SURFACE VIBRATIONAL SPECTROSCOPIC STUDIES OF HYDROGEN-BONDING AND HYDROPHOBICITY

被引：702
|
作者：
DU, Q
FREYSZ, E
SHEN, YR
机构：
[1] UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720
[2] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720
来源：
SCIENCE | 1994年 / 264卷 / 5160期
关键词：
D O I：
10.1126/science.264.5160.826
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Surface vibrational spectroscopy by sum-frequency generation was used to study hydrophobicity at the molecular level at various interfaces: water-surfactant-coated quartz, water-hexane, and water-air. In all cases, hydrophobicity was characterized by the appearance of dangling hydroxyl bonds on 25 percent of the surface water molecules. At the water-quartz interface, packing restrictions force the water surface layer to have a more ordered, ice-like structure. A partly wettable water-quartz interface was also studied.
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页码：826 / 828
页数：3
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