Stacked Models	Dihedral Angles (φ)	Mulliken Charges of Stacked Diphenol
		−OH of Ring1				−OH of Ring2
		O	H	O	H	O	H	O	H
−OH same direction	0˚	−0.2113	0.2632	−0.2094	0.2661	−0.2010	0.2635	−0.2302	0.2665
−OH same direction	60˚	−0.2236	0.2686	−0.2194	0.2690	−0.2281	0.2722	−0.2307	0.2671
−OH opposite direction	0˚	−0.2269	0.2749	−0.2175	0.2720	−0.2178	0.2722	−0.2266	0.2748
−OH opposite direction	60˚	−0.2289	0.2674	−0.2035	0.2611	−0.2272	0.2701	−0.2168	0.2690