Communication
Different Molecules Experience Different Polarities at the Air/Water Interface†
†
This work was supported by a Grant-in-Aid for Scientific Research (A) (No. 19205005) from JSPS and a Grant-in-Aid for Science Research on Priority Area (No. 19056009) from MEXT. S.S. thanks JSPS for a postdoctoral fellowship.
Graphical Abstract
Split the difference: Interface-selective nonlinear spectroscopy disclosed that five coumarin derivatives exhibit significantly different solvachromatic shifts at the air/water interface, revealing that structurally different molecules experience notably different local effective polarities (
), even at the same water interface (see picture; arrows indicate transition dipole moments).
