cis,cis-1,3,5-Triaminocyclohexane

cis,cis-1,3,5-Triaminocyclohexane is an organic compound with the formula (CH2CHNH2)3.

Of the many isomers possible for triaminocyclohexane, the cis,cis-1,3,5-derivative has attracted attention because it is a common tripodal ligand, abbreviated as tach.

It is a popular tridentate ligand in coordination chemistry.

It is prepared from the triscarbamate of cyclohexane.

The latter is generated via the Curtius rearrangement starting from cyclohexanetricarboxylic acid.

Structure of [Ni(TACH)(H 2 O) 3 ] 2+ (color code: blue = nitrogen, red = oxygen; dark blue = nickel). [ 2 ]