For this work we utilized the 46 molecule set of Hickey and Rowley 17 , which have experimentally measured dipole moments ranging between 0-7.0 D. Despite its relatively small size, this benchmark set includes a variety inorganic and organic molecules with moieties that span much of biochemistry. We added one additional molecule to this set, ammonia borane, which provides an experimentally measured dipole moment (5.22 D) that is intermediate to the two highest dipole moments in this set, dimethylsulfone (4.43 D) and cytosine (7.00 D), which otherwise have a relatively large gap between them. All molecular structures were built from SMILES strings using a Python interface to Open Babel 2.4.1. In the case of acetic acid, the structure was modified to the syn conformer (the preferred conformer in gas phase) using Avogadro 1.2.0.