Gaussian16 optimizations of aminoiminobutanedinitrile at the 
The calculations are done on different conformers in a manual search for the ground state. I_L_109 is the ground state.
 #temperature=278 opt freq empiricaldispersion=gd3 B3LYP/6-31+g(d,p) sc
 rf=(Read,PCM,solvent=water)
 level of theory with water pcm model with an adjusted epsilon of 144.8 to match that of HCN at 278 K.
