Taken together, the aforementioned simulations indicate that 1) partial solvation at air-water interface increases the barrier of the DA reaction between ALT and CPD (Scheme 1) by about 1 kcal/mol relative to the bulk; 2) an applied static and homogeneous EEF of 0.1 V/Å is capable of lowering its barrier by about 2 kcal/mol only if oriented along the reaction axis; 3) the air-water IEF fluctuates continuously, rendering its catalytic capability limited as compared to the constant and uniform EEF case. Therefore, the cumulative effect of the partial solvation and IEF does not appear to promote the DA reaction between cyclopentadiene and acrylonitrile in water microdroplets. If, however, this DA reaction was to be accelerated in water microdroplets, other factors should be responsible.