Low Temperature Matrix-Isolation and Solid State Vibrational Spectra of 5-Chlorotetrazoleelectronic Supplementary Information (Esi) Available: Calculated Molecular Geometries, Rotational Constants, Energies and Dipole Moments. Definition of Internal Symmetry Coordinates Used in the Normal Mode Analysis. Experimental Spectrum of Polycrystalline 5-Chlorotetrazole and Calculated Spectrum for the 1H-Tautomer. See Http://Www.rsc.org/Suppdata/Cp/B1/B111329C/