Facile Synthesis of a Highly Crystalline, Covalently Linked Porous Boronate Network
A covalent organic framework (COF-18Å) based on poly(boronate ester)s has been successfully synthesized through a facile dehydration process in 85−95% isolated yield. Spectroscopic characterization confirms formation of the intended ester linkages as the key structural motif forming infinite 2D hexagonally porous sheets. Powder X-ray diffraction studies were used to determine the stacking orientation between the ester-linked sheets, such that atoms in adjacent layers lie directly over each other, resulting in a hexagonal array of 1D, 18 Å pores. COF-18Åexhibits rigid, thermally stable (to 500 °C) pores with high surface area (1260 m2/g) and a micropore volume of 0.29 cm3/g.
Digital Object Identifier (DOI)
Published in Chemistry of Materials, Volume 18, Issue 22, 2006, pages 5296-5301.
© Chemistry of Materials 2006, American Chemical Society.
Tilford, R., Gemmill, W., zur Loye, H.-C., & Lavigne, J. (2006). Facile Synthesis of a Highly Crystalline, Covalently Linked Porous Boronate Network. Chemistry of Materials, 18(22), 5296–5301. https://doi.org/10.1021/cm061177g