About alkali metal dicyanamides: syntheses, single-crystal structure determination, DSC/TG and vibrational spectra of KCs[N(CN)2]2 and NaRb2[N(CN)2]3 · H2O

Single crystals of KCs[N(CN)2]2 (I) and NaRb2[N(CN)2]3·H2O (II) are obtained by mixing aqueous solutions of Na[N(CN)2] and the respective alkali fluoride followed by slow H2O evaporation.