Donors such as amine and phenolic groups, when positioned ortho to a nitro group, are always involved in intramolecularhydrogenbonding.
在硝基邻位上存在的氢键给体如胺基，酚基时，总与硝基形成分子内氢键。
2
The X-ray analysis reveals that the crystal structures of compounds 1 and 2 are two-dimensional layer structures through intramolecularhydrogenbonding and -? stacking.
射线分析显示化合物1和2的晶体结构均由分子间氢键和-弱相互作用堆积而成的二维层状结构。
3
You should show how much energy the calculated hydrogen-bonding structure is stabilized further than the other structures without intramolecular non-covalent interaction.