Author/Authors :
Ridley، نويسنده , , Christina and Stern، نويسنده , , Abraham C. and Green، نويسنده , , Tony and DeVane، نويسنده , , Russell and Space، نويسنده , , Brian and Miksosvska، نويسنده , , Jaroslava and Larsen، نويسنده , , Randy W.، نويسنده ,
Abstract :
Here, we present synergistically combined experimental and theoretical approaches to describe the molecular volume change associated with the photoisomerization of aqueous trans-azobenzene to cis-azobenzene. Although the cis isomer is sterically larger a volume contraction (trans–cis) of 4 mL/mol is observed by photoacoustic calorimetry in aqueous solution. Theoretical methods predict the same volume contraction and have determined the origin to be due to electrostriction arising from the newly formed dipolar species.
