Tautomeric and conformational equilibria of biologically important (hydroxyphenyl)alkylamines in the gas phase and in aqueous solutionElectronic supplementary information (ESI) available: Table S1: Optimized geometric parameters for substructure moieties in the gas phase and in aqueous solution by the continuum solvent model. Table S2: Optimized geometric parameters for 4-aminophenol in the gas phase and in aqueous solution by the continuum solvent model. Table S3: Atomic charges and dipole moments in aqueous solution. See http://www.rsc.org/suppdata/cp/b3/b314924b/