Reproducible Synthesis and High Porosity of mer-Zn(Im)_2 (ZIF-10): Exploitation of an Apparent Double-Eight Ring Template

摘要

Reproducible synthesis of the elusive merlinoite (mer) topology of zinc imidazolate (mer-Zn(Im)_2, or ZIF-10) has been achieved by employing a simple macrocydic solute-MeMeCH_2-as a kinetic template. The corresponding phase-pure material, mer-MeMeCH_2@Zn_(16)(Im)_(32), is confirmed to be porous and exhibits one of the highest experimental surface areas (1893 m~2/g, BET) yet reported for any ZIF. The X-ray single crystal structure of mer-MeMeCH_2@Zn_(16)(Im)_(32)· xsolvent reveals the role of the macrocyle as an 8-fold hydrogen bond acceptor in templating the requisite double-eight rings (d8r) of the mer framework.