§ in kJ/mol; † interaction modified with respect to the correspontent 45a4 one; ‡ new interaction term (not present in 45a4); The functional form for the torsional interaction is that of Eq.10. All other interactions are the same as in the 45a4 set $^{35}$. TABLE IV: New parameters for d- aldopyranoses torsional interactions. dihedral angle k$_{φ}$ § cos δ n C3 − C2 − C1 − O1 † 0.5 − 1 2 C4 − C3 − C2 − O2 † 0.5 − 1 2 C1 − C2 − C3 − O3 † 2.4 − 1 2 C5 − C4 − C3 − O3 † 2.4 − 1 2 C1 − O5 − C5 − C6 ‡ 0.5 − 1 2 46