EXTENDED BASIS-SET CALCULATIONS OF THE INTERACTION ENERGY AND PROPERTIES OF THE AMMONIA DIMER

Second-order Moller-Plesset calculations employing large basis sets which include bond functions are presented for (NH3)(2). The H-bonded structure is found to be more stable than a cyclic configuration. The nuclear quadrupole coupling constants for the N-14 nuclei are shown to be sensitive to rotational motions of the monomers.