Thiocyanate lattice energies

The lattice energies of the alkali metal thiocyanates can be calculated from Yatsimirskii s (133) thermochemical radius of 1.95 A or, in the case of NaCNS and KCNS, from the hydration enthalpies obtained from the Buchner interpolation by Waddington (1 6). The results are given in Table XXIII. There is a considerable discrepancy between them. Waddington s results lead to a value of —25.9 kcal/mole for AH/CNS (g) and Yatsimirskii s to a value of —11.5 kcal/mole. 

Lattice energies, alkali metal salt values, amides and, 196 azides and, 198-199 bifluorides and, 199 borofluorides and, 203 borohydrides and, 197 chalcogenides and, 192,193 cyanates and, 199-200 cyanides and, 196-197 halides and, 189, 190 hydrides and, 189, 191, 192 hydrosulfides and, 195-196 hydroxides and, 192,194, 195 nitrates and, 201 superoxides and, 197-198 thiocyanates and, 200 alkaline earth salt values, acetylides and, 198 carbonates and, 202-203 chalcogenides and, 192, 193 imides and, 196 peroxides and, 198 calculation uses, absolute enthalpies and, 206 electron affinity determination and, 203-204... 

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