Correlation of the hydrogen-bond acceptor properties of nitrogen with the geometry of the N<i>sp</i> <sup> <i>2</i> </sup>→N<i>sp</i> <sup> <i>3</i> </sup> transition in <i>R</i> <sub>1</sub>(<i>X</i>=)C–N<i>R</i> <sub>2</sub> <i>R</i> <sub>3</sub> substructures: reaction pathway for the protonation of nitrogen
The non-bonded N...H interactions between N atoms of R 1 (X =)C-N(R 2 R 3 ) (R 2 ,R 3 = Csp 3 or H) substructures and the H atoms of N-H and O-H donors have been analysed usi...