Rezus, Y. L. A. and Bakker, H. J. }, citeulike-article-id = {1815246}, doi = {10.1103/PhysRevLett.99.148301}, journal = {Physical Review Letters}, keywords = {2007, focus, rotation, water}, number = {14}, posted-at = {2008-03-18 19:34:37}, priority = {2}, publisher = {APS}, title = {Observation of Immobilized Water Molecules around Hydrophobic Groups}, url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=PRLTAO000099000014148301000001\&idtype=cvips\&gifs=yes}, volume = {99}, year = {2007} }

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TY - JOUR ID - citeulike:1815246 TI - Observation of Immobilized Water Molecules around Hydrophobic Groups JF - Physical Review Letters VL - 99 IS - 14 PB - APS N2 - We have used femtosecond midinfrared spectroscopy to study the orientational mobility of water molecules in the hydration shells of hydrophobic groups. Our results show that hydrophobic groups are surrounded by a number of water molecules that display much slower orientational dynamics than the bulk liquid and that are therefore effectively immobilized. It turns out that each methyl group is surrounded by four immobilized water OH groups. KW - 2007 KW - focus KW - rotation KW - water AU - Rezus, YLA AU - Bakker, HJ PY - 2007/// UR - http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000099000014148301000001&idtype=cvips&gifs=yes ER -

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