Table 2. Comparison of Excitation Energies (ϵ, in eV), Components of the Transition Dipole Moment (μ_x, μ_y, μ_z, in Å), and Oscillator Strength (f_osc) for Molecules in Benzaldehyde Dimers with Different Separations R (in Å) along the z Axis.

R	ϵ	μx	μy	μz	fosc
4	4.85	–0.0128	–0.5974	0.0722	0.1537
	4.82	–0.0102	–0.5994	0.0963	0.1556
6	4.81	0.0088	0.6651	–0.0897	0.1896
	4.81	0.0071	0.6678	–0.0902	0.1911
8	4.80	–0.0063	–0.6930	0.0924	0.2053
	4.80	–0.0059	–0.6934	0.0919	0.2055
10	4.79	0.0051	0.7048	–0.0928	0.2118
	4.79	–0.0052	–0.7050	0.0924	0.2119
12	4.79	–0.0049	–0.7105	0.0929	0.2152
	4.79	–0.0049	–0.7103	0.0927	0.2151
16	4.79	–0.0047	–0.7153	0.0930	0.2181
	4.79	–0.0047	–0.7152	0.0929	0.2180
20	4.79	–0.0047	–0.7276	0.0944	0.2256
	4.79	–0.0047	–0.7277	0.0943	0.2256
24	4.78	–0.0048	–0.7284	0.0943	0.2256
	4.78	–0.0048	–0.7286	0.0944	0.2257