Figure 1.

Hydrogen-bond distances (in Å) and energies (in kcal mol−1) for adenine–thymine (AT) and its smaller analogs at the BLYP-D3(BJ)/TZ2P level of theory.

Hydrogen-bond distances (in Å) and energies (in kcal mol−1) for adenine–thymine (AT) and its smaller analogs at the BLYP-D3(BJ)/TZ2P level of theory.