Hi, I would say three: aliphatic amines such as the one you show are weak bases so at neutral pH the protonated form predominates. Aromatic amines are obviously trickier.
Cheers -- Ian On 7 August 2014 17:37, Abhinav Kumar <[email protected]> wrote: > Hi, > > I am making a ligand in Jligand (figure attached) and have a question > about valency of nitrogen. > Jligand puts three hydrogens on nitrogen N1 when the ligand is > regularized. > > Should there be two hydrogens or three? > > -- > Thanks, > Abhinav > ______________________________________ > Abhinav Kumar, Ph.D. > The Joint Center for Structural Genomics > MS99, SLAC National Accelerator Laboratory > 2575 Sand Hill Rd, Menlo Park, CA 94025 > (650) 926-2992 > > >
