Synthesis of MOF having functional side group

For the preparation of MOFs which can be modified via postsynthetic modification, a homologous series of p-terphenyl-4,4'-dicarboxylic acid having hydroxyl side groups, ranging from 0 to 4, as functional groups have been synthesized. Then the modified IRMOF-16, named as HCC-1, has been successfully synthesized via solvothermal and microwave method using 1,4-di(4-carboxy-2-hydroxyphenyl)benzene as organic ligand and Zn(NO(3))(2)center dot 6H(2)O as metal source, respectively. A series of structural analyses have identified that it has the same crystal structure and dimensions as those of IRMOF-16. Despite the successful synthesis, conventional method of activation did not proved to be adequate for HCC-1 because of structural collapse. However, this problem could be minimized with the help of continuous CO(2) supercritical drying (SCD) process. (C) 2011 Elsevier B.V. All rights reserved.