The paper presents the synthesis and characterization of twelve zeolitic imidazolate frameworks (ZIFs) using copolymerization of Zn(II) or Co(II) with imidazolate-type links. These ZIFs are based on the nets of seven distinct aluminosilicate zeolites, with one example of a mixed-coordination imidazolate of Zn(II) and In(III) (ZIF-5) reported. The study focuses on the gas adsorption and thermal and chemical stability of two prototypical members, ZIF-8 and -11, which exhibit permanent porosity, high thermal stability up to 550°C, and remarkable chemical resistance to boiling alkaline water and organic solvents. The exceptional chemical stability of ZIFs is attributed to their hydrophobic pore structure and the stability of the bonding between imidazolate and metal ions. The results highlight the potential applications and structural diversity of this class of porous materials.The paper presents the synthesis and characterization of twelve zeolitic imidazolate frameworks (ZIFs) using copolymerization of Zn(II) or Co(II) with imidazolate-type links. These ZIFs are based on the nets of seven distinct aluminosilicate zeolites, with one example of a mixed-coordination imidazolate of Zn(II) and In(III) (ZIF-5) reported. The study focuses on the gas adsorption and thermal and chemical stability of two prototypical members, ZIF-8 and -11, which exhibit permanent porosity, high thermal stability up to 550°C, and remarkable chemical resistance to boiling alkaline water and organic solvents. The exceptional chemical stability of ZIFs is attributed to their hydrophobic pore structure and the stability of the bonding between imidazolate and metal ions. The results highlight the potential applications and structural diversity of this class of porous materials.