Optimizations of diiminopropanenitrile isomers at the 
 #temperature=278 opt freq empiricaldispersion=gd3 PBEPBE/6-31g(d,p) sc
 rf=(Read,PCM,solvent=water)
level of theory 

Water PCM model adjusted epsilon to 144.8 (HCN at 278 K)

Folder contains gaussian optimized structuress. 
