Evaluation of Structural Properties and Catalytic Activities in Knoevenagel Condensation Reaction of Zeolitic Imidazolate Framework-8 Synthesized under Different Conditions

Table 2

Characteristics of ZIF-8 obtained in different solvents.

Solvent	Product (state, color, and abundance ratio)
	Process A	Process B
Methanol	Solid, white, medium	Solid, milk white, very small
DMF	Gel, white	Solid, white, medium
Water	Solid, white, large	Solid, white, large
Toluene	Solid, gray, very small	Gel, white

Z-A(MeOH) sample; Z-B(DMF) sample.