Table : Comparison between the geometries optimized by different methods for the SA-AM, SA-DMA, and SA-AM-DMA systems. The root-mean-squared distances (RMSD, in Å) are calculated compared to the reference geometries given by Besel et al. and Myllys et al. The reference geometries are calculated at the ωB97X-D/6-31++G(d,p) level. S refers to the small 6-31++G(d,p) basis set and L refers to the larger 6-311++G(3df,3pd) basis set.