Abstract

The thermal decomposition of metal propiolate salts, M[O 2 CC≡CH] x •y[HO 2 CC≡CH]•zH 2 O, where M=Na, is described for slow heating by TGA, DSC, and IR spectroscopy and for fast heating (80-300 o C/s) by FTIR/temperature profiling. The decomposition temperatures and ΔH dec of the Na + , K + , and Rb + salts predict their tendency to thermalize by decarbonylation, decarboxylation, or coupling when in the unconfined state

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