Exceptional chemical and thermal stability of zeolitic imidazolate frameworks.
Twelve zeolitic imidazolate frameworks (ZIFs; termed ZIF-1 to -12) have been synthesized as crystals by copolymerization of either Zn(II) (ZIF-1 to -4, -6 to -8, and -10 to -11) or Co(II) (ZIF-9 and -12) with imidazolate-type links. The ZIF crystal structures are based on the nets of seven distinct aluminosilicate zeolites: tetrahedral Si(Al) and the bridging O are replaced with transition metal ion and imidazolate link, respectively. In addition, one example of mixed-coordination imidazolate of Zn(II) and In(III) (ZIF-5) based on the garnet net is reported. Study of the gas adsorption and thermal and chemical stability of two prototypical members, ZIF-8 and -11, demonstrated their permanent porosity (Langmuir surface area = 1,810 m(2)/g), high thermal stability (up to 550 degrees C), and remarkable chemical resistance to boiling alkaline water and organic solvents.
Park
Kyo Sung
KS
*Department of Chemistry and Biochemistry, Center for Reticular Materials Research at California NanoSystems Institute, University of California, Los Angeles, CA 90095.
Ni
Zheng
Z
*Department of Chemistry and Biochemistry, Center for Reticular Materials Research at California NanoSystems Institute, University of California, Los Angeles, CA 90095.
Côté
Adrien P
AP
*Department of Chemistry and Biochemistry, Center for Reticular Materials Research at California NanoSystems Institute, University of California, Los Angeles, CA 90095.
Choi
Jae Yong
JY
Department of Chemistry Education, Seoul National University, Seoul 151-748, Korea.
Huang
Rudan
R
Institute for Chemical Physics, School of Science, Beijing Institute of Technology, Beijing 100081, People's Republic of China; and.
Uribe-Romo
Fernando J
FJ
*Department of Chemistry and Biochemistry, Center for Reticular Materials Research at California NanoSystems Institute, University of California, Los Angeles, CA 90095.
Chae
Hee K
HK
Department of Chemistry Education, Seoul National University, Seoul 151-748, Korea.
O'Keeffe
Michael
M
Department of Chemistry, Arizona State University, Tempe, AZ 85287.
Yaghi
Omar M
OM
*Department of Chemistry and Biochemistry, Center for Reticular Materials Research at California NanoSystems Institute, University of California, Los Angeles, CA 90095; yaghi@chem.ucla.edu.
D018360:Crystallography, X-Ray; D007093:Imidazoles / Q000737:chemistry*; D015394:Molecular Structure; D013696:Temperature; D017641:Zeolites / Q000737:chemistry*
D007093:Imidazoles; D017641:Zeolites; C029899:imidazole