“…Very recently, we have also shown the application of microwave synthesis to rapidly prepare a series of crystalline blue luminescent coordination polymers with diverse structures. [38] With the above considerations in mind, a 3-D tetranuclear Cu-based MOF (Cu-MOF) has been synthesized rapidly by the reaction of copper (II) nitrate, 4-amino-1,2,4-triazole, and sodium 5-sulfoisophthalate in aqueous solution under microwave irradiation under mild conditions (Scheme 1). The Cu-MOF featuring a tetranuclear unit of [Cu 4 (μ 3 -OH) 2 ] possessed good chemical and thermal stability, and was shown to be a highly active, readily recovered and reused catalyst for the carboxylation of terminal alkynes with CO 2 .…”