Abstract
AbstractA new zinc phosphonocarboxylate Na[Zn(O3PC2H4CO2)]·H2O (1) has been hydrothermally synthesized by base‐catalyzed hydrolysis of trimethyl 3‐phosphonopropionate. An X‐ray crystallographic study revealed that 1 consists of parallel stacked inorganic hexagonal sheets which are connected by organic −C−C−C−O− pillars forming a three‐dimensional framework with the same topology as ABW‐type zeolites. The accessible channel of 1 consisting of 22 atoms is larger than those of ABW‐type zeolites and the metal phosphonates Zn(O3PC2H4NH2) and Zn(O3PC2H4CO2H)·1.5H2O. TGA shows the trapped water molecules in 1 can be thermally removed without damage to the framework. Furthermore, dehydrated 1 is stable up to 340 °C. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)
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