Two different molecular systems with the same number of atoms will have different potential energy functions. In real life, and in an MD simulation, atoms are in constant motion. Here force fields with …

Proteins work together with other proteins or nucleic acids as "molecular machines" – structures that fit together and function in highly specific, lock-and-key ways.

Molecular orbital theory: The method of constructing molecular wave functions from one-electron molecular wave functions (molecular orbitals). Molecular orbital (MO): A wave-function describing …

Robert S. Mulliken realized that a Linear Combination of Atomic Orbitals (LCAO) could be used to make a set of new Molecular Orbitals (MO). The energies of these new molecular orbitals could be …

Empirical and Molecular Formulas When the subscripts in a chemical formula represent the simplest ratio of the kinds of atoms in the compound, the formula is called an empirical formula.

The techniques are used in the fields of computational chemistry, drug design, computational biology and materials science for studying molecular systems ranging from small chemical systems to large …

Molecular Dynamics A MD simulation generates a sequence of points in phase space connected in time The result is a trajectory function of time of all particles in the system as a Time averages and other …