Metal salts of the 4,5-dicyano-2H-1,2,3-triazole anion ([C4N5])Electronic supplementary information (ESI) available: General method, calculated IR/Raman frequencies, X-ray tables for compounds 4, 6 and 8b and graph-set analysis of compounds 6 and 8b. CCDC reference numbers 852499852501. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c2dt12100j
Diaminomaleodinitrile was reacted at low temperatures with in situ generated nitrous acid to form 4,5-dicyano-2 H -1,2,3-triazole ( 1 ) in yields above 90%. Crystalline 1 was then reacted with one equivalent of a suitable alkali or alkaline earth metal base (typically a hydroxide or a carbonate) in...
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