A robust microporous zinc porphyrin framework solid.
A robust microporous zinc(II) metalloporphyrin framework solid has been synthesized. The proposed structural model developed from X-ray single crystal data has an interpenetrated three-dimensional framework of zinc trans-biscarboxylate tetraarylporphyrins whose carboxylates coordinate the six edges of tetrahedral Zn(4)O(6+) clusters, maintaining a charge-neutral framework. This cubic framework has 74% free volume and 4 x 7 A pores. N(2) adsorption gives a type I isotherm with a surface area of 800 m(2)/g, which is greater than that of a typical zeolite. Experimental evidence indicates that the interpenetrated frameworks of the evacuated solid remain intact and retain a microporous structure. This is a versatile framework system: alteration of the metal in the porphyrin may create a catalytically active solid, and modification of the 10-, 20-substituents of the porphyrin can provide control over both the polarity and the size of the pores.
Smithenry
Dennis W
DW
School of Chemical Sciences, University of Illinois at Urbana-Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, USA.
Wilson
Scott R
SR
Suslick
Kenneth S
KS
D018360:Crystallography, X-Ray; D008665:Metalloporphyrins / Q000138:chemical synthesis* / Q000737:chemistry; D008958:Models, Molecular; D016062:Porosity; D015032:Zinc / Q000737:chemistry*
D008665:Metalloporphyrins; D015032:Zinc