Contributions to Potential Energy

• Total pair energy breaks into a sum of terms

• Ustr stretch

• Ubend bend

• Utors torsion

• Ucross cross

• UvdW van der Waals

• Uel electrostatic

• Upol polarization

Mixed terms

Repulsion

Attraction

+

-

+

+

-

u(2)

u(2)

u(N)

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