The porous framework of ZIF-67 (IMAGE) Karlsruher Institut für Technologie (KIT) Caption The porous framework of ZIF-67: The metal centers of cobalt (pyramids) are connected to each other by methyl imidazolate (rods and rings). (Graphics: R. Ahmad) Credit Graphics: R. Ahmad Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.